229983-01-1Relevant academic research and scientific papers
Reactions of acetylene-bridged diplatinum complexes with tetracyanoethylene
Onitsuka, Kiyotaka,Ose, Nobuo,Ozawa, Fumiyuki,Takahashi, Shigetoshi
, p. 169 - 177 (1999)
The treatment of the μ-ethynediyldiplatinum complex (1a) possessing trimethylphosphine with tetracyanoethylene (TCNE) in refluxing benzene results in the formation of s-cis-μ-butadiene-2,3-diyldiplatinum complex (2a), while the similar reaction of a triethylphosphine analog (1b) leads to the isolation of s-trans-μ-butadiene-2,3-diyldiplatinum complex (3b), which comes to slow equilibrium with s-cis complex 2b in solution. The μ-butadiynediyl-diplatinum (7) and -dipalladium complexes (9) react with TCNE at room temperature (r.t.) to give complexes 8 and 10, respectively. The p-diethynylbenzene-bridged diplatinum complex (11) and the mononuclear platinum-acetylide (13) also react with TCNE at r.t. to give complexes (12) and (14), respectively. The molecular structures of complexes 2a, 3b, 8a and 14 have been determined by X-ray crystallography.
