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Mass spectrometry of metal compounds: II—mass spectrometric studies of [CF 3 EMn(CO) 4 ] 2 , [CF 3 EFe(CO) 3 ] 2 (E = S, Se), CF 3 SeFe(CO) 2 C 5 H 5 and CF 3 SCr(NO) 2 C 5 H 5
Author(s) -
Chaudhuri M. K.,
Dasgupta H. S.,
Roy N.,
Khathing D. T.
Publication year - 1981
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210161206
Subject(s) - cyclopentadienyl complex , mass spectrum , chemistry , metal , mass spectrometry , ion , pyrolysis , electron ionization , analytical chemistry (journal) , spectral line , metal ions in aqueous solution , carbon fibers , inorganic chemistry , medicinal chemistry , catalysis , organic chemistry , materials science , ionization , chromatography , physics , astronomy , composite number , composite material
The electron impact induced mass spectra of [CF 3 SMn(CO) 4 ] 2 , [CF 3 SeMn(CO) 4 ] 2 , [CF 3 SFe(CO) 3 ] 2 , [CF 3 SeFe(CO) 3 ] 2 , CF 3 SeFe(CO) 2 C 5 H 5 and CF 3 SCr(NO) 2 C 5 H 5 are reported. These compounds exhibit weak molecular ion peaks and undergo preferential loss of CO or NO groups. The CO or NO free fragments suffer typical loss of ECF 2 (E = S, Se) with the simultaneous shift of F from carbon to metal. The ions [FFeC 5 H 5 ] + and [FCrC 5 H 5 ] + in the spectra of the cyclopentadienyl compounds prefer expulsion of π‐cyclopentadienyls. The pyrolysis effects on the spectra of the compounds have been studied. An increase in temperature eases the expulsion of ECF 2 groups from all the compounds and favors the formation of [Fe(C 5 H 5 ) 2 ] + and [Cr(C 5 H 5 ) 2 ] + in the cyclopentadienyl compounds.