Fast atom bombardment mass spectrometry of non-volatile organometallic compounds. Rhodium, iridium and platinum complexes containing a cumulene ligand
✍ Scribed by Thomas R. Sharp; Mitchell R. White; Jon F. Davis; Peter J. Stang
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 495 KB
- Volume
- 19
- Category
- Article
- ISSN
- 1076-5174
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✦ Synopsis
Fast atom bombardment (FAB) mass spectrometry has been used to examine a series of rhodium, iridium and platinum orgmometaUic complexes, in wbich a cumdene ligand is attached to the metal in either uor bonding fashion. The most intense ion formed in the rhodium and platinum series is the metal-bis(triphenylphosphine) ion, while the [Ir(P(C,&)3)2CO]' ion is most intense for the iridium series. "he platinum complexes show the most intense molecular ion peaks (up to 35% relative intensity), while the rhodium complexes show the least intense molecular ion pealrs. 'Lbe primary fragmentations of d l these complexes occur at the metal-ligand bonds. 'lbe cumulenic ligand i s lost as an intact anit in all cases. The FAB mass spectra of Rh(P(C&),),CI (Wilkinson's catalyst), Ir(P(C&)&cW (Vaska's compound), RII(P(C&)~)~COCI and Pt(P(c&)&(G&)-thetk precnrsors or related compounds to the organometallic complexes examined here--are included for comparison.