ISSN:
0030-493X
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
A fast atom bombardment (FAB) mass spectrometric study was carried out on the two O-coordinated carbonyl-stabilized arsonium ylide Pt(II) complexes {(dppe)PtCI[OC(R)C(H)AsPh3]}BF4 ((dppe) = Ph2PCH2CH2Ph2; R = CH3 (1), OCH3 (3)) and on the two corresponding C-coordinated isomers {(dppe)PtCl[Ph3AsC(H)COR]}BF4 (R = CH3 (2), OCH3 (4)). The mass spectral analysis of complexes 1 and 2 reveals that it is possible to distinguish the two isomeric forms mainly on the basis of the relative abundance of the protonated triphenylarsine oxide at m/z 323 while the different coordination modes of the ylide in complexes 3 and 4 are evidenced by the different fragmentation pathways of these two derivative;. Further, the reaction between [(dppe)PtCl]2(BF4)2 and the appropriate ylide performed under FAB conditions indicates that in both cases the first complex formed is the C-coordinated isomer, in agreement with that observed in the condensed phase.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/oms.1210271105
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