The structure of O-arylmercury derivatives of dihydroxy-9,10-anthraquinones and their reactions with anionsстатья
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Дата последнего поиска статьи во внешних источниках: 24 марта 2017 г.
Аннотация:The structure of mono- and di-O-arylmercury-derivatives of quinizarin (1,4-dihydroxy-9,10-anthraquinone) and anthrarufin (1,5-dihydroxy-9,10-anthraquinone) and their reactions with Br-, Cl-, OH-, and (BuO-)-Bu-t anions in the solid state and in aprotic solvents were examined by vibrational and electron spectroscopy. These reactions result in cleavage of the O-Hg bond. The formation of ions or contact ion pairs depends on the size and nature of the counterion; quinizarin dianions give very strong ion pairs with K+ cations, which do not cleave in DMSO. The electronic structure of mono- and dianions of the compounds studied is discussed.