Cation- and Anion-Mediated Supramolecular Assembly of Bismuth and Antimony Tris(3-pyridyl) Complexes.
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Authors
García-Romero, Álvaro
Publication Date
2021-12-20Journal Title
Inorg Chem
ISSN
0020-1669
Publisher
American Chemical Society (ACS)
Volume
60
Issue
24
Pages
19206-19218
Language
eng
Type
Article
This Version
VoR
Metadata
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García-Romero, Á., Martín-Álvarez, J. M., Miguel, D., Wright, D. S., Álvarez, C. M., & García-Rodríguez, R. (2021). Cation- and Anion-Mediated Supramolecular Assembly of Bismuth and Antimony Tris(3-pyridyl) Complexes.. Inorg Chem, 60 (24), 19206-19218. https://doi.org/10.1021/acs.inorgchem.1c03004
Description
Funder: Universidad de Valladolid
Abstract
The use of antimony and bismuth in supramolecular chemistry has been largely overlooked in comparison to the lighter elements of Group 15, and the coordination chemistry of the tripodal ligands [Sb(3-py)3] and [Bi(3-py)3] (L) containing the heaviest p-block element bridgehead atoms has been unexplored. We show that these ligands form a common hybrid metal-organic framework (MOF) structure with Cu(I) and Ag(I) (M) salts of weakly coordinating anions (PF6-, SbF6-, and OTf-), composed of a cationic substructure of rhombic cage (M)4(L)4 units linked by Sb/Bi-M bonding. The greater Lewis acidity of Bi compared to Sb can, however, allows anion···Bi interactions to overcome Bi-metal bonding in the case of BF4-, leading to collapse of the MOF structure (which is also seen where harder metals like Li+ are employed). This study therefore provides insight into the way in which the electronic effects of the bridgehead atom in these ligand systems can impact their supramolecular chemistry.
Sponsorship
Agencia Estatal de Investigaci??n, Ministerio de Ciencia, Innovaci??n y Universidades (PGC2018-096880-A-I00, PGC2018-099470-B-I00)
Leverhulme Trust (RPG-2017-146)
Ministerio de Econom??a y Competitividad (RYC-201519035)
Identifiers
34882394, PMC8693195
External DOI: https://doi.org/10.1021/acs.inorgchem.1c03004
This record's URL: https://www.repository.cam.ac.uk/handle/1810/333121
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