Nickelphosphankomplexe der MercaptoessigsäureProfessor Dieter Naumann zum 60. Geburtstag gewidmet

Abstract

The reaction of (Cp°2Zr(OOCCH2SH-κ 1 O)- (OOCCH2SH-κ 2 O,O)) (Cp° C5EtMe4) with (NiCl2(PMe2Ph)2) or (NiCl2(dppe)) (dppe PPh2CH2CH2PPh2) in the presence of NEt3 yields the tetranuclear Zr IV /Ni II complex ({Cp°2Zr- (κ 1 O-OOCCH2S-κ 2 O,S)(κ 2 O,O-OOCCH2S-κ 1 S)Ni(PMe2Ph)}2) (1) and the chelate complexes (Ni(OOCCH2S-κ 2 O,S)L2 )( L PMe2Ph (2), L2 dppe (3)). 2 and 3 are also accessible from (NiCl2(PMe2Ph)2) or (NiCl2(dppe)) and mercaptoacetic acid in the