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 vibr...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 polyhedron ν (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 polyhedron ν (Ln—Ο) at 146,168,253 cm -1 are the structural charactrization for coordinate bond of LnTPPTS complexes.
