Neue Kationische Nickelmonocyclopentadienyl-Komplexe

Abstract
[Ni2(C5H5)3]BF4 reacts with monodentate Lewis-bases L (L = P(n-C4H9)3, P(C6H5)3, P(OCH3)3, P(OC2H5)3, P(OC6H5)3, As(C6H5)3, pyridine) as well as with bidentate Lewis-bases L-L (L-L = 1,2-C2H4[P(C6H5)2]2, 2,2′-dipyridyl) to form the compounds [C5H5NiL2]BF4 and [C5H5Ni (L-L)]BF4, respectively. In these reactions, nickelocene is also obtained. The properties of the cationic monocyclopentadienylnickel complexes will be briefly discussed.