Precise Steric Control over 2D versus 3D Self-Assembly of Antimony(III) Alkoxide Cages through Strong Secondary Bonding Interactions.

Author(s) Moaven, S.; Yu, J.; Yasin, J.; Unruh, D.K.; Cozzolino, A.F.
Journal Inorg Chem
Date Published 2017 Jun 26

Antimony(III) alkoxide cages were designed as building blocks for predictable supramolecular self-assembly. Supramolecular synthons featuring two Sb···O secondary bonding interactions (SBIs), each SBI stronger than 30 kJ/mol, were used to drive the formation of the supramolecular architectures. Judicious choice of pendant groups provided predictable control over the formation of self-assembled 3D columnar helices, which crystallized with hollow morphologies, or a self-assembled 2D bilayer. The Sb-O stretching frequency provides a spectroscopic signature of Sb···O SBI formation.

DOI 10.1021/acs.inorgchem.7b01049
ISSN 1520-510X
Citation Inorg Chem. 2017.

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