Carbonyl complexes photoelectron spectra

Trifluorophosphino- and Trichlorostannano-complexes.- The photoelectron spectrum of Cr(PF3)6 has been determined and compared with other available data for transition-metal trifluorophosphino- and carbonyl-complexes.32... 

Two papers looking at the photochemistry of iron carbonyls touching upon aspects of their photochemistry that are central to the work below are discussed now. The paper of Hubbard and Lichtenberger [36] from 1981 examined the photoelectron spectrum of Fe(CO)5 in the gas phase. This paper is of relevance as they claimed to have evidence of Jahn-Teller distortions in the Fe(CO)5 cation. Here for the first time it is explicitly mentioned that highly symmetrical transition metal complexes in general have good potential for observable Jahn-Teller activity with regards to their photochemistry after ionization and/or dissociation. They found that ionization into the E state showed Jahn-Teller activity and discussed this in terms of non-Berry pseudo-rotation. 

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