Reinaldo Atencio, Marciel M Linares, Teresa González, Alexander Briceño
{"title":"Multivalent hydrogen-bonded architectures directed by self-complementarity between [Cu(2,2'-biimidazole)] and malonate building blocks.","authors":"Reinaldo Atencio, Marciel M Linares, Teresa González, Alexander Briceño","doi":"10.1107/S2053229624007897","DOIUrl":null,"url":null,"abstract":"<p><p>The synthesis and structural characterization of four novel supramolecular hydrogen-bonded arrangements based on self-assembly from molecular `[Cu(2,2'-biimidazole)]' modules and malonate anions are presented, namely, tetrakis(2,2'-biimidazole)di-μ-chlorido-dimalonatotricopper(II) pentahydrate, [Cu<sub>3</sub>(C<sub>3</sub>H<sub>2</sub>O<sub>4</sub>)<sub>2</sub>Cl<sub>2</sub>(C<sub>6</sub>H<sub>6</sub>N<sub>4</sub>)<sub>4</sub>]·5H<sub>2</sub>O or [Cu(H<sub>2</sub>biim)<sub>2</sub>(μ-Cl)Cu<sub>0.5</sub>(mal)]<sub>2</sub>·5H<sub>2</sub>O, aqua(2,2'-biimidazole)malonatocopper(II) dihydrate, [Cu(C<sub>3</sub>H<sub>2</sub>O<sub>4</sub>)(C<sub>6</sub>H<sub>6</sub>N<sub>4</sub>)(H<sub>2</sub>O)]·2H<sub>2</sub>O or [Cu(H<sub>2</sub>biim)(mal)(H<sub>2</sub>O)]·2H<sub>2</sub>O, bis[aquabis(2,2'-biimidazole)copper(II)] dimalonatodiperchloratocopper(II) 2.2-hydrate, [Cu(C<sub>6</sub>H<sub>6</sub>N<sub>4</sub>)<sub>2</sub>(H<sub>2</sub>O)]<sub>2</sub>[Cu(C<sub>3</sub>H<sub>2</sub>O<sub>4</sub>)(ClO<sub>4</sub>)<sub>2</sub>]·2.2H<sub>2</sub>O or [Cu(H<sub>2</sub>biim)<sub>2</sub>(H<sub>2</sub>O)]<sub>2</sub>[Cu(mal)<sub>2</sub>(ClO<sub>4</sub>)<sub>2</sub>]·2.2H<sub>2</sub>O, and bis(2,2'-biimidazole)copper(II) bis[bis(2,2'-biimidazole)(2-carboxyacetato)malonatocopper(II)] tridecahydrate, [Cu(C<sub>6</sub>H<sub>6</sub>N<sub>4</sub>)<sub>2</sub>][Cu(C<sub>3</sub>H<sub>2</sub>O<sub>4</sub>)(C<sub>3</sub>H<sub>3</sub>O<sub>4</sub>)(C<sub>6</sub>H<sub>6</sub>N<sub>4</sub>)<sub>2</sub>]·13H<sub>2</sub>O or [Cu(H<sub>2</sub>biim)<sub>2</sub>][Cu(H<sub>2</sub>biim)<sub>2</sub>(Hmal)(mal)]<sub>2</sub>·13H<sub>2</sub>O. These assemblies are characterized by self-complementary donor-acceptor molecular interactions, demonstrating a recurrent and distinctive pattern of hydrogen-bonding preferences among the carboxylate, carboxylic acid and N-H groups of the coordinated 2,2'-biimidazole and malonate ligands. Additionally, coordination of the carboxylate group with the metallic centre helps sustain remarkable supramolecular assemblies, such as layers, helices, double helix columns or 3D channeled architectures, including mixed-metal complexes, into a single structure.</p>","PeriodicalId":7115,"journal":{"name":"Acta Crystallographica Section C Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Crystallographica Section C Structural Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1107/S2053229624007897","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/8/19 0:00:00","PubModel":"Epub","JCR":"Q4","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The synthesis and structural characterization of four novel supramolecular hydrogen-bonded arrangements based on self-assembly from molecular `[Cu(2,2'-biimidazole)]' modules and malonate anions are presented, namely, tetrakis(2,2'-biimidazole)di-μ-chlorido-dimalonatotricopper(II) pentahydrate, [Cu3(C3H2O4)2Cl2(C6H6N4)4]·5H2O or [Cu(H2biim)2(μ-Cl)Cu0.5(mal)]2·5H2O, aqua(2,2'-biimidazole)malonatocopper(II) dihydrate, [Cu(C3H2O4)(C6H6N4)(H2O)]·2H2O or [Cu(H2biim)(mal)(H2O)]·2H2O, bis[aquabis(2,2'-biimidazole)copper(II)] dimalonatodiperchloratocopper(II) 2.2-hydrate, [Cu(C6H6N4)2(H2O)]2[Cu(C3H2O4)(ClO4)2]·2.2H2O or [Cu(H2biim)2(H2O)]2[Cu(mal)2(ClO4)2]·2.2H2O, and bis(2,2'-biimidazole)copper(II) bis[bis(2,2'-biimidazole)(2-carboxyacetato)malonatocopper(II)] tridecahydrate, [Cu(C6H6N4)2][Cu(C3H2O4)(C3H3O4)(C6H6N4)2]·13H2O or [Cu(H2biim)2][Cu(H2biim)2(Hmal)(mal)]2·13H2O. These assemblies are characterized by self-complementary donor-acceptor molecular interactions, demonstrating a recurrent and distinctive pattern of hydrogen-bonding preferences among the carboxylate, carboxylic acid and N-H groups of the coordinated 2,2'-biimidazole and malonate ligands. Additionally, coordination of the carboxylate group with the metallic centre helps sustain remarkable supramolecular assemblies, such as layers, helices, double helix columns or 3D channeled architectures, including mixed-metal complexes, into a single structure.
期刊介绍：
Acta Crystallographica Section C: Structural Chemistry is continuing its transition to a journal that publishes exciting science with structural content, in particular, important results relating to the chemical sciences. Section C is the journal of choice for the rapid publication of articles that highlight interesting research facilitated by the determination, calculation or analysis of structures of any type, other than macromolecular structures. Articles that emphasize the science and the outcomes that were enabled by the study are particularly welcomed. Authors are encouraged to include mainstream science in their papers, thereby producing manuscripts that are substantial scientific well-rounded contributions that appeal to a broad community of readers and increase the profile of the authors.
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