78820-47-0Relevant academic research and scientific papers
Thermal Decomposition of Di(cycloalkyl)bis(triethylphosphine)platinum(II) Complexes
Nuzzo, Ralph G.,McCarthy, Thomas J.,Whitesides, George M.
, p. 3404 - 3410 (1981)
The thermal decomposition of three di(cycloalkyl)bis(triethylphosphine)platinum(II) complexes 4), cyclopentyl (L2Pt(c-C5)2> have been examined.The mechanisms of decomposition of L2Pt(c-C4) and L2Pt(c-C5) are similar to those established in greater detail for diethylbis(triethylphosphine)platinum(II).The individual steps in solutions containing low concentrations of free triethylphosphine are dissociation of triethylphosphine and creation of a vacant coordination site, β-hydride elimination, and reductive elimination of cycloalkane (Scheme I); either the first or the third of these steps may be rate limiting.At high , another path having two triethylphosphines on platinum in the rate-determining transition state is important.Both enthalpic and entropic terms are important in determining which mechanism for decomposition is followed.Thermal decomposition of L2Pt(c-C3)2 is complex and it is not presently understood: isomerization of cis-L2Pt(c-C3)2 to trans-L2Pt(c-C3)2, hydrogen transfer from L to the cyclopropyl group, and opening of the cyclopropyl ring are all competitive processes.
