MOLECULAR DESIGN OF TRANSITION-METAL COMPLEX-COMPOUNDS FOR ACTIVATION OF SMALL MOLECULES .2. CARBONYLATION OF BIS-(PI-PENTAMETHYLCYCLOPENTADIENYL)METAL 11,3-DIENE COMPLEXES CP(STAR)2M(1,3-DIENE) (M=ZR,HF) - FORMATION OF METAL ENEDIOLATES

被引:16
作者
BECKHAUS, R [1 ]
WILBRANDT, D [1 ]
FLATAU, S [1 ]
BOHMER, WH [1 ]
机构
[1] ZENT INST ORGAN CHEM,O-1199 BERLIN,GERMANY
关键词
D O I
10.1016/0022-328X(92)83115-X
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Bis(pi-pentamethylcyclopentadienyl)metal-(eta(4)-s-cis-diene) complexes of zirconium and hafnium react with carbon monoxide under mild conditions to give mononuclear metal-endiolates 18-20 quantitatively. The corresponding isomeric trans-diene complexes react with carbon monoxide to give metallocene-dicarbonyls Cp*2M(CO)2 (Cp* = C5(CH3)5), whereas in the case of M = Hf a monocarbonyl-eta(2)-butadiene complex is formed in solution. All compounds were characterized by spectroscopic measurements.
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页码:211 / 222
页数:12
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