14E ETA(1)-HYDROCARBYLIRON COMPLEXES SUPPORTED BY HYDROTRIS(3,5-DIISOPROPYLPYRAZOLYL)BORATE - THE ALLYL COMPLEX PREFERS A HIGHLY COORDINATIVELY UNSATURATED 14E ETA(1)-STRUCTURE TO A 16E ETA(3)-STRUCTURE
M. Akita et al., 14E ETA(1)-HYDROCARBYLIRON COMPLEXES SUPPORTED BY HYDROTRIS(3,5-DIISOPROPYLPYRAZOLYL)BORATE - THE ALLYL COMPLEX PREFERS A HIGHLY COORDINATIVELY UNSATURATED 14E ETA(1)-STRUCTURE TO A 16E ETA(3)-STRUCTURE, Chemical communications, (9), 1998, pp. 973-974
Coordinatively unsaturated allyl and benzyl complexes with the hydrotr
is(3,5-diisopropylpyrazolyl)borat ligand(Tp(iPr)), Tp(iPr)M-allyl(M =
Ni, Co, Fe) and Tp(iPr)Fe-p-methylbenzyl, are prepared and characteriz
ed by X-ray crystallography, and the allyl ligand is coordinated to th
e Fe center in a eta(1)-fashion to form a 14e species in contrast to t
he eta(3)-coordination found for the Ni and Co complexes.