DFT Calculation of 1J(119Sn,13C) and 2J(119Sn,1H) Coupling Constants in Di- and Trimethyltin(IV) Compounds
- 6 May 2008
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 47 (11) , 4796-4807
Abstract
We have tested several computational protocols, at the nonrelativistic DFT level of theory, for the calculation of 1J(119Sn,13C) and 2J(119Sn,1H) spin−spin coupling constants in di- and trimethyltin(IV) derivatives with various ligands. Quite a good agreement with experimental data has been found with several hybrid functionals and a double-ζ basis set for a set of molecules comprising tetra-, penta-, and hexa-coordinated tin(IV). Then, some of the protocols have been applied to the calculation of the 2J(119Sn,1H) of the aquodimethyltin(IV) ion and dimethyltin(IV) complex with d-ribonic acid and to the calculation of 1J(119Sn,13C) and 2J(119Sn,1H) of the dimethyltin(IV)−glycylglycine and glycylhistidine complexes in water solutions. Solvent effects have been considered in these cases by including explicit water molecules and/or the solvent reaction field, resulting in a good agreement with experimental data. The proposed protocols constitute a helpful tool for the structural determination of di- and triorganotin(IV) derivatives.Keywords
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