Abstract
A zerovalent iron complex having an η 6-naphthalene ligand, Fe( η 6-C 10H 8)(dcype) ( 3) [dcype=1,2-bis(dicyclohexylphosphino)ethane] has been prepared by the reduction of high spin 14 electron dichloroiron(II) complex, FeCl 2(dcype) ( 1) with sodium-naphthalene. In refluxing benzene solution of 3, the coordinated naphthalene can be replaced by benzene giving Fe( η 6-C 6H 6)(dcype) ( 4). Exposure of 3 to CO results in the formation of Fe(CO) 3(dcype) ( 5). Protonation of 3 with HBF 4 yields cationic complex, [FeH( η 6-C 10H 8)(dcype)][BF 4] ( 6), which can be deprotonated by lithium diisopropylamide.
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