Synthesis and structure of a P-metallated phospha-alkene, [Os(P![[double bond, length half m-dash]](https://www.rsc.org/images/entities/char_e006.gif)
C[O]CF3)(CO)2(PPh3)2]
Abstract
The terminal PH2-complex, [Os(PH2)Cl(CO)2(PPh3)2], when treated with (CF2CO)2O gives [Os{PH(C[O]CF3)}Cl(CO)2-(PPh3)2] and this compound in dehydrochlorinated by NaH in tetrahydrofuran yielding the putative phosphinidene species, [Os(PC[O]CF3)(CO)2(PPh3)2] which ring-closes to the title compound the solid-state structure of which is proved by X-ray crystallography.
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![[double bond, length half m-dash]](https://www.rsc.org/images/entities/h2_char_e006.gif)
C[O]CF3)(CO)2(PPh3)2]