DIENE AND DIENYL COMPLEXES OF TRANSITION ELEMENTS. VI. THE PROTONATION OF TWO ISOMERIC (η5-CYCLOPENTADIENYL)(η4-1,7-DIPHENYLHEPTATRIEN-1-ONE)RHODIUM(I) COMPLEXES

Article abstract of DOI:10.1016/0022-328X(83)80048-5

Two isomeric complexes (η⁵-C5H5)> and (η⁵-C5H5)> have been prepared.The former reacts with HBF4 to give the salt 3-PhCOCH2(CH)3CH=CHPh>(η⁵-C5H5)>⁺BF4^- in which the acyl CO group is coordinated to the metal.The latter, however, on treatment with HPF6, yields a η⁵-pentadienyl salt 5-PhCOCH2(CH)5Ph>(η⁵-C5H5)>⁺PF6^-. 1H and some 13C NMR spectra are reported.