RT info:eu-repo/semantics/article
T1 Cation- and Anion-Mediated Supramolecular Assembly of Bismuth and Antimony Tris(3-pyridyl) Complexes
A1 García Romero, Álvaro
A1 Martín Álvarez, José Miguel
A1 Miguel San José, Daniel
A1 Wright, Dominic Simon
A1 Álvarez González, Celedonio Manuel
A1 García Rodríguez, Raúl
K1 X-rays
K1 Rayos X
K1 Cations
K1 Cationes
K1 Anions
K1 Aniones
K1 Ligands
K1 Ligandos
AB 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.
PB ACS Publications
SN 0020-1669
YR 2021
FD 2021
LK https://uvadoc.uva.es/handle/10324/50935
UL https://uvadoc.uva.es/handle/10324/50935
LA eng
NO Inorganic Chemistry, 2021, vol. 60, n. 24. p. 19206–19218
NO Producción Científica
DS UVaDOC
RD 24-nov-2024