Mössbauer spectra and electric dipole moments of organotin(IV) complexes with organic ligands

Abstract

Mössbauer spectra, electric dipole moment, and infrared data are reported for several complexes of the type (i) RSnX3(AA) and (ii) RSnX(AB)2 (where R = C4H9, C6H5; X = Cl, NCS; AA = α,α′-dipyridyl, o-phenanthroline, 8-aminoquinoline; AB = oxinate, 2-pyridinethiol 1-oxide). Quadrupole splittings and dipole moments indicate a similar octahedral structure is present in all the complexes studied; in type (i) two X groups are trans and in type (ii) the R and X groups are cis to each other. Isomer shifts reveal an order of bond polarity Sn—O ≈ Sn—NCS > Sn—Cl > Sn—S.