Dissociative photoionization of ferrocene [Fe(Cp)(2)] has been investigated
in the Fe:3p inner-valence region by use of the TOF mass spectrometry and
photoion-photoion coincidence technique. The partial ion yields of Fe(Cp)(), Cp+ and Fe(Cp); show a small enhancement in the Fe:3p --> e(1g) resonanc
e excitation region, while that of doubly charged parent ion [Fe(Cp)(2)(2+)
] exhibits a more pronounced enhancement in the vicinity of the Fe:3p ioniz
ation threshold. (C) 1999 Elsevier Science B.V. All rights reserved.