Molecular and crystal structure of 1,1-bis(tert-butyldimethylsilyl)-2,2-bis(trimethylsilyl)ethylene, the most twisted known olefin, and unusual rearrangement during its preparation

1982 ◽  
Vol 104 (15) ◽  
pp. 4288-4289 ◽  
Author(s):  
Hideki Sakurai ◽  
Hiromi Tobita ◽  
Yasuhiro Nakadaira ◽  
Chizuko Kabuto
1981 ◽  
Vol 36 (10) ◽  
pp. 1208-1210 ◽  
Author(s):  
Hartmut Köpf ◽  
Joachim Pickardt

Abstract The molecular structure of the bridged [1]-titanocenophane 1,1'-dimethylsilylene titanocene dichloride, (CH3)2Si(C5H4)2TiCl2, has been investigated by an X-ray structure determination. Crystal data: monoclinic, space group C2/c, Z = 4, a = 1332.9(3), 6 = 988.7(3), c = 1068.9(3) pm, β = 113.43(2)°. The results are compared with the structural dimensions of similar compounds: 1,1'-methylene titanocene dichloride, CH2(C5H4)TiCl2, with the unbridged titanocene dichloride, (C5H5)2TiCl2 and the ethylene-bridged compound (CH2)2(C5H4)2TiCl2


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