SYNTHESIS AND CRYSTAL STRUCTURE OF POLY-TRIVINYLTINFERROCENOATE

Article abstract of DOI:10.1016/S0022-328X(00)93431-4

Binuclear complexes of formula C5H15FeC5H4COOSn(CH=CH2)3 (I), C5H5FeC5H4COOSnPh3 (II) and Ph3GeCOOSnPh3 (III) have been prepared and characterized by IR spectra.The polymeric structure of solid C5H5FeC5H4COOSn(CH=CH2)3 has been established by X-ray crystallography.The crystals are monoclinic, space group P2₁/a, with a 15.105(5), b 10.030(4), c 11.402(4) Angstroem, and β 104.06(4) deg.In this compound the tin atoms are five-coordinate trigonal bipiramidal, with the vinyl groups equatorial and two apical oxygen atoms from bridging carboxylato groups.The resulting structure is a linear polymer with Sn-O bond lengths of 2.12 and 2.42 Angstroem.The spectra indicate that similar polymeric structure exist also for compounds II and III in the solid state, whereas an equilibrium monomer <*> dimer seems to be present in CHCl3 solution for the compound III.