Highly Strained Heterometallacycles of Group 4 Metallocenes with Bis(diphenylphosphino)methanide Ligands
作者:Martin Haehnel、Sven Hansen、Jacqueline B. Priebe、Anke Spannenberg、Perdita Arndt、Angelika Brückner、Uwe Rosenthal
DOI:10.1002/chem.201300218
日期:2013.6.3
A study of the coordination chemistry of different bis(diphenylphosphino)methanide ligands [Ph2PC(X)PPh2] (X=H, SiMe3) with Group 4 metallocenes is presented. The paramagnetic complexes [Cp2Tiκ2‐P,P‐Ph2PC(X)PPh2}] (X=H (3 a), X=SiMe3 (3 b)) have been prepared by the reactions of [(Cp2TiCl)2] with [LiC(X)PPh2}2(thf)3]. Complex 3 b could also be synthesized by reaction of the known titanocene alkyne
提出了一种不同的双(二苯基膦基)甲烷配体[Ph 2 PC(X)PPh 2 ](X = H,SiMe 3)与第4族茂金属的配位化学研究。所述顺磁性配合物的[Cp 2的Ti κ 2 - P,P -Ph 2 PC(X)PPH 2 }](X = H(3)中,X =森达3(图3b))已经被制备的反应[(Cp 2 TiCl)2 ]与[Li C(X)PPh 2 } 2(thf)3 ]。复合体3 b也可以通过炔复杂的[Cp的已知二茂钛的反应来合成2的Ti(η 2 -Me 3的SiC 2森达3)]的Ph 2 PC(H)(森达3)PPH 2(图2b)。所述heterometallacyclic复杂的[Cp 2 Zr的(H)κ 2 - P,P -Ph 2 PC(H)PPH 2 }](4 AH)已准备通过与施瓦茨试剂的反应[李C(H)PPH 2 } 2(thf)3 ]。[Cp 2 HfCl 2的反应]与[李C(X)PPH