Steric control over molecular structure and supramolecular association exerted by tin- and ligand-bound groups in diorganotin carboxylates
Data(s) |
01/01/2003
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Resumo |
Structural data (X-ray and solution and solid-state <sup><sub>119</sub></sup>Sn NMR) show that skew-trapezoidal-bipyramidal diorganotin compounds of 2-quinaldate are invariably monomeric, owing to the steric bulk of the carboxylate ligand. In contrast, most of the analogous compounds of 2-picolinate (2-pic) can increase their coordination number by polymerization or the incorporation of solvent in their coordination sphere in the solid state. The exceptional compound is tBu<sub>2</sub>Sn(2-pic)<sub>2</sub> (<b>3</b>), for which no increase in coordination number is apparent, a result that is correlated with the bulky tert-butyl groups. Thus, judicious choice of tin or ligand substituents can be exploited to dictate coordination number and/or the degree of supramolecular aggregation in the investigated systems.<br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
ACS Publications |
Relação |
http://dro.deakin.edu.au/eserv/DU:30002057/duthie-stericcontrol-2003.pdf http://dx.doi.org/10.1021/om0340140 |
Direitos |
2003, American Chemical Society |
Tipo |
Journal Article |