J. Bao et al., Facile displacement of cyclohexadienide ligand from K[Cr(eta(5)-C6H7)(CO)(3)] to give crystallographically characterized trans-[Cr(CO)(4)(PPh3)(2)], J ORGMET CH, 631(1-2), 2001, pp. 188-192
Substitution of K[Cr(eta (5)-C6H7)(CO)(3)] with triphenylphosphine resulted
in cyclohexadienide loss and formation of an unexpected product, trans-[Cr
(CO)(4)(PPh3)(2)]. The structure of this complex was determined by single c
rystal X-ray diffraction. Crystals contain two conformational isomers, diff
ering mainly in the orientation of PPh3 ligands. (C) 2001 Published by Else
vier Science B.V.