Unprecedented stacking of MV2+ dications and MV•+ radical cations in the mixed-valence viologen salt (MV)2(BF4)3 (MV = methylviologen)
Unprecedented stacking of MV2+ dications and MV•+ radical cations in the mixed-valence viologen salt (MV)2(BF4)3 (MV = methylviologen)
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DOI：
10.1039/c3cc45690k
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发表时间：
2013-01-01
影响因子：
4.9
通讯作者：
Pasquier, Claude
中科院分区：
文献类型：
--
作者：
Leblanc, Nicolas;Mercier, Nicolas;Pasquier, Claude
采用慢液气扩散法制备了混价紫离子盐（MV）(2)(BF4)(3)(1)和自由基阳离子盐（MV）（BF4）(2)的结晶。这两种结构都包含M中心点+自由基阳离子(2)或MV中心点+和MV2+实体(1)的交替堆叠。短的层内分子间分离（3.23埃）前所未有地揭示了1中MV2+和MV中心点+之间的强相互作用。
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 M center dot+ radical cations (2) or alternating MV center dot+ and MV2+ entities (1). A short intrastack intermolecular separation (3.23 angstrom) unprecedently reveals strong interactions between MV2+ and MV center dot+ in 1.