Double-Dimethylsilyl-Bridged Dicyclopentadienyl Group 4 Metal Complexes. X-ray Molecular Structures of M[(Me2Si)2(.eta.5-C5H3)2]Cl2 (M = Ti, Zr) and (TiCl3)2{.mu.-[(Me2Si)2(.eta.5-C5H3)2]}

1994 ◽  
Vol 13 (5) ◽  
pp. 1688-1694 ◽  
Author(s):  
Ana Cano ◽  
Tomas Cuenca ◽  
Pilar Gomez-Sal ◽  
Beatriz Royo ◽  
Pascual Royo
Author(s):  
Salvatore Impemba ◽  
Giuseppina Roviello ◽  
Stefano Milione ◽  
Carmine Capacchione

1991 ◽  
Vol 46 (12) ◽  
pp. 1585-1592 ◽  
Author(s):  
Dieter Sellmann ◽  
Peter Lechner ◽  
Falk Knoch ◽  
Matthias Moll

Under exclusion of air the thioether and thiol complexes [Ru(SRR′)(PPh3)′S4′] (′S4′2- = 1,2-bis(2-mercaptophenylthio)ethane (2—)) easily react with CHCl3 yielding [Ru(Cl)(PPh3)(′S4′—CHCl2)] in which one thiolato atom of the ′S4′ ligand is diastereospecifically dichloromethylated. In the presence of air, however, [RuIII(Cl)(PPh3)′S4′] is formed.The molecular structures of [Ru(Cl)(PPh3)(′S4′-CHCl2)] · 2CHCl3 and [RuIII(Cl)(PPh3)′buS4′] have been determined by X-ray crystallography. ′buS4′2- (= 1,2-bis(3,5-di(t-butyl)-2-mercaptophenylthio)ethane(2-)) is the t-butyl derivative of the ′S4′ ligand. Reasons for observed diastereospecifity of alkylation are discussed.


2006 ◽  
Vol 258 (1-2) ◽  
pp. 275-283 ◽  
Author(s):  
Gino Paolucci ◽  
Alessandra Zanella ◽  
Laura Sperni ◽  
Valerio Bertolasi ◽  
Mina Mazzeo ◽  
...  

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