Synthesis and X-ray Crystal Structure of (tmp)(2)Al-Fe(cp)(CO)(2): An Alanyl-Containing Iron Complex with a Tricoordinated Aluminum Atom.

Synthesis of the tricoordinated alanyl-containing iron complex (tmp)(2)Al-Fe(cp)(CO)(2)] (1) (tmp = 2,2,6,6-tetramethylpiperidino) has been achieved in a straightforward salt elimination reaction of (tmp)(2)AlBr with Na[(cp)Fe(CO)(2)]. 1 crystallizes in the triclinic space group P&onemacr; (a = 8.347(4) Å, b = 10.044(5) Å, c = 15.087(8) Å, alpha = 94.01(1) degrees, beta = 91.18(1) degrees, gamma = 102.50(1) degrees ) and is an unassociated monomer with an Al-Fe bond length of 2.450(1) Å.