447408-59-5Relevant academic research and scientific papers
Palladium(II) terminal phosphido complexes derived from cyclometalated dimesitylphosphine: Synthesis, structure, and low-barrier phosphorus inversion
Zhuravel, Michael A.,Glueck, David S.,Zakharov, Lev N.,Rheingold, Arnold L.
, p. 3208 - 3214 (2008/10/08)
The cyclometalated cationic Pd(II) and Pt(II) complexes [M(diphos)(CH2C6H2Me2P(Mes)-(H))] [X] (5-8: M = Pd, Pt; diphos = dppe (Ph2PCH2CH2PPh2), dppen (cis-Ph2PCH=CHPPh2); Mes = 2,4,6-Me3C6H2; X = OTf, BF4) were prepared by thermolysis of the cations [M(diphos)-(Me)(PMes2H)] [X]. Deprotonation of 5-8 gave the neutral phosphido complexes M(diphos)-(CH2C6H2Me2P(Mes)) (9-12); the Pd(II) compounds 9 and 11 are the first examples of stable palladium terminal phosphido alkyl complexes, and their crystal structures were determined. Fluxional processes in complexes 9-12 were studied by variable-temperature NMR spectroscopy; the spectra are consistent with low barriers to phosphorus inversion.
