Telluro- and seleno-bridged TiIV-MII(M = Ni, Pd, Pt) heterobimetallic complexes

✍ Scribed by Anju Khanna; Bishan L. Khandelwal; Sushil K. Gupta

• Book ID: 104638008
• Publisher: Springer
• Year: 1994
• Tongue: English
• Weight: 401 KB
• Volume: 19
• Category: Article
• ISSN: 0340-4285
• DOI: 10.1007/bf00139324

✦ Synopsis

Heterobimetallic complexes of the types Cp2Ti(#-EAr)2-M(dppe) 2 [( 1)-( 4); M, E= Ni, Te (I); Ni, Se (2); Pt, Te (3); Pt, Se (4); Ar = Ph (a), C6H~-4-Me (b), C6H4-4-OMe (e), C6H4-4-OEt (d)] and [Cp2Ti(/~-TeAr)z-MC12] [M=Pd (5), Pt (6)] were obtained by the reactions of Cp2Yi(EAr) 2 with M(dppe)(C104) 2 and M(PhCN)2CI2, respectively. While (I), ( 5) and ( 6) are stable in the solid state as well as in solution, (2)-( 4)

undergo dissociation to M(dppe)(EAr) 2 and Cp2Ti(C104)2 in solution, as shown by multinuclear (31p{1H}, 195pt{1H}, 125Te{tH}) n.m.r, studies. The reaction of Cp2Ti(SeAr)2 with M(PhCN)2CI 2, however, leads to the formation of Cp2TiC12 and a polymeric material [M(SeAr)2],.