1. Coordination polymers constructed from triorganotin(IV) nodes and fumarato spacers
- Author
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Cristian Silvestru, Marius Andruh, Andreea Valentina Ţopîrlan, Alexandru Sava, Andrei A. Patrascu, Ionel Haiduc, and Delia-Laura Popescu
- Subjects
chemistry.chemical_classification ,010405 organic chemistry ,Organic Chemistry ,chemistry.chemical_element ,Crystal structure ,Polymer ,010402 general chemistry ,01 natural sciences ,Biochemistry ,0104 chemical sciences ,Ion ,Inorganic Chemistry ,NMR spectra database ,Trigonal bipyramidal molecular geometry ,Crystallography ,chemistry ,Materials Chemistry ,Physical and Theoretical Chemistry ,Tetradentate ligand ,Tin ,Dissolution - Abstract
Two novel coordination polymers have been constructed from triorganotin nodes, {R3Sn}, and fumarato (fum2-) spacers: 2∞[(Me3Sn)2(fum)] 1 and 3∞[(nBu3Sn)2(fum)] 2. In both compounds the fumarato ion acts as a tetradentate ligand and the tin atoms are 5-coordinate with a trigonal bipyramidal geometry, with the apical positions occupied by oxygen atoms from the fum2- ligands. The crystal structure of 1 consists of infinite parquet-like layers (2-D), formed by coordination driven self-assembly. Compound 2 is a 3-D self-assembled polymer, whose architecture results by fusing two types of metallacycles, each one containing six tin atoms. The multinuclear NMR spectra of the solutions obtained by dissolving compounds 1 and 2 in CDCl3 and DMSO-d6 indicate that the polymeric structures are not preserved.
- Published
- 2019
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