Abstract: Thirteen Ti-Mo heterobimetallic complexes were prepared.The structures of these complexes were characterized by element analysis,¹H NMR,¹³C NMR,⁹⁵Mo NMR,¹¹B NMR,IR,MS and electrical conductivity.The heterobimetallic complexes contain metal-metal bonds with some covalent character and semibridging carbon monoxide.The common structural formula of Ti-Mo heterobi metallic complexes can be written as follow: Where R=H,Pz;X=H,CH₃;Y=H,CH₃,R=CH₃,OCH₃,OC₂H₅.

Key words: Heterobimetallic complex, Acetyl acetone, Titanocene dichloride, Hexacarbonyl molybdenum, Potassium tetrapyrazolylborate