Journal of Chemical Crystallography最新文献

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7-Dimethylamino-4-Hydroxycoumarin and Derivatives: Enhanced β-Chain Hydrogen-Bonding 7-二甲基氨基-4-羟基香豆素及其衍生物:增强的 β 链氢键作用
IF 0.4 4区 化学
Journal of Chemical Crystallography Pub Date : 2024-05-30 DOI: 10.1007/s10870-024-01020-7
Elisei Cosovan, Victor Cosovan, Daniel A. Osborne, David H. Magers, Edward J. Valente
{"title":"7-Dimethylamino-4-Hydroxycoumarin and Derivatives: Enhanced β-Chain Hydrogen-Bonding","authors":"Elisei Cosovan,&nbsp;Victor Cosovan,&nbsp;Daniel A. Osborne,&nbsp;David H. Magers,&nbsp;Edward J. Valente","doi":"10.1007/s10870-024-01020-7","DOIUrl":"10.1007/s10870-024-01020-7","url":null,"abstract":"<div><p>\u0000 The crystal and molecular structure of 7-dimethylamino-4-hydroxycoumarin as its hydrate (<b>1</b>, C<sub>11</sub>H<sub>11</sub>NO<sub>3</sub> • H<sub>2</sub>O) has been determined. Crystals are monoclinic, space group <i>P</i>2(1)/<i>n</i> with <i>a</i> = 7.1435(4) Å, <i>b</i> = 20.1763(6) Å, <i>c</i> = 7.8590(3) Å, <i>β</i> = 110.018(5)<sup>o</sup> and V = 1064.28(8)Å<sup>3</sup> for 4 formula units per cell. Both coumarin enol ester hydroxy and carboxy groups engage in hydrogen-bonding with the water of crystallization. Several 3-substituted derivatives were prepared from this material including 7-dimethylamino-3-benzyl-4-hydroxycoumarin (<b>2</b>) and 7-dimethylaminowarfarin (<b>4</b>). Compound <b>2</b> (C<sub>18</sub>H<sub>16</sub>NO<sub>3</sub>) crystallizes in the triclinic system, space group <i>P</i>-1, with <i>a</i> = 7.0180(7) Å, <i>b</i> = 7.8143(7) Å, <i>c</i> = 14.3158(10) Å, <i>α</i> = 90.586(6)<sup>o</sup>, <i>β</i> = 94.738(5)<sup>o</sup>, <i>γ</i> = 104.639(7)<sup>o</sup>, and V = 756.57(9) Å<sup>3</sup> for 2 molecules in the cell. For compound <b>2</b>, the crystal structure shows infinite hydrogen-bonded translational β-chains linking well aligned hydroxy and ester carboxy groups with a repeat distance of 7.018 Å. The dipolar nature of the substituted 4-hydroxycoumarin strengthens the β-chains compared to unsubstituted systems in which the repeat is longer and weaker at 7.17 Å. Computations (DFT) support the bond length changes due to a dipolar influence of the 7-dimethylamino group (compared to the unsubstituted compounds), and a more negative carboxy oxygen hydrogen-bond acceptor. For compound <b>4</b> (C<sub>21</sub>H<sub>21</sub>NO<sub>4</sub>), a stereoselective synthesis allowed preparation of the (S)-isomer which crystallized in the orthorhombic system, space group <i>P</i>2(1)2(1)2(1), with <i>a</i> = 6.7857(3) Å, <i>b</i> = 14.7140(5) Å, <i>c</i> = 17.4652(7) Å and V = 1743.81(12) Å<sup>3</sup> for 4 molecules in the cell. Compound <b>4</b> forms the <i>trans</i> cyclic hemiketal from methanol in the crystal. In CDCl<sub>3</sub> solution (298 K), <b>4</b> exists as an equilibrium mixture of three tautomers: 12.8% open form, 45.5% <i>cis</i> hemiketal and 41.7% <i>trans</i> hemiketal (coumarin forms).</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div><div><p>\u0000 Elisei Cosovan, Victor Cosovan, Daniel A. Osborne, David H. Magers, Edward J. Valente-3-Benzyl-4-hydroxy-7-dimethylaminocoumarin forms enhanced translational β-chain hydrogen-bonded arrays in the crystal</p></div></div></figure></div></div>","PeriodicalId":615,"journal":{"name":"Journal of Chemical Crystallography","volume":"54 3","pages":"274 - 284"},"PeriodicalIF":0.4,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141197005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis, Structural Elucidation and DNA-Binding Studies of Centrosymmetric Paddlewheel Copper Carboxylate Complexes 中心对称桨轮羧酸铜配合物的合成、结构阐明和 DNA 结合研究
IF 0.4 4区 化学
Journal of Chemical Crystallography Pub Date : 2024-05-28 DOI: 10.1007/s10870-024-01018-1
Afifa Mushtaq, Muhammad Iqbal, Zahid Rashid, Khadija Shahid, Muhammad Nawaz Tahir, Saqib Ali
{"title":"Synthesis, Structural Elucidation and\u0000 DNA-Binding Studies of Centrosymmetric Paddlewheel Copper Carboxylate\u0000 Complexes","authors":"Afifa Mushtaq,&nbsp;Muhammad Iqbal,&nbsp;Zahid Rashid,&nbsp;Khadija Shahid,&nbsp;Muhammad Nawaz Tahir,&nbsp;Saqib Ali","doi":"10.1007/s10870-024-01018-1","DOIUrl":"10.1007/s10870-024-01018-1","url":null,"abstract":"<div><p>Synthesis, characterization and structural relevance of four new copper\u0000 carboxylate complexes (<b>1</b>–<b>4</b>) has been presented here. The complexes have been\u0000 synthesized by direct treatment of the substituted phenyl acetate and pyridine\u0000 ligands in aqueous medium. The complexes were stable indefinitely with excellent\u0000 yields and were characterized using spectroscopic and single crystal XRD techniques.\u0000 FTIR spectroscopy revealed the bridging bidentate coordination mode for the\u0000 carboxylate moiety in accordance to the actual structure revealed by XRD. Moreover,\u0000 UV-Visible spectroscopic and cyclic voltammetric studies helped in their\u0000 characterization and yielded signals which were typical of the copper(II) complexes.\u0000 Successfully solved single crystal XRD data showed binuclear paddlewheel structures\u0000 for all the complexes with both copper ions linked through four OCO bridges of\u0000 ortho-methoxy phenyl acetate (<b>1</b>–<b>3</b>) and ortho-methyl-meta-nitrophenyl acetate (<b>4</b>). The geometry around each copper was distorted square\u0000 pyramidal where the apical positions are occupied by meta-bromopyridine (<b>1</b>), meta-methylpyridine (<b>2</b>) and DMSO (<b>3</b> and <b>4</b>) molecules. The complexes exhibited excellent\u0000 DNA-binding activity majorly via intercalation as revealed by four experimental\u0000 techniques. This preliminary study showed that the synthesized complexes add to the\u0000 existing treasury on the paddlewheel complexes.</p><h3>The Index Abstract</h3><p>Air stable newly synthesized and purified crystalline complexes\u0000 with their preliminary structural relevance.</p>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":615,"journal":{"name":"Journal of Chemical Crystallography","volume":"54 3","pages":"261 - 273"},"PeriodicalIF":0.4,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141169699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Crystal Structure of 2-(Ethoxymethylene)Malononitrile, Hirshfeld Surface Analysis and DFT Evaluation of the Non-covalent Interactions Energy 2-(乙氧基亚甲基)丙二腈的晶体结构、Hirshfeld 表面分析和非共价相互作用能量的 DFT 评估
IF 0.4 4区 化学
Journal of Chemical Crystallography Pub Date : 2024-05-18 DOI: 10.1007/s10870-024-01019-0
Vyacheslav S. Grinev, Ilya A. Demeshko, Anna E. Sklyar, Maksim V. Dmitriev, Alevtina Yu. Yegorova
{"title":"Crystal Structure of 2-(Ethoxymethylene)Malononitrile, Hirshfeld Surface Analysis and DFT Evaluation of the Non-covalent Interactions Energy","authors":"Vyacheslav S. Grinev,&nbsp;Ilya A. Demeshko,&nbsp;Anna E. Sklyar,&nbsp;Maksim V. Dmitriev,&nbsp;Alevtina Yu. Yegorova","doi":"10.1007/s10870-024-01019-0","DOIUrl":"10.1007/s10870-024-01019-0","url":null,"abstract":"<div><p>The presented study describe the crystal structure of 2-(Ethoxymethylene)malononitrile (<b>1</b>), C<sub>6</sub>H<sub>6</sub>N<sub>2</sub>O, in the monoclinic space group <i>P</i>2<sub>1</sub>/<i>m</i> with <i>Z</i> = 2, <i>a</i> = 6.798(3), <i>b</i> = 6.172(3), <i>c</i> = 8.844(5) Å. The unit cell of a single crystal of <b>1</b> contains two antiparallel oriented molecules. Ethyl fragment demonstrates a disorder with equal occupancy values of 0.5 and a total site-occupation factor (s.o.f.) of 1.0. The molecules of <b>1</b> are linked into infinite chains of co-oriented molecules parallel to the <i>a</i> axis via N-H···N ≡ C close contacts with the distance of 2.494(3) Å. There are also weak hydrogen bonds &gt; O···H- between the oxygen atom and the ethyl moiety. The estimation of the energy of non-covalent interactions was conducted by DFT method with different functionals. The best reproducibility of the geometric parameters of those interactions was obtained by using M06-2X functional. The estimated energy value was found to be − 1.20 kcal/mol.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":615,"journal":{"name":"Journal of Chemical Crystallography","volume":"54 3","pages":"253 - 260"},"PeriodicalIF":0.4,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141061954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Interplay Between Conformation and Hydrogen Bond Pattern: Crystal Structure of N-(2,2-dichloroacetyl)-N',N"-dipropylphosphoric Triamide and a Database Survey 构象与氢键模式之间的相互作用:N-(2,2-二氯乙酰基)-N',N"-二丙基磷酸三酰胺的晶体结构和数据库调查
IF 0.4 4区 化学
Journal of Chemical Crystallography Pub Date : 2024-05-15 DOI: 10.1007/s10870-024-01015-4
Narjess Peyman, Mehrdad Pourayoubi, Ehteram Mohammadi Gooshki, Marek Nečas
{"title":"Interplay Between Conformation and Hydrogen Bond Pattern: Crystal Structure of N-(2,2-dichloroacetyl)-N',N\"-dipropylphosphoric Triamide and a Database Survey","authors":"Narjess Peyman,&nbsp;Mehrdad Pourayoubi,&nbsp;Ehteram Mohammadi Gooshki,&nbsp;Marek Nečas","doi":"10.1007/s10870-024-01015-4","DOIUrl":"10.1007/s10870-024-01015-4","url":null,"abstract":"<div><p>The interplay between conformation and hydrogen bond pattern was studied in 211 (C(O)NH)(N)<sub>2</sub>P(O)-based phosphoric triamides retrieved from the Cambridge Structural Database (CSD) and one new molecular structure, (CHCl<sub>2</sub>C(O)NH)(CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>NH)<sub>2</sub>P(O). The O═C–N–P and C–N–P═O torsion angles were extracted for the conformational study of the C(O)NP(O) segment, and the conformations of ±<i>sp</i>±<i>ap</i>, ±<i>sp</i>±<i>sc</i> and ±<i>ap</i>±<i>sp</i> were found (<i>sp</i> = synperiplanar, <i>ap</i> = antiperiplanar, <i>sc</i> = synclinal). The conformations of hydrogen bond donor group(s) with respect to the acceptor group(s) were also considered. The investigated structures belong to three classes of (RC(O)NH)(R<sup>1</sup>R<sup>2</sup>N)<sub>2</sub>P(O) (R<sup>1</sup> and R<sup>2</sup> ≠ H), (RC(O)NH)(R<sup>1</sup>NH)<sub>2</sub>P(O) (R<sup>1</sup> ≠ H) and heterocyclic (RC(O)NH)P(O)[NR<sup>1</sup>]<sub>2</sub>R<sup>2</sup> phosphoric triamides (R<sup>1</sup> = H or ≠ H, R<sup>2</sup> = a hydrocarbon fragment), and the hydrogen bond patterns include dimer, tetramer, chain, tape, ladder, two-dimensional assembly and three-dimensional architecture. In the new structure, the conformation of the C(O)NP(O) fragment is <i>–sp+ap</i>, and molecules are assembled in a tape arrangement (parallel to the [110] axis) through N<sub>CP</sub>–H···O═P and N<sub>P</sub>–H···O═C hydrogen bonds (N<sub>CP</sub> is the nitrogen atom of the C(O)NHP(O) fragment and N<sub>P</sub> is the other N atom bonded to phosphorus).</p><h3>Graphical Abstract</h3><p>The interplay between conformation and hydrogen bond pattern was studied in 211 (C(O)NH)(N)<sub>2</sub>P(O)-based phosphoric triamides retrieved from the Cambridge Structural Database (CSD) and one new structure, (CHCl<sub>2</sub>C(O)NH)(CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>NH)<sub>2</sub>P(O).</p>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":615,"journal":{"name":"Journal of Chemical Crystallography","volume":"54 3","pages":"242 - 252"},"PeriodicalIF":0.4,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140974106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis, Crystal Structure and Circular Dichroism Property of a Homochiral Ni-MOF Based on D-Camphorate-Derived Enantiopure Ligand 基于樟脑衍生的对映体纯配体的同手性 Ni-MOF 的合成、晶体结构和圆二色性
IF 0.4 4区 化学
Journal of Chemical Crystallography Pub Date : 2024-05-08 DOI: 10.1007/s10870-024-01017-2
Mengying Liu, Mingyuan Lei, Yang Shi, Qingfu Zhang
{"title":"Synthesis, Crystal Structure and Circular Dichroism Property of a Homochiral Ni-MOF Based on D-Camphorate-Derived Enantiopure Ligand","authors":"Mengying Liu,&nbsp;Mingyuan Lei,&nbsp;Yang Shi,&nbsp;Qingfu Zhang","doi":"10.1007/s10870-024-01017-2","DOIUrl":"10.1007/s10870-024-01017-2","url":null,"abstract":"<div><p>A homochiral metal-organic framework, [Ni(D-L)(py)<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>]<sub>n</sub> (<b>1</b>) [D-H<sub>2</sub>L = 4,4′-[[(1<i>R</i>,3<i>S</i>)-1,2,2-trimethylcyclopentane-1,3-dicarbonyl]bis-(azanediyl)]dibenzoic acid], has been successfully synthesized based on D-camphorate-derived enantiopure ligand. <b>1</b> was characterized by single-crystal X-ray diffraction (SCXRD), powder X-ray diffraction (PXRD), Fourier transform infrared spectral analysis (FTIR), thermogravimetric analysis (TGA) and the circular dichroism (CD) spectrum. The experimental results show that <b>1</b> features a homochiral triple helix and is formed a 3D supramolecular framework by supramolecular interactions. In addition, the circular dichroism (CD) spectrum verifies the chirality introduction from the ligand to crystal. The successful preparation of the homochiral Ni-MOF provides more possibilities of employing the chiral ligand to produce various chiral MOFs.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div><div><p>A homochiral Ni(II)-MOF <b>1</b> was prepared by using D-camphorate-derived enantiopure ligand under solvothermal condition, in which the chirality of <b>1</b> was confirmed by the circular dichroism (CD) spectrum</p></div></div></figure></div></div>","PeriodicalId":615,"journal":{"name":"Journal of Chemical Crystallography","volume":"54 3","pages":"234 - 241"},"PeriodicalIF":0.4,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140933073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis, Crystal Structure, Hirshfeld Surface and Computational Analysis of Bis-[2-(3,4-dihydroxyphenyl)-4,5-diphenyl-1H-imidazol-3-ium] Oxalate Ethanol Solvate 双-[2-(3,4-二羟基苯基)-4,5-二苯基-1H-咪唑-3-鎓]草酸盐乙醇溶液的合成、晶体结构、Hirshfeld 表面和计算分析
IF 0.4 4区 化学
Journal of Chemical Crystallography Pub Date : 2024-05-05 DOI: 10.1007/s10870-024-01016-3
Peter Solo, M. Arockia doss
{"title":"Synthesis, Crystal Structure, Hirshfeld Surface and Computational Analysis of Bis-[2-(3,4-dihydroxyphenyl)-4,5-diphenyl-1H-imidazol-3-ium] Oxalate Ethanol Solvate","authors":"Peter Solo,&nbsp;M. Arockia doss","doi":"10.1007/s10870-024-01016-3","DOIUrl":"10.1007/s10870-024-01016-3","url":null,"abstract":"<div><p>Bis-[2-(3,4-dihydroxyphenyl)-4,5-diphenyl-1H-imidazol-3-ium] Oxalate ethanol solvate crystal has been isolated from slow solvent evaporation method and the structure was characterized by FT-IR, NMR and Single crystal XRD. The compound crystallizes in the triclinic space group P <span>(overline{1 })</span> with a = 7.7925(16), b = 10.716(3), c = 13.952(3), α = 106.545(5), β = 97.514(5), γ = 110.152(5), V = 1014.0(4) Å3 and Z = 1. The single crystal X-ray data of the compound confirms two proton transfers from an oxalic acid to the pyrimidine-type-nitrogen of two separate imidazole rings. The structure and symmetry of the Imidazolium Oxalate is dictated by N–H⋯O and O–H⋯O hydrogen bonding interactions and are confirmed by hydrogen bonding analysis and hirshfeld surface analysis. The partial double bond character in the imidazolium ring confirms delocalization across the molecular framework. The partial double bond character of the C–O bonds also confirms delocalization in the oxalate anion. The crystal is 3-dimensional structure, with crystal growth in all the crystallographic axis. Computational analysis [DFT, B3LYP/6-311G(d,p)] reveals close correlation of the constrained optimized structure with the experimental data.</p><h3>Graphical Abstract</h3><p>Imidazolium oxalate crystal form by the protonation of Imidazole compound and complex formation with oxalate ion.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":615,"journal":{"name":"Journal of Chemical Crystallography","volume":"54 3","pages":"225 - 233"},"PeriodicalIF":0.4,"publicationDate":"2024-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140882133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Three 3D Supramolecular Organic Salts Assembled from Melamine and Aliphatic Carboxylic Acids: Preparation, Crystallographic Characterization, and Hirshfeld Surface Analysis 由三聚氰胺和脂肪族羧酸组装而成的三种三维超分子有机盐:制备、晶体表征和希尔施菲尔德表面分析
IF 0.4 4区 化学
Journal of Chemical Crystallography Pub Date : 2024-04-12 DOI: 10.1007/s10870-024-01014-5
Zhaozhi Li, Xuele Lin, Xingjun Gao, Shouwen Jin, Xusen Gong, Daqi Wang
{"title":"Three 3D Supramolecular Organic Salts Assembled from Melamine and Aliphatic Carboxylic Acids: Preparation, Crystallographic Characterization, and Hirshfeld Surface Analysis","authors":"Zhaozhi Li,&nbsp;Xuele Lin,&nbsp;Xingjun Gao,&nbsp;Shouwen Jin,&nbsp;Xusen Gong,&nbsp;Daqi Wang","doi":"10.1007/s10870-024-01014-5","DOIUrl":"10.1007/s10870-024-01014-5","url":null,"abstract":"<div><p>Three crystalline organic salts (melamine)<sub>2</sub>: (itaconic acid): 3H<sub>2</sub>O [(Hmem)<sub>2</sub><sup>2+</sup>·(itca<sup>2−</sup>)·(H<sub>2</sub>O)<sub>3</sub>, itca<sup>2−</sup> = itaconate] <b>(1)</b>, (melamine)<sub>2</sub>:(2-bromo-but-2-enedioic acid):DMF:2H<sub>2</sub>O [(Hmem<sup>+</sup>)<sub>2</sub>·(bbda<sup>2−</sup>)·DMF·(H<sub>2</sub>O)<sub>2</sub>, bbda<sup>2−</sup> = 2-bromo-but-2-enedioate] <b>(2)</b> and (melamine):(α-ketoglutaric acid) [(Hmem<sup>+</sup>)·(Hketglua<sup>−</sup>), Hketglua<sup>−</sup> = hydrogen α-ketoglutarate] <b>(3)</b> were featured by X-ray diffraction analysis, IR, mp, and elemental analysis. Significant non-covalent interactions were calculated by means of the Hirshfeld surface analysis. All salts involve extensive N–H···OH-bonds as well as other non-covalent associations. The melamine polymers/dimers were set up at <b>1</b>–<b>2</b>/<b>3</b> by the pair of complmentary N–H···NH-bonds. The role of these non-covalent interactions in the crystal packing is ascertained. These weak interactions combined, all salts exhibited 3D framework motifs.</p><h3>Graphical Abstract</h3><p>The crystal structures of the salts from melamine, itaconic acid, 2-bromo-but-2-enedioic acid and α-ketoglutaric acid are predominantly stabilized by the classical hydrogen bonds as well as CH2···O, CH3···O, Br···Br, C···C, O···C, and π···π interactions.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":615,"journal":{"name":"Journal of Chemical Crystallography","volume":"54 3","pages":"209 - 224"},"PeriodicalIF":0.4,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140568720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structural Origins of the Anisotropic Thermal Expansion of BINOL Crystals BINOL 晶体各向异性热膨胀的结构起源
IF 0.4 4区 化学
Journal of Chemical Crystallography Pub Date : 2024-04-08 DOI: 10.1007/s10870-024-01013-6
Paul G. Waddell
{"title":"Structural Origins of the Anisotropic Thermal Expansion of BINOL Crystals","authors":"Paul G. Waddell","doi":"10.1007/s10870-024-01013-6","DOIUrl":"10.1007/s10870-024-01013-6","url":null,"abstract":"<div><p>Measurement of the unit cell of (R)-BINOL over a 200° temperature range (300–100 K) reveals an anisotropic contraction where the c-axis contracts <i>ca.</i> 2.3% compared to a <i>ca.</i> 0.45% contraction of the a and b axes, a <i>ca.</i> six-fold difference in linear thermal expansion coefficient. This contraction corresponds to a decrease in the helical pitch of the 3<sub>1</sub> screw axis in the [001] direction. The anisotropic nature of the contraction is rationalised by a thorough analysis of intermolecular contacts within the crystal and their impact on the conformation of the molecule and crystal packing.</p><h3>Graphical Abstract</h3><p>The crystal structure of (R)-BINOL exhibits a pronounced anisotropic thermal expansion.</p>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":615,"journal":{"name":"Journal of Chemical Crystallography","volume":"54 3","pages":"203 - 208"},"PeriodicalIF":0.4,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10870-024-01013-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140568650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and Crystal Structure of a Chelating N-Heterocyclic Carbene Palladium Complex Containing N-(3-Bromopropyl)-N’-thioether di-functionalized Imidazol-2-ylidene 含 N-(3-溴丙基)-N'-硫醚二官能化咪唑-2-亚基的 N-杂环羰基钯螯合物的合成及其晶体结构
IF 0.4 4区 化学
Journal of Chemical Crystallography Pub Date : 2024-04-08 DOI: 10.1007/s10870-024-01012-7
Yongmei Xiao, Yaowen Liu, Liangru Yang, Yingjun Wang, Jinwei Yuan, Lingbo Qu
{"title":"Synthesis and Crystal Structure of a Chelating N-Heterocyclic Carbene Palladium Complex Containing N-(3-Bromopropyl)-N’-thioether di-functionalized Imidazol-2-ylidene","authors":"Yongmei Xiao,&nbsp;Yaowen Liu,&nbsp;Liangru Yang,&nbsp;Yingjun Wang,&nbsp;Jinwei Yuan,&nbsp;Lingbo Qu","doi":"10.1007/s10870-024-01012-7","DOIUrl":"10.1007/s10870-024-01012-7","url":null,"abstract":"<div><p>A chelating <i>N</i>-heterocyclic carbene palladium complex (<b>3</b>) containing <i>N</i>-(3-bromopropyl)-<i>N’</i>-thioether di-functionalized imidazol-2-ylidene was synthesized by the direct metalation of <i>N</i>-(3-bromopropyl)-<i>N’</i>-thioether di-functionalized imidazolium bromide (<b>2</b>) with Pd(OAc)<sub>2</sub> in the presence of NaOAc and NaBr at room temperature using CH<sub>2</sub>Cl<sub>2</sub> as solvent. The structure was characterized by NMR, HR-MS and X-ray crystallography. The results showed that complex <b>3</b> consists of two independent molecules with configuration of <i>S</i><sub>C</sub>, <i>R</i><sub>S</sub> in molecule a, and <i>S</i><sub>C</sub>, S<sub>S</sub> in molecule b, respectively. The crystal is triclinic, P1 space group, with a = 8.4815(3), b = 8.6338(3), c = 19.2371(7) Å, V = 1245.66(8) Å<sup>3</sup>, and Z = 2 (at 293(2)K).</p><h3>Graphical Abstract</h3><p>A chelating <i>N</i>-heterocyclic carbene palladium complex (<b>3</b>) consists of two independent molecules with configurations of <i>S</i><sub>C</sub>, <i>R</i><sub>S</sub> and <i>S</i><sub>C</sub>, S<sub>S</sub> respectively has been synthesized through the direct metalation of the precursor imidazolium bromide (<b>2</b>).</p>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":615,"journal":{"name":"Journal of Chemical Crystallography","volume":"54 3","pages":"197 - 202"},"PeriodicalIF":0.4,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140569214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis, Crystal Structure, Spectral (IR, NMR), and Computational Analysis of 2,4-Dibromo-6-(1H-Phenanthro[9,10-d]Imidazol-2-yl)Phenol as Charge-Transport System 作为电荷传输系统的 2,4-二溴-6-(1H-菲并[9,10-d]咪唑-2-基)苯酚的合成、晶体结构、光谱(红外光谱、核磁共振)和计算分析
IF 0.4 4区 化学
Journal of Chemical Crystallography Pub Date : 2024-04-05 DOI: 10.1007/s10870-024-01011-8
Peter Solo, M. Arockia Doss
{"title":"Synthesis, Crystal Structure, Spectral (IR, NMR), and Computational Analysis of 2,4-Dibromo-6-(1H-Phenanthro[9,10-d]Imidazol-2-yl)Phenol as Charge-Transport System","authors":"Peter Solo,&nbsp;M. Arockia Doss","doi":"10.1007/s10870-024-01011-8","DOIUrl":"10.1007/s10870-024-01011-8","url":null,"abstract":"<div><p>A novel 2,4-dibromo-6-(1H-phenanthro[9,10-d]imidazol-2-yl)phenol crystal has been reported and characterized by FT-IR, <sup>1</sup>H NMR, <sup>13</sup>C NMR. Single crystal XRD studies reveals that the compound crystalizes into triclinic crystal system with P-1 space group, and crystallographic data has been deposited in the Cambridge crystallographic data center with CCDC Number: 2246180. Various computational analysis like, Hydrogen bond analysis, Molecular electrostatic potential analysis, Natural population analysis, hirshfeld surface, and Frontier molecular orbital analysis were performed to elucidate the structure of the crystal. Marcus-Hus semiclassical model for charge transfer in organic materials is applied for the calculation of charge transfer rate. The calculation of reorganization energy and coupling constant reveals that the compound could be investigated as hole transport material.</p><h3>Graphical Abstract</h3><p>Synthesis, characterization, and computational analysis of Imidazole-based Organic crystals as charge transport material.</p>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":615,"journal":{"name":"Journal of Chemical Crystallography","volume":"54 2","pages":"183 - 196"},"PeriodicalIF":0.4,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140568806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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