![[double bond, length half m-dash]](https://www.rsc.org/images/entities/char_e006.gif)
C(But)P(Cy)}(CO)(PPh3)2], Cy = cyclohexyl The reaction of the phosphavinyl ![[double bond, length as m-dash]](https://www.rsc.org/images/entities/char_e001.gif)
C(But)MgCl(OEt2)], Cy = C(But)P(Cy)}(CO)(PPh3)2], which has been crystallographically characterised and its reaction with CO examined.
![Graphical abstract: Synthesis, characterisation and reactivity of a novel iridaphosphirene complex, [Ir{ [[double bond, length half m-dash]] C(But)P(Cy)}(CO)(PPh3)2], Cy = cyclohexyl](/en/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=B204127H&imageInfo.ImageIdentifier.Year=2002)
![[double bond, length half m-dash]](https://www.rsc.org/images/entities/h2_char_e006.gif)
C(But)P(Cy)}(CO)(PPh3)2], Cy = M. Brym, C. Jones and A. F. Richards, J. Chem. Soc., Dalton Trans., 2002, 2800 DOI: 10.1039/B204127H
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