Multivalent hydrogen-bonded architectures directed by self-complementarity between [Cu(2,2′-biimidazole)] and malonate building blocks

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.

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Journal
Acta Crystallographica Section C Structural Chemistry
Published
2024-08-19
DOI
https://doi.org/10.1107/s2053229624007897
Citations
1
Primary Topic
Metal-Organic Frameworks: Synthesis and Applications
Type
article
Field-Weighted Citation Impact
0.16

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article

Multivalent hydrogen-bonded architectures directed by self-complementarity between [Cu(2,2′-biimidazole)] and malonate building blocks

Alexander Briceño, Teresa González, R. Atencio, Marciel M. Linares
1 citations
Acta Crystallographica Section C Structural Chemistry
Metal-Organic Frameworks: Synthesis and Applications
0.16
article

Multivalent hydrogen-bonded architectures directed by self-complementarity between [Cu(2,2′-biimidazole)] and malonate building blocks

Alexander Briceño, Teresa González, R. Atencio, Marciel M. Linares
article en
1 citations

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, [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.

Acta Crystallographica Section C Structural ChemistryVol. 80(9)
Instituto Venezolano de Investigaciones Científicas (VE), Escuela Superior Politecnica del Litoral (EC)
Fondo Nacional de Ciencia Tecnología e Innovación
Openalex Percentile: Top 59%
Metal-Organic Frameworks: Synthesis and Applications
0.16
DOISourceOpenAlex
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