Abstract
A mass spectroscopic study is reported on compounds of the type PtR 2L 2 where L = PR 3 or L 2 = a chelating diphosphine and R = alkyl or aryl. Various factors affecting fragmentation paths and ion abundances have been identified. Rearrangement processes occur in which organic groups are transferred to and from P and Pt, and a mechanism is proposed whereby polyphenyl ions are formed. The thermal decomposition of PtAr 2(PPh 3) 2 (Ar = Ph, m- and p-FC 6H 4) produces at 110–150°C yellow or red platinum cluster compounds.
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