3-(CHMe2)2}ZrH2 and (η5-C5HMe4)2ZrH2 exist as equilibrium mixtures of monomer and dimer in benzene solution. The hydride ligands rapidly exchange with D2, affording the dideuteride complexes. Deuterium incorporation into some of the substituents on the cyclopentadienyl rings of the monomeric dihydride complexes is also observed. The X-ray structures of Cp*2HfH2, Cp*η5-C5H4(CMe3)}ZrCl2, Cp*η5-C5H3-1,3-(CHMe2)2}ZrCl2
通过氢化相应的二甲基配合物,制备了一系列具有[R n CP)2 ZrH 2 ] x的具有取代的
环戊二烯基
配体的一系列
锆茂二
氢化物配合物。最拥挤空间成员(CP *(η 5 -C 5
HME 4)ZRH 2,(CP * =(η 5 -C 5我5))中,CP * η 5 -C 5 H ^ 3 -1,3- (
CME 3)2 } ZRH 2和η 5 -C 5 H ^ 3 -1,3-(
CME3)2 } 2 ZrH 2)是单体;那些不太拥挤的构件(的[CP * η 5 -C 5 H ^ 4(
CME 3)} ZRH 2 ] 2,混合[CP *(THI)ZRH 2 ] 2(THI =η 5 -tetrahydroindenyl),和[η 5 -C 5 H 3 -1,3-(C
HME 2)2 } 2 ZrH 2 ] 2)在苯溶液中主要为二聚体。的CP * η 5 -C 5 H ^ 3 -1,3-(C
HME2)2