Synthesis and characterization of (η5-cyclopentadienyl)(η5-(1-(η5-cyclopentadienyl))-2-phenyl-3-ethyl-1-nickelaindenyl)nickel, a new nickelacyclic analogue of nickelocene

A new nickelacyclic compound (η5-cyclopentadienyl)(η5-(1-(η5-cyclopentadienyl))-2-phenyl-3-ethyl-1-nickelaindenyl)nickel was synthesised in the reaction of (E)-1-lithio-1-phenyl-2-(2′-lithiophenyl)ethane with nickelocene. The compound was characterised by high resolution mass spectrometry, magnetic moment determination and X-ray single crystal analysis. It crystallises from hexane/THF mixture in the monoclinic crystal system and the P21/n space group.