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- W2090901830 abstract "Abstract Doubly charged ions observed in the mass spectra of trimetal carbonyl compounds of the iron group and of their derivatives at different ionizing energy are reported. In the case of Os 3 (CO) 12 , Ru 3 (CO) 12 , RuOs 2 (CO) 12 and Ru 2 Os(CO) 12 the abundances of the doubly charged ions decrease gradually when osmium atoms are substituted by ruthenium atoms and when ionizing electrons energy is decreased. They follow a characteristic trend in which the highest charge is transported by fragments containing a number of carbonyl groups which increases with decreasing ionizing energy. The mass spectrum of Fe 3 (CO) 12 contains very weak doubly charged species. H 2 Os 3 (CO) 12 exhibits a behaviour similar to that of Os 3 (CO) 12 , while Os 3 (CO) 10 Br 2 and Os 3 (CO) 12 Br 2 show that different structures do not appreciably affect the occurrence of doubly charged ions. The strong increase of the stabilization of doubly charged species, observed in the mass spectra of Fe 3 (CO) 8 [C 2 (C 6 H 5 ) 2 ] 2 , Ru 3 (CO) 8 [C 2 (C 6 H 5 ) 2 ] 2 and Os 3 (CO) 8 [C 2 (C 6 H 5 ) 2 ] 2 , shows a drastic influence of the organic ligands superimposed to that of the nature of metal atoms. In the mass spectrum of Os 3 (CO) 8 [C 2 (C 6 H 5 ) 2 ] 2 at 70 eV a rather strong [M 8CO] 3+ is observed." @default.
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- W2090901830 date "1988-05-01" @default.
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- W2090901830 title "Multiply charged ions in the mass spectra of trinuclear carbonyl metal compounds and their derivatives" @default.
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- W2090901830 doi "https://doi.org/10.1016/s0020-1693(00)82014-9" @default.
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