Synthese von Bis(η5-cyclopentadienyl)(1,2,3-triphenyltriphosphan-1,3-diyl)zirconium(IV) und -hafnium(IV), (M = Zr, Hf) und Struktur des Hafnocenderivates

✍ Scribed by Hey, Evamarie ;Bott, Simon G. ;Atwood, Jerry L.

• Publisher: Wiley (John Wiley & Sons)
• Year: 1988
• Tongue: English
• Weight: 217 KB
• Volume: 121
• Category: Article
• ISSN: 0009-2940
• DOI: 10.1002/cber.19881210327

✦ Synopsis

Synttbesi of B i s ( ~s ~y l o p o n t 4 d i e y l ~~, 2 3 t r i p b e n y l t n ~~~ yl)zirconium(lV) nod -hnfniam(IV), [(q54Z5H5)2--PPb -PPh)] (M = Zr, HT), and Structure of tbe Hafm e n e Derivative The reaction of [MCp+2l2] (M = Zr, HI; Cp = qS-C5H5) with [LiPHPh . 2 THFI and of [ZrCbMez] with PHzPh leads to [Cp2MpPh-PPh-PPh)] (la, M = Zr; lb, M = Hf). The crysdl structure of 1 b shows that only one diastereomer is present [(R) at P(l), (S) at P(3)] and that the HfP, metallacycle is virtually coplanar.