ORGANOTIN CARBOXYLATES .I. MOSSBAUER AND INFRARED STUDY OF TRIPHENYLTIN CARBOXY-LATES AND NOVEL COMPOUNDS RSN(O)OCOR

Triphenyltin carboxylates are capable of existing in two forms. The straight-chain compounds are polymeric, with bridging OCO groups and pentacoordinate tin atoms. If the carboxylate chain branches at the α-position the compounds are monomeric and resemble normal esters. The different structures are readily identified from their Mössbauer and infrared spectra. It is shown that at least some of these compounds decompose to yield phenylstannoic carboxylates, which probably exist either as cyclic trimers or linear polymers, with SnOSn bridges and either chelating or ionic carboxyl groups. © 1969.