Acta Crystallographica Section C Structural Chemistry最新文献

筛选
英文 中文
Studies of κ2- and κ3-tripyridylamine complexes of ruthenium and π-stacking by pyridyls. κ2-和κ3-三吡啶胺钌配合物与吡啶基π-堆积的研究。
IF 0.8 4区 化学
Acta Crystallographica Section C Structural Chemistry Pub Date : 2023-12-01 Epub Date: 2023-11-06 DOI: 10.1107/S2053229623009415
Jack Faller, Kevin J Chase, Jonathan Parr, Brandon Mercado
{"title":"Studies of κ<sup>2</sup>- and κ<sup>3</sup>-tripyridylamine complexes of ruthenium and π-stacking by pyridyls.","authors":"Jack Faller, Kevin J Chase, Jonathan Parr, Brandon Mercado","doi":"10.1107/S2053229623009415","DOIUrl":"10.1107/S2053229623009415","url":null,"abstract":"<p><p>The reaction of tris(pyridin-2-yl)amine with [CyRuCl<sub>2</sub>]<sub>2</sub> (Cy = p-isopropyltoluene or cymene) in refluxing diglyme led to the formation of cis-[RuCl<sub>2</sub>{κ<sup>2</sup>-(2-py)<sub>3</sub>N}<sub>2</sub>]·CHCl<sub>3</sub> (1a) after recrystallization from chloroform/pentane, or cis-dichloridobis[tris(pyridin-2-yl)amine-κ<sup>2</sup>N,N']ruthenium(II) dichloromethane disolvate, [RuCl<sub>2</sub>(C<sub>15</sub>H<sub>12</sub>N<sub>4</sub>)<sub>2</sub>]·2CH<sub>2</sub>Cl<sub>2</sub> or cis-[RuCl<sub>2</sub>{κ<sup>2</sup>-(2-py)<sub>3</sub>N}<sub>2</sub>]·2CH<sub>2</sub>Cl<sub>2</sub> (1b). Treatment of 1a with one equivalent of silver(I) hexafluoridoantimonate in dichloromethane gave [RuCl{κ<sup>2</sup>-(2-py)<sub>3</sub>N}{κ<sup>3</sup>-(2-py)<sub>3</sub>N}][SbF<sub>6</sub>]·CH<sub>2</sub>Cl<sub>2</sub> (2a). Crystallization of 2a from chloroform provided chlorido[tris(pyridin-2-yl)amine-κ<sup>2</sup>N,N'][tris(pyridin-2-yl)amine-κ<sup>3</sup>N,N',N'']ruthenium(II) hexafluoridoantimonate chloroform monosolvate, [RuCl(C<sub>15</sub>H<sub>12</sub>N<sub>4</sub>)<sub>2</sub>][SbF<sub>6</sub>]·CHCl<sub>3</sub> or [RuCl{κ<sup>2</sup>-(2-py)<sub>3</sub>N}{κ<sup>3</sup>-(2-py)<sub>3</sub>N}][SbF<sub>6</sub>]·CHCl<sub>3</sub> (2b). Complex 2a reacted with a further equivalent of silver(I) hexafluoridoantimonate to give [Ru{κ<sup>3</sup>-(2-py)<sub>3</sub>N}<sub>2</sub>][SbF<sub>6</sub>]<sub>2</sub> (3). The reaction of (2-py)<sub>3</sub>N with [CyRuCl<sub>2</sub>]<sub>2</sub> in dichloromethane followed by treatment with excess sodium hexafluoridoantimonate gave the known complex [CyRuCl{κ<sup>2</sup>-(2-py)<sub>3</sub>N}][SbF<sub>6</sub>] (4). Complex 2 is a rare example of a complex containing both κ<sup>2</sup>- and κ<sup>3</sup>-(2-py)<sub>3</sub>N. Intramolecular π-stacking interactions determine the orientation of the free pyridyl in the κ<sup>2</sup> complexes. An interesting encapsulation of methylene chloride hydrogen-bonded tetramers was noted in one case.</p>","PeriodicalId":7115,"journal":{"name":"Acta Crystallographica Section C Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71476856","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
Proton tautomerism and stereoisomerism in 5-[(dimethylamino)methylidene]-4-[3/4-(trifluoromethylphenyl)amino]-1,3-thiazol-2(5H)-ones: synthesis, crystal structure and spectroscopic studies. 5-[(二甲基氨基)亚甲基]-4-[3/4-(三氟甲基苯基)氨基]-1,3-噻唑-2(5H)-酮的质子互变异构和立体异构:合成、晶体结构和光谱研究。
IF 0.8 4区 化学
Acta Crystallographica Section C Structural Chemistry Pub Date : 2023-11-01 Epub Date: 2023-10-24 DOI: 10.1107/S2053229623009087
Andrii Pyrih, Andrzej Łapiński, Sylwia Zięba, Adam Mizera, Roman Lesyk, Andrzej K Gzella, Mariusz Jaskolski
{"title":"Proton tautomerism and stereoisomerism in 5-[(dimethylamino)methylidene]-4-[3/4-(trifluoromethylphenyl)amino]-1,3-thiazol-2(5H)-ones: synthesis, crystal structure and spectroscopic studies.","authors":"Andrii Pyrih,&nbsp;Andrzej Łapiński,&nbsp;Sylwia Zięba,&nbsp;Adam Mizera,&nbsp;Roman Lesyk,&nbsp;Andrzej K Gzella,&nbsp;Mariusz Jaskolski","doi":"10.1107/S2053229623009087","DOIUrl":"10.1107/S2053229623009087","url":null,"abstract":"<p><p>5-[(Dimethylamino)methylidene]-4-{[3-(trifluoromethyl)phenyl]amino}-1,3-thiazol-2(5H)-one and the [4-(trifluoromethyl)phenyl]amino derivative, both C<sub>13</sub>H<sub>12</sub>F<sub>3</sub>N<sub>3</sub>OS, with the trifluoromethyl group substituted at the arene ring at the meta and para positions, were synthesized to study the structural changes associated with proton tautomerism of the amidine system. The studied compounds were found to be in the amine tautomeric form in both the solid and the liquid (dimethyl sulfoxide solutions) phase. In both isomers, the [(trifluoromethyl)phenyl]amino residue assumes a synperiplanar conformation with respect to the thiazolone system, while the 5-[(dimethylamino)methylidene] residue adopts the Z configuration. Density functional theory (DFT) calculations correctly predicted that the synperiplanar arrangement is favoured in both isomers. In the crystal, the whole independent molecule of the para compound is disordered over two alternative positions, with occupancy factors of 0.926 (3) and 0.074 (3).</p>","PeriodicalId":7115,"journal":{"name":"Acta Crystallographica Section C Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49688250","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 and synthesis of the bis(anthracene)dicuprate dianion as the dipotassium salt, [K(tetrahydrofuran)2]2[{Cu(9,10-η2-anthracene)}2], the first anionic arene complex of copper. 铜的第一个阴离子芳烃配合物[K(四氢呋喃)2]2{Cu(9,10-η2-蒽)}2]的晶体结构和合成。
IF 0.8 4区 化学
Acta Crystallographica Section C Structural Chemistry Pub Date : 2023-11-01 Epub Date: 2023-10-03 DOI: 10.1107/S2053229623008367
Victor G Young, William W Brennessel, John E Ellis
{"title":"Crystal structure and synthesis of the bis(anthracene)dicuprate dianion as the dipotassium salt, [K(tetrahydrofuran)<sub>2</sub>]<sub>2</sub>[{Cu(9,10-η<sup>2</sup>-anthracene)}<sub>2</sub>], the first anionic arene complex of copper.","authors":"Victor G Young,&nbsp;William W Brennessel,&nbsp;John E Ellis","doi":"10.1107/S2053229623008367","DOIUrl":"10.1107/S2053229623008367","url":null,"abstract":"<p><p>Reactions of (tricyclohexylphosphane)copper(I) chloride with two equivalents of potassium anthracene (KAn) in tetrahydrofuran (THF) at 200 K provides air-sensitive but thermally stable (at 293 K) solutions from which yellow crystalline blocks of bis[bis(tetrahydrofuran-κO)potassium] bis(μ-anthracene-κ<sup>2</sup>C<sup>9</sup>:C<sup>10</sup>)dicopper, [K(THF)<sub>2</sub>]<sub>2</sub>[{Cu(9,10-η<sup>2</sup>-C<sub>14</sub>H<sub>10</sub>)}<sub>2</sub>] or [K(C<sub>4</sub>H<sub>8</sub>O)<sub>2</sub>]<sub>2</sub>[Cu<sub>2</sub>(C<sub>14</sub>H<sub>10</sub>)<sub>2</sub>], 1, were isolated in about 50% yield. Single-crystal X-ray crystallographic analysis of 1 confirmed the presence of the first known (arene)cuprate. Also, unlike all previously known homoleptic (anthracene)metallates of d-block elements, which contain metals coordinated only to terminal rings, the organocuprate unit in 1 contains copper bound to the 9,10-carbons of the central ring of anthracene. No other d- or f-block metal is known to afford an anthracene or other aromatic hydrocarbon complex having the architecture of organodicuprate 1.</p>","PeriodicalId":7115,"journal":{"name":"Acta Crystallographica Section C Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10625718/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41099892","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
Perovskite-related structures of Ba2YAlO5 and the β and α phases of Ba6Y2Al4O15 containing AlO4 tetrahedra. Ba2YAlO5的钙钛矿相关结构以及含有AlO4四面体的Ba6Y2Al4O15的β和α相。
IF 0.8 4区 化学
Acta Crystallographica Section C Structural Chemistry Pub Date : 2023-11-01 Epub Date: 2023-10-17 DOI: 10.1107/S2053229623008860
Rayko Simura, Yamato Suzuki, Hisanori Yamane
{"title":"Perovskite-related structures of Ba<sub>2</sub>YAlO<sub>5</sub> and the β and α phases of Ba<sub>6</sub>Y<sub>2</sub>Al<sub>4</sub>O<sub>15</sub> containing AlO<sub>4</sub> tetrahedra.","authors":"Rayko Simura,&nbsp;Yamato Suzuki,&nbsp;Hisanori Yamane","doi":"10.1107/S2053229623008860","DOIUrl":"10.1107/S2053229623008860","url":null,"abstract":"<p><p>Single crystals of Ba<sub>2</sub>YAlO<sub>5</sub> and of the α and β phases of Ba<sub>6</sub>Y<sub>2</sub>Al<sub>4</sub>O<sub>15</sub> suitable for X-ray structure analysis were obtained via grain growth of polycrystalline samples prepared by solid-state reactions. Ba<sub>2</sub>YAlO<sub>5</sub> was found to have a monoclinic crystal structure, with lattice parameters a = 7.2333 (7), b = 6.0254 (5), c = 7.4294 (7) Å and β = 117.249 (3)°, and to belong to the space group P2<sub>1</sub>/m, while α-Ba<sub>6</sub>Y<sub>2</sub>Al<sub>4</sub>O<sub>15</sub> was determined to be monoclinic, with a = 5.9019 (2), b = 7.8744 (3), c = 9.6538 (3) Å and β = 107.7940 (10)°, and the space group Pm, and β-Ba<sub>6</sub>Y<sub>2</sub>Al<sub>4</sub>O<sub>15</sub> was found to be monoclinic, with a = 7.8310 (2), b = 5.8990 (2), c = 18.3344 (6) Å and β = 91.6065 (11)°, and the space group P2/c. In each of these compounds, BO<sub>6</sub> octahedra in ABO<sub>3</sub> perovskite-type structures were replaced by AlO<sub>4</sub> tetrahedra and YO<sub>6</sub> octahedra. Polycrystalline samples in which some Y atoms were replaced with Eu exhibited orange-red luminescence in the range 580-730 nm in response to exposure to radiation having a wavelength of approximately 250 nm.</p>","PeriodicalId":7115,"journal":{"name":"Acta Crystallographica Section C Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41231556","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
Crystallographic, spectroscopic and thermal studies of 1-(4-bromophenyl)-5-(2,5-dimethyl-1H-pyrrol-1-yl)-3-methyl-1H-pyrazole. 1-(4-溴苯基)-5-(2,5-二甲基-1H-吡咯-1-基)-3-甲基-1H-吡唑的晶体学、光谱和热学研究。
IF 0.8 4区 化学
Acta Crystallographica Section C Structural Chemistry Pub Date : 2023-11-01 Epub Date: 2023-10-24 DOI: 10.1107/S2053229623009221
Erika Moreno-Suárez, Rafael Avila-Acosta, Karen Sánchez-Ramírez, Juan Carlos Castillo, Mario A Macías
{"title":"Crystallographic, spectroscopic and thermal studies of 1-(4-bromophenyl)-5-(2,5-dimethyl-1H-pyrrol-1-yl)-3-methyl-1H-pyrazole.","authors":"Erika Moreno-Suárez,&nbsp;Rafael Avila-Acosta,&nbsp;Karen Sánchez-Ramírez,&nbsp;Juan Carlos Castillo,&nbsp;Mario A Macías","doi":"10.1107/S2053229623009221","DOIUrl":"10.1107/S2053229623009221","url":null,"abstract":"The new title pyrrole-pyrazole derivative, C16H16BrN3, was synthesized through a citric acid-catalyzed Paal-Knorr reaction between acetonylacetone and 1-(4-bromophenyl)-3-methyl-1H-pyrazol-5-amine under mild reaction conditions. This synthetic protocol is noteworthy for its utilization of stoichiometric amounts of the reactants, an ecofriendly solvent and a cost-effective, non-toxic and biodegradable organocatalyst. A comprehensive understanding of the molecular structure was gained through spectroscopic, thermal and X-ray crystallographic analyses. The crystal structure is characterized by weak interactions, where only C-H...π connections contribute to the hydrogen-bond contacts. The supramolecular assembly is controlled by dispersion forces. However, the energy frameworks demonstrate that these forces act in three dimensions, providing enough stability, as observed in TGA-DSC (thermogravimetric analysis-differential scanning calorimetry) studies.","PeriodicalId":7115,"journal":{"name":"Acta Crystallographica Section C Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49688248","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
Mythical compounds. 神话化合物。
IF 0.8 4区 化学
Acta Crystallographica Section C Structural Chemistry Pub Date : 2023-11-01 Epub Date: 2023-10-24 DOI: 10.1107/S205322962300791X
Phillip E Fanwick
{"title":"Mythical compounds.","authors":"Phillip E Fanwick","doi":"10.1107/S205322962300791X","DOIUrl":"10.1107/S205322962300791X","url":null,"abstract":"<p><p>There is a need for validation methods to ensure the quality and consistency of reported data, but a recent article by Raymond and Girolami [Acta Cryst. (2023), C79, https://doi.org/10.1107/S2053229623007088] will alert chemists, crystallographers, referees, and editors to not always trust the crystal structure but also to ensure that the chemistry is consistent with previous chemistry.</p>","PeriodicalId":7115,"journal":{"name":"Acta Crystallographica Section C Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10625716/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49688249","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
Pathological crystal structures. 病理性晶体结构。
IF 0.8 4区 化学
Acta Crystallographica Section C Structural Chemistry Pub Date : 2023-11-01 Epub Date: 2023-10-24 DOI: 10.1107/S2053229623007088
Kenneth N Raymond, Gregory S Girolami
{"title":"Pathological crystal structures.","authors":"Kenneth N Raymond,&nbsp;Gregory S Girolami","doi":"10.1107/S2053229623007088","DOIUrl":"10.1107/S2053229623007088","url":null,"abstract":"<p><p>Recent decades have seen enormous changes in the technology of crystal structure analysis, but the interpretation of these data still depends on human judgment, and errors are far from uncommon. Although analysing the crystallographic results with available software tools can catch many types of errors, others can be detected only by combining knowledge of both crystallography and chemistry. We discuss several such examples from the published literature, and for each of them we identify what lessons they teach us. The examples are categorized by the type of error: correct crystallography but incorrect chemistry, mis-assignment of atoms, high-symmetry superstructures with included guest molecules, incorrect choice of space group, incorrect choice of unit-cell size, and unresolved problems. These examples are intended to counteract the aura of infallibility that crystal structures sometimes assume and to alert the reader to features to look for in detecting pathological structures.</p>","PeriodicalId":7115,"journal":{"name":"Acta Crystallographica Section C Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10625717/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10522502","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
Two new bismuth salts with succinic acid: synthesis, structural, spectroscopic and thermal characterization. 两种新的琥珀酸铋盐:合成、结构、光谱和热表征。
IF 0.8 4区 化学
Acta Crystallographica Section C Structural Chemistry Pub Date : 2023-10-01 Epub Date: 2023-09-21 DOI: 10.1107/S2053229623008124
Evgeniya V Timakova, Liubov I Afonina, Tatiana N Drebushchak, Boris A Zakharov
{"title":"Two new bismuth salts with succinic acid: synthesis, structural, spectroscopic and thermal characterization.","authors":"Evgeniya V Timakova,&nbsp;Liubov I Afonina,&nbsp;Tatiana N Drebushchak,&nbsp;Boris A Zakharov","doi":"10.1107/S2053229623008124","DOIUrl":"https://doi.org/10.1107/S2053229623008124","url":null,"abstract":"<p><p>Two novel bismuth succinate hydrates, namely, poly[[diaqua(μ<sub>3</sub>-butane-1,4-dicarboxylato)hemi(μ-butane-1,4-dicarboxylato)bismuth] monohydrate], {[Bi(C<sub>4</sub>H<sub>4</sub>O<sub>4</sub>)<sub>1.5</sub>(H<sub>2</sub>O)<sub>2</sub>]·H<sub>2</sub>O}<sub>n</sub> (1), and poly[[μ-aqua-aqua(μ<sub>3</sub>-butane-1,4-dicarboxylato)(μ-butane-1,4-dicarboxylato)-μ-oxido-dibismuth] monohydrate], {[Bi<sub>2</sub>(C<sub>4</sub>H<sub>4</sub>O<sub>4</sub>)<sub>2</sub>O(H<sub>2</sub>O)<sub>2</sub>]·H<sub>2</sub>O}<sub>n</sub> (2), have been synthesized. Their crystal structures were determined by single-crystal X-ray diffraction and the compounds were characterized by IR and Raman spectroscopy, powder X-ray diffraction and thermal analysis. The crystal structure analysis revealed that the compounds are coordination polymers, with 1 having a two-dimensional layered structure and 2 displaying a three-dimensional (3D) framework. Fully deprotonated succinate anions (C<sub>4</sub>H<sub>4</sub>O<sub>4</sub><sup>2-</sup>) in two different conformations (trans and gauche) are included in their composition. The Bi<sup>3+</sup> cations are surrounded by O atoms from the carboxylate groups of succinate anions and aqua ligands. BiO<sub>9</sub> coordination polyhedra in 1 are connected in pairs by edges. These pairs are bound together by bridging succinate ligands to form layers. Bismuth coordination polyhedra of two different types (BiO<sub>9</sub> and BiO<sub>7</sub>) in 2 are connected by edges to form infinite ribbons. Ribbons of polyhedra with bridging succinate ligands form a 3D polymeric structure.</p>","PeriodicalId":7115,"journal":{"name":"Acta Crystallographica Section C Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41097557","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
From liquid to crystal via mechanochemical grinding: unique host-guest (HOF) cocrystal. 通过机械化学研磨从液体到晶体:独特的主客体(HOF)共晶。
IF 0.8 4区 化学
Acta Crystallographica Section C Structural Chemistry Pub Date : 2023-10-01 Epub Date: 2023-09-04 DOI: 10.1107/S2053229623007519
Shubham Som, Avantika Hasija, Deepak Chopra
{"title":"From liquid to crystal via mechanochemical grinding: unique host-guest (HOF) cocrystal.","authors":"Shubham Som,&nbsp;Avantika Hasija,&nbsp;Deepak Chopra","doi":"10.1107/S2053229623007519","DOIUrl":"https://doi.org/10.1107/S2053229623007519","url":null,"abstract":"<p><p>Mechanochemical synthesis via grinding of trimesic acid (TA, C<sub>9</sub>H<sub>6</sub>O<sub>6</sub>) and 4-chlorophenyl diphenyl phosphate (4CDP, C<sub>18</sub>H<sub>14</sub>ClO<sub>4</sub>P) (liquid at room temperature) in a 1:1 ratio resulted in the formation of an inclusion type of cocrystal. The crystallization of this phase via slow evaporation at low temperature (276-277 K) from methanol resulted in a rare `stairstep morphology' during the process of crystal growth. This morphology was not observed after crystallization of the compound from other solvents like toluene, dichloromethane, acetone, hexane and isooctane, and hence this was characteristically observed in methanol only. The characterization from single-crystal X-ray diffraction revealed the formation of a cocrystal with five molecules of TA and two molecules of 4CDP in the asymmetric unit. The trimesic acid molecules form hydrogen-bonded dimers resulting in hexagonal rings, and these rings are stacked through π-π intermolecular interactions to make a hexagonal honeycomb-like structure. The phosphate molecules, 4CDP, were found to be trapped as guests in these hexagonal channels. The similarity in the packing of trimesic acid is compared in the cocrystal and the free acid quantitatively via Xpac analysis, which establishes the relationship of a `2D supramolecular construct' between them. This signifies a unique type of arrangement in which the voids created by the trimesic acid moiety do not undergo distortion by the inclusion of the guest molecules. The quantitative analysis of the intermolecular interactions using Hirshfeld surfaces and fingerprint plots deciphers the role of both strong O-H...O hydrogen bonds and weak intermolecular interactions in the crystal packing.</p>","PeriodicalId":7115,"journal":{"name":"Acta Crystallographica Section C Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41101153","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, structures and properties of two donor-acceptor acridone-based compounds. 两种给受体吖啶酮基化合物的合成、结构和性能。
IF 0.8 4区 化学
Acta Crystallographica Section C Structural Chemistry Pub Date : 2023-10-01 Epub Date: 2023-09-21 DOI: 10.1107/S2053229623007994
Ziqiang Chen, Gaojie Xin, Penglian Gao, Yingying Jin
{"title":"Synthesis, structures and properties of two donor-acceptor acridone-based compounds.","authors":"Ziqiang Chen,&nbsp;Gaojie Xin,&nbsp;Penglian Gao,&nbsp;Yingying Jin","doi":"10.1107/S2053229623007994","DOIUrl":"https://doi.org/10.1107/S2053229623007994","url":null,"abstract":"<p><p>Two donor-acceptor acridone-based compounds, namely, 2-{10-[4-(diphenylamino)phenyl]acridin-9-ylidene}malononitrile (TPA-AD-DCN), C<sub>34</sub>H<sub>22</sub>N<sub>4</sub>, and 2-{10-[4-(9H-carbazol-9-yl)phenyl]acridin-9-ylidene}malononitrile (CzPh-AD-DCN), C<sub>34</sub>H<sub>20</sub>N<sub>4</sub>, have been synthesized in high yield and their structures determined. TPA-AD-DCN and CzPh-AD-DCN crystallized in the centrosymmetric space groups P-1 and P2<sub>1</sub>/c, respectively. Both molecules adopt a `butterfly-like' configuration of the common part of the structure and differences occur within the substituents on the acridine N atom. A Hirshfeld surface analysis showed that the H...H and C...H/H...C contacts constitute a high percentage of the intermolecular interactions. The optical and electrochemical properties, as well as theoretical calculations, of TPA-AD-DCN and CzPh-AD-DCN support the structural characterization of these materials. As crystallization-induced emission materials, TPA-AD-DCN and CzPh-AD-DCN are anticipated to be of potential use in the construction of promising optoelectronic materials.</p>","PeriodicalId":7115,"journal":{"name":"Acta Crystallographica Section C Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41106545","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信