名称:
Novel platinum (II) complexes with (pyridyloxymethylene)dimethylphosphine oxides-synthesis, IR and Raman study.
摘要:
The synthesis and spectroscopic properties of novel platinum (II) halide complexes with (4-pyridyloxymethylene)dimethylphosphine oxide (p-tpo) and (3-pyridyloxymethylene)dimethylphosphine oxide (m-tpo) are reported. The vibrational (IR and Raman) and physical data are in agreement with suggested stoicheiometry ML2Cl2 (L = p-tpo and m-tpo) and cis-square planar PtN2Cl2 configuration. Both p-tpo and m-tpo act as monodentate ligands and coordinate through the pyridyloxymethylene ring nitrogen to the metal ion. IR and Raman spectra exhibit no shift to lower frequencies of the nu(P=O) and thus provide unambiguous evidence for a free P=O oxygen. Normal coordinate analysis (NCA) calculations of both ligands confirm the monodentate coordination of the ligands. (C) 1998 Elsevier Science B.V. All rights reserved.
DOI:
10.1016/s1386-1425(97)00260-6