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Mass spectral studies of some complexes of niobium(V) and tantalum(V) with chloro, alkoxy, acetylacetonato or salicylaldehydato ligands
Author(s) -
Stefanović D.,
Stambolija Lj.,
Katović V.
Publication year - 1973
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.1210071209
Subject(s) - tantalum , niobium , fragmentation (computing) , mass spectrum , chemistry , metastability , metal , ion , alkoxy group , hydrogen atom , hydrogen , crystallography , spectral line , stereochemistry , medicinal chemistry , physics , organic chemistry , alkyl , astronomy , computer science , operating system
Mass spectra of complex compounds of niobium (V) and tantalum (V) of the type MCl 2 (OR) 2 L have been measured, where M = Nb and Ta; HL = 2,4‐pentanedione, R = CH 3 , C 2 H 5 and HL = Salicyladehyde, R = CH 3 . The fragmentation upon electron‐impact depends on the nature of the ligands and to a minor extent on the central metal atom. A fragmentation scheme has been constructed on the basis of measurements of metastable transitions and accurate masses of important fragment ions. Rearrangement reactions involving hydrogen migration among ligands have been observed.