900514-92-3Relevant academic research and scientific papers
Electronic structure and evolution of a terminal butadienylphosphinidene complex
Tran Huy, Ngoc Hoa,Hao, Shaojie,Ricard, Louis,Mathey, Francois
, p. 3152 - 3155 (2006)
The DFT study of the 1-butadienylphosphinidene complex [CH 2=CHCH=CHP-Cr(CO)5] shows a delocalized structure with a short P-C bond at 1.789 A and a long Cα=C β double bond at 1.367 A. The W(CO)5 complex has been synthesized by copper-catalyzed decomposition of the appropriate 7-phosphanorbornadiene complex. It gives the normal reaction products with alkynes (phosphirenes) and with conjugated dienes (phospholenes and dihydrophosphepines via a phospha-Cope rearrangement), but when no trapping reagent is added to the reaction mixture, it gives a complex pentacyclic product whose structure has been established by X-ray crystal structure analysis and whose formation involves a cascade of reactions starting at the dienyl substituent of the precursor.
