Hf. Klein et al., RADICAL REACTIONS OF 6,6-DIMETHYLFULVENE AT PARAMAGNETIC COBALT(0) CENTERS STRUCTURE OF A DICOBALT COMPLEX CONTAINING A TETRAMERIC HYDROCARBON LIGAND, Zeitschrift fur Naturforschung. B, A journal of chemical sciences, 49(12), 1994, pp. 1684-1688
6,6-Dimethylfulvene reacts with CO(C2H4)(PMe(3))(3) to give a diamagne
tic dicobalt complex containing a novel bis (eta(5),eta(2))-chelating
hydrocarbon ligand which is a tetramer of 6,6-dimethylfulvene. C,C-cou
pling via radicals induces multiple chirality in the ligand and the st
ructurally characterized stereoisomer adopts a (S,R,R,S) configuration
(meso form).