The Raman and IR spectra of LnTPPTS·10H 2O[Ln=La,Sm,TPPTS=P(m C 6H 4SO 3)3-3]complexes are reported.Based on the observed Raman and IR characteristic frequencies,a vibrational assignments has been made for these ...The Raman and IR spectra of LnTPPTS·10H 2O[Ln=La,Sm,TPPTS=P(m C 6H 4SO 3)3-3]complexes are reported.Based on the observed Raman and IR characteristic frequencies,a vibrational assignments has been made for these complexes.Coordination induces a lengthening of the S—O bonds and a shortening of the C—S bond.The C—S stretching frequencies should therefore increase while the position of the v(SO 3)should move to a lower wavenumber.Vibrational modes of metal oxygen polyhedronν(Ln—Ο)at 146,168,253 cm-1 are the structural charactrization for coordinate bond of LnTPPTS complexes.展开更多
文摘The Raman and IR spectra of LnTPPTS·10H 2O[Ln=La,Sm,TPPTS=P(m C 6H 4SO 3)3-3]complexes are reported.Based on the observed Raman and IR characteristic frequencies,a vibrational assignments has been made for these complexes.Coordination induces a lengthening of the S—O bonds and a shortening of the C—S bond.The C—S stretching frequencies should therefore increase while the position of the v(SO 3)should move to a lower wavenumber.Vibrational modes of metal oxygen polyhedronν(Ln—Ο)at 146,168,253 cm-1 are the structural charactrization for coordinate bond of LnTPPTS complexes.
