Unprecedented stacking of MV2+ dications and MV˙+ radical cations in the mixed-valence viologen salt (MV)2(BF4)3 (MV = methylviologen).
نویسندگان
چکیده
Using a slow liquid-gas diffusion method, the mixed-valence viologen salt (MV)2(BF4)3 (1) and the radical cation salt (MV)(BF4) (2) are crystallized. Both structures contain regular stacks of MV˙(+) radical cations (2) or alternating MV˙(+) and MV(2+) entities (1). A short intrastack intermolecular separation (3.23 Å) unprecedently reveals strong interactions between MV(2+) and MV˙(+) in 1.
منابع مشابه
A Study of the Permeability of the Cytoplasmic Membrane of Escherichiu coli to Reduced and Oxidized Benzyl Viologen and Methyl Viologen Cations: Complications in the Use of Viologens as Redox Mediators for Membrane-Bound Enzymes
The bipyridilium compounds Methyl Viologen and Benzyl Viologen (MV and BV) are widely used biochemically in the study of oxidoreduction enzymes. The doubly charged oxidized species, MVZ+ and BVzf, are reduced at suitably low potentials to highly coloured singly charged stable free radicals, MV+ and BV+. Many of the biochemical uses of Viologens are with membranous systems, such as chloroplasts,...
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ورودعنوان ژورنال:
- Chemical communications
دوره 49 87 شماره
صفحات -
تاریخ انتشار 2013