Synthèse et étude par spectroscopie Mössbauer, infrarouge et RMN de nouveaux complexes carboxylato organostanniques
(2007) Comptes rendus. Chimie — Vol. 10, n° 6, p. 493-497 (2007)
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- Six benzoato organostannic adducts of general formula [R(4)A][PhCO2 center dot nSnPh(3)X] (R = Me, Ph; A=N, P; X = Cl, Br, SCN and n = 1, 2) and [Me4N][PhCO2SnBu2Cl2] have been synthesized and studied by Mossbauer, infrared and NMR spectroscopies. The complexes have been obtained by reacting the derivative [PhCO2SnPh3] with the appropriate amount of [R(4)AX] salts (R = Me, Ph; A = N, P and X = Cl, Br, SCN), and [Me4N][PhCO2] with Bu2SnCl2. The values of the quadrupole splitting (from the Mossbauer spectra) and the infrared data [Delta v = v(asCOO-) - v(sCOO-)] have been used to determine the mode of coordination between the SnC3 or SnC2 moities and the benzoate in the different adducts. C-13 and Sn-119 NMR spectra have also been used to show the presence of monomeric species in [Me4N][PhCO2 center dot 2SnPh(3)Cl] and [Ph4P][PhCO2SnPh3Br] with a trigonal bipyramidal environment around the tin centres. All the complexes have discrete structures, and the environment around the tin atom is in all cases trigonal bipyramidal.
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Toure, A., Diop, C. A. K., Diop, L., & Mahieu, B. (2007). Synthèse et étude par spectroscopie Mössbauer, infrarouge et RMN de nouveaux complexes carboxylato organostanniques. Comptes rendus. Chimie, 10(6), 493-497. https://doi.org/10.1016/j.crci.2006.06.014 (Original work published 2007)