Acta Crystallographica Section E: Crystallographic Communications最新文献_第10页

Structure of (E)-4-amino-5-{[(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)imino]methyl}-1-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-one: aerial oxidation of 4-aminoantipyrine in dimethylformamide (E)-4-氨基-5-{[（1,5-二甲基-3-氧-2-苯基-2,3-二氢- 1h -吡唑-4-基）亚胺]-甲基}-1-甲基-2-苯基-2,3-二氢- 1h -吡唑-3-酮的结构：二甲基甲酰胺中4-氨基抗吡啶的航空氧化反应。

IF 0.5

Acta Crystallographica Section E: Crystallographic Communications Pub Date : 2025-05-01 DOI: 10.1107/S2056989025003676

R. Kumaravel , Helen Stoeckli-Evans , A. Subashini , M. G. Shankar , Monika Kučeráková , Michal Dušek , Aurélien Crochet , K. Ramamurthi

{"title":"Structure of (E)-4-amino-5-{[(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)imino]methyl}-1-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-one: aerial oxidation of 4-aminoantipyrine in dimethylformamide","authors":"R. Kumaravel , Helen Stoeckli-Evans , A. Subashini , M. G. Shankar , Monika Kučeráková , Michal Dušek , Aurélien Crochet , K. Ramamurthi","doi":"10.1107/S2056989025003676","DOIUrl":"10.1107/S2056989025003676","url":null,"abstract":"<div><div>The formation of the title compound is best explained by the aerial oxidation of the 5-methyl group of 4-aminoantipyrine to an aldehyde group, and subsequent intermolecular Schiff base formation with a second molecule of 4-aminoantipyrine. The reaction only takes place in the presence of dimethylformamide.</div></div><div><div>The title compound, C22H22N6O2 (I), is the result of the aerial oxidation of the 5-methyl group of 4-aminoantipyrine to an aldehyde group followed by Schiff base formation with a second molecule of 4-aminoantipyrine. The reaction only takes place in the presence of dimethylformamide. The central unit of the molecule is close to planar, the pyrazole rings being inclined to each other by 3.74 (15)°. There is an intramolecular N—H⋯N hydrogen bond enclosing an S(6) ring motif and there are two further S(6) rings involving weak C—H⋯O=C hydrogen bonds. The molecule has an E configuration about the azomethine (—N=CH—) bond. In the crystal, inversion-related molecules are linked by pairs of N—H⋯O hydrogen bonds, forming dimers enclosing R22(10) loops. The dimers are linked by C—H⋯O hydrogen bonds and C—H⋯π interactions, leading to the formation of a three-dimensional supramolecular network.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"81 5","pages":"Pages 438-443"},"PeriodicalIF":0.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143955074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Synthesis and crystal structure of 2-(2,4-dioxo-6-methylpyran-3-ylidene)-4-(4-hydroxyphenyl)-2,3,4,5-tetrahydro-1H-1,5-benzodiazepine 2-（2,4-二氧基-6-甲基吡喃-3-基二烯）-4-（4-羟基苯基）-2,3,4,5-四氢- 1h -1,5-苯二氮杂卓的合成与晶体结构

IF 0.5

Acta Crystallographica Section E: Crystallographic Communications Pub Date : 2025-05-01 DOI: 10.1107/S2056989025003032

Imane Faraj , Lhoussaine El Ghayati , Olivier Blacque , Tuncer Hökelek , Ahmed Mazzah , El Mokhtar Essassi , Nada Kheira Sebbar

{"title":"Synthesis and crystal structure of 2-(2,4-dioxo-6-methylpyran-3-ylidene)-4-(4-hydroxyphenyl)-2,3,4,5-tetrahydro-1H-1,5-benzodiazepine","authors":"Imane Faraj , Lhoussaine El Ghayati , Olivier Blacque , Tuncer Hökelek , Ahmed Mazzah , El Mokhtar Essassi , Nada Kheira Sebbar","doi":"10.1107/S2056989025003032","DOIUrl":"10.1107/S2056989025003032","url":null,"abstract":"<div><div>In the crystal, O—H⋯O and N—H⋯O hydrogen bonds link the molecules, enclosing R22(16) and R22(24) ring motifs, to generate [110] chains. Very weak π–π stacking interactions between the phenyl rings of adjacent molecules help to consolidate a three-dimensional architecture.</div></div><div><div>The title compound, C21H18N2O4, contains non-planar diazepine (in a boat–sofa conformation) and pyran (envelope) rings. In the crystal, O—H⋯O and N—H⋯O hydrogen bonds link the molecules, enclosing R22(16) and R22(24) ring motifs, to generate [110] chains. Very weak π–π stacking interactions between the phenyl rings of adjacent molecules with an inter-centroid distance of 4.0264 (9) Å help to consolidate a three-dimensional architecture. The Hirshfeld surface analysis of the crystal structure indicates that the most important contributions for the crystal packing are from H⋯H (45.1%), H⋯O/O⋯H (23.2%) and H⋯C/C⋯H (19.2%) interactions.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"81 5","pages":"Pages 381-384"},"PeriodicalIF":0.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143967503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and crystal structure study of (R,R)-TMCDA ethanol derivatives doubly protonated with FeCl4− and Cl− as counter-ions 以FeCl4 -和Cl-为反离子双质子化（R，R）- tmcda乙醇衍生物的合成和晶体结构研究。

IF 0.5

Acta Crystallographica Section E: Crystallographic Communications Pub Date : 2025-05-01 DOI: 10.1107/S2056989025003019

Franziska Dorothea Klotz , Clara Alonso Felipe , Fernando Villafañe , Carsten Strohmann

{"title":"Synthesis and crystal structure study of (R,R)-TMCDA ethanol derivatives doubly protonated with FeCl4− and Cl− as counter-ions","authors":"Franziska Dorothea Klotz , Clara Alonso Felipe , Fernando Villafañe , Carsten Strohmann","doi":"10.1107/S2056989025003019","DOIUrl":"10.1107/S2056989025003019","url":null,"abstract":"<div><div>The synthesis and structural characterization of the crystal forms of (R,R)-TMCDA and its ethanol derivative, both doubly protonated with FeCl4− and Cl− as counter-ions, are reported. A notable feature across both synthesized compounds is the presence of N—H⋯Cl hydrogen bonds of moderate strength in the solid state. In the case of the ethanol derivative of (R,R)-TMCDA, the structure also reveals the formation of intermolecular O–H⋯Cl hydrogen bonds.</div></div><div><div>The synthesis and structural characterization of the crystal forms of (R,R)-TMCDA and its ethanol derivative, both doubly protonated with FeCl4− and Cl− as counter-ions, are reported, namely, (R,R)-N1,N1,N2,N2-tetramethylcyclohexane-1,2-bis(aminium) tetrachloridoferrate chloride, (C10H24N2)[FeCl4]Cl (1a), and (R,R)-N1-(2-hydroxyethyl)-N1,N2,N2-trimethylcyclohexane-1,2-bis(aminium) tetrachloridoferrate chloride (C11H26N2O)[FeCl4]Cl (2a). A notable feature across both synthesized compounds is the presence of N—H⋯Cl hydrogen bonds of moderate strength in the solid state. In the case of the ethanol derivative of (R,R)-TMCDA, the structure also reveals the formation of intermolecular O—H⋯Cl hydrogen bonds.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"81 5","pages":"Pages 372-376"},"PeriodicalIF":0.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143963706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and crystal structure analysis of substituted bicyclo[3.3.1]nonanones 取代双环-[3.3.1]诺-诺酮的合成及晶体结构分析。

IF 0.5

Acta Crystallographica Section E: Crystallographic Communications Pub Date : 2025-05-01 DOI: 10.1107/S2056989025003299

Julien A. König , Bernd Morgenstern , Johann Jauch

引用次数: 0

Crystal structure, Hirshfeld surface analysis and DFT studies of 4-amino-N′-[(1E)-1-(3-hydroxyphenyl)ethylidene]benzohydrazide 4-氨基- n '-[(1E)-1-（3-羟基苯基）乙基]苯并肼的晶体结构、Hirshfeld表面分析和DFT研究。

IF 0.5

Acta Crystallographica Section E: Crystallographic Communications Pub Date : 2025-05-01 DOI: 10.1107/S205698902500297X

Subramani Uma Maheswari , Srinivasan Senthilkumar , Sivashanmugam Selvanayagam

引用次数: 0

Synthesis, crystal structure and Hirshfeld surface analysis of 5,5-diphenyl-3-(prop-2-yn-1-yl)imidazolidine-2,4-dione 5,5-二苯基-3-（丙-2-炔-1-基）咪唑烷-2,4-二酮的合成、晶体结构和Hirshfeld表面分析。

IF 0.5

Acta Crystallographica Section E: Crystallographic Communications Pub Date : 2025-05-01 DOI: 10.1107/S2056989025003391

Abderrazzak El Moutaouakil Ala Allah , Chiara Massera , Walid Guerrab , Abdulsalam Alsubari , Joel T. Mague , Youssef Ramli

{"title":"Synthesis, crystal structure and Hirshfeld surface analysis of 5,5-diphenyl-3-(prop-2-yn-1-yl)imidazolidine-2,4-dione","authors":"Abderrazzak El Moutaouakil Ala Allah , Chiara Massera , Walid Guerrab , Abdulsalam Alsubari , Joel T. Mague , Youssef Ramli","doi":"10.1107/S2056989025003391","DOIUrl":"10.1107/S2056989025003391","url":null,"abstract":"<div><div>The molecular structure and crystal packing of 5,5-diphenyl-3-(2-propyn-1-yl)imidazolidine-2,4-dione were studied using single-crystal X-ray diffraction and Hirshfeld surface analysis..</div></div><div><div>The new phenytoin analogue 5,5-diphenyl-3-(2-propyn-1-yl)imidazolidine-2,4-dione, C18H14N2O2 (3), was obtained through an alkylation reaction with propargyl bromide via the phase-transfer catalysis method, and its structure was determined via single-crystal X-ray diffraction analysis. The asymmetric unit of 3 consists of two independent molecules differing mainly in the orientation of the propynyl group. Each molecule forms an inversion dimer through pairs of N2—H2⋯O2 hydrogen bonds. The crystal structure is further consolidated by C—H⋯O and C—H⋯π interactions. The contributions of the different interactions towards the crystal packing were further analysed using Hirshfeld surface and fingerprint plots, showing that the largest contribution comes from the H⋯H contacts (45%).</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"81 5","pages":"Pages 412-416"},"PeriodicalIF":0.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143960206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 poly[[aqua(μ2-pyrazine-κ2N:N′)(μ2-2,3,5,6-tetrachlorobenzene-1,4-dicarboxylato-κ2O1:O4)copper(II)] hemihydrate] 聚[[水-(μ2-吡嗪-κ2 N:N')（μ2-2,3,5,6-四氯苯-1,4-二car-boxyl- -κ2 O:O 4）铜（II）]半水合物]的晶体结构。

IF 0.5

Acta Crystallographica Section E: Crystallographic Communications Pub Date : 2025-05-01 DOI: 10.1107/S2056989025003457

Hitoshi Kumagai , Satoshi Kawata , Nobuhiro Ogihara

{"title":"Crystal structure of poly[[aqua(μ2-pyrazine-κ2N:N′)(μ2-2,3,5,6-tetrachlorobenzene-1,4-dicarboxylato-κ2O1:O4)copper(II)] hemihydrate]","authors":"Hitoshi Kumagai , Satoshi Kawata , Nobuhiro Ogihara","doi":"10.1107/S2056989025003457","DOIUrl":"10.1107/S2056989025003457","url":null,"abstract":"<div><div>The CuII ions in this compound form a square-pyramidal coordination environment and are bridged by the Cl4bdc2− and pyz ligands to form a two-dimensional (2D) layer. The 2D layers are alternately stacked by hydrogen-bonding and C—Cl⋯π interactions to form a three-dimensional network.</div></div><div><div>The asymmetric unit of the title compound, {[Cu2(C8Cl4O4)2(C4H4N2)2(H2O)2]·H2O}n or {[Cu2(Cl4bdc)2(pyz)2(H2O)2]·H2O}n comprises of a CuII ion, one tetrachlorobenzenedicarboxylate ion (Cl4bdc2−), one pyrazine ligand (pyz), and one and a half water molecules. The CuII ion exhibits a five-coordinated square-pyramidal geometry with a CuN2O3 coordination environment comprising two oxygen atoms of the Cl4bdc2− ligands, one oxygen atom of a water molecule, and two nitrogen atoms of the pyz ligands. The carboxylate group is almost perpendicular to the benzene ring and shows monodentate coordination to the CuII ion. The CuII ions of these units are bridged by both the Cl4bdc2− and pyz ligands to form two-dimensional (2D) layers, which are linked by alternating hydrogen-bonding and C—Cl⋯π interactions to yield a three-dimensional network.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"81 5","pages":"Pages 429-432"},"PeriodicalIF":0.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143957914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Rapid and facile one-step microwave synthesis of macrobicyclic cryptands 快速简便的一步微波合成大双环密码。

IF 0.5

Acta Crystallographica Section E: Crystallographic Communications Pub Date : 2025-05-01 DOI: 10.1107/S2056989025003044

Ulrich Baisch , Marie Christine Scicluna , Liana Vella-Zarb

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Crystal structure of a bis-4-azatetracyclo[5.3.2.02,6.08,10]dodec-11-ene-3,5-dione compound 双-4-杂氮-四环[5.3.02,6.08,10]十二-11-烯-3,5-二酮化合物的晶体结构。

IF 0.5

Acta Crystallographica Section E: Crystallographic Communications Pub Date : 2025-05-01 DOI: 10.1107/S2056989025003500

Christina Yu Jiang , Richard J. Staples , Shannon M. Biros

引用次数: 0

Crystal structure, Hirshfeld surface analysis and DFT studies of 2-[4-(2-methylpropyl)phenyl]-N′-[(1Z)-1-(thiophen-2-yl)ethylidene]propanehydrazide 2-[4-（2-甲基-丙基）苯基]- n '-[(1Z)-1-（硫代-苯基）乙基]丙烷酰肼的晶体结构、Hirshfeld表面分析和DFT研究。