HYDROGEN-BONDED COMPLEXES INVOLVING THE METAL ATOM AND PROTONATION OF METALLOCENES OF THE IRON SUBGROUPстатья
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Дата последнего поиска статьи во внешних источниках: 24 марта 2017 г.
Аннотация:The interactions were studied of metallocenes and their permethylated analogues of the iron subgroup (M = Fe, Ru, Os) with trifluoroacetic acid in low-polar media. IR and UV-Vis spectra, over a wide temperature range, proved that formation of the molecular hydrogen-bonded complex (OH...M) is the first stage of protonation. The ionic H-complexes of the M(+)H...O- type are formed as a result of proton transfer. The influences of the metal, the substituents on the Cp-ring and of the concentration of acid on this acid-base equilibrium are discussed.