Some spectroscopic properties of platinum(H) and palladium(H) complexes of aryl alkyl sulfides

✍ Scribed by O.A. Serra; L.R.M. Pitombo; Y. Iamamoto

• Book ID: 104137637
• Publisher: Elsevier Science
• Year: 1978
• Tongue: English
• Weight: 694 KB
• Volume: 31
• Category: Article
• ISSN: 0020-1693
• DOI: 10.1016/s0020-1693(00)94979-x

✦ Synopsis

Compounds of the MClz(R-S-R1j2 type, where M = Pt(II) and Pd(II), R = methyl and R, = phenyl, o-, m-, p-tolyl, have been prepared. The trans-structure for some of these compounds was characterized by IR, Raman and 'H-NMR measurements, Electronic spectra of the mentioned compounds in solid state and solutions were studied. Molecular orbital diagrams were developed for MC12(pms)z where pms = phenylmethylsulfide. The electronic spectra were in reasonable agreement with the proposed diagrams, thus clarifying the electronic structure of the compounds. The shifting of the ligand to metal electron transfer (LMET) transition due to factors such as complex central atoms and different radicals bounded to the sulfur atom, supplied important information, making the interpretation of the data previously obtained from palladium(H) compounds possible. It was also possible to situate the phenylmethylsulfide in the spectrochemical series indicating stronger n bonding and weaker o bonding for aryl alkyl sulfide complexes as compared to the alkyl sulfide complexes.