102493-30-1Relevant academic research and scientific papers
Single-crystal polarized electronic absorption spectra and ligand field parameters for triphenylphosphine and triphenylarsine in PtCl3L- complexes
Chang, Tsu-Hsin,Zink, Jeffrey I.
, p. 2736 - 2741 (2008/10/08)
The single-crystal polarized electronic absorption spectra of (Pr4N)[PtCl3PPh3] and (Pr4N)[PtCl3AsPh3] taken at 10 K are reported. Spin-allowed and spin-forbidden ligand field transitions and a ligand-localized transition are assigned. The σ and π interactions of the triphenylphosphine and triphenylarsine ligands with the metal d orbitals are obtained by using two methods. First, the trends in the σ and π interactions are determined from trends in the energies of spectral features. Second, full-matrix angular-overlap ligand field theory calculations including spin-orbit coupling are reported and the AOM σ and π parameters are reported. The two-dimensional spectrochemical series is discussed. Triphenylphosphine is a better σ donor and a poorer π acceptor than triphenylarsine. These two ligands are compared to other ligands of interest in organometallic chemistry.
