Electrocrystallization of three hydroxylated donor molecules derived from tetrathiafulvalene (TTF) or ethylenedithiotetrathiafulvalene (EDT-TTF), i.e. Me3TTF-CH2OH, EDT-TTF(CH2OH)2 and TTF(CH2OH)4, in the presence of [n-Bu4N+]2[Mo6O19]2â afforded 2â¶1 cation radical salts, [donor+Ë]2[Mo6O19]2â, whose crystal structures have been solved by X-ray diffraction. In the three different salts complex hydrogen bond networks develop in the solid state where the oxygen atoms of both the hydroxyl groups and the [Mo6O19]2â anions act as hydrogen bond acceptors. The observed hydrogen bonding directed toward one surface, bridging oxygen atom of [Mo6O19]2â is rationalized by an analysis of ab initio calculations of the distribution of electrostatic potentials.
在[n-Bu4N+]2[Mo6O19]2â的存在下,从四
噻吩富
戊二烯(
TTF)或亚乙基二
硫代四
噻吩富
戊二烯(EDT-
TTF)衍生的三种羟基化供体分子(即Me3
TTF-CH2OH、EDT-
TTF(CH2OH)2 和
TTF(CH2OH)4,在[n-Bu4N+]2[Mo6O19]2â的存在下生成 2â¶1 阳离子自由基盐[供体+Ë]2[Mo6O19]2â,其晶体结构已通过 X 射线衍射解决。在这三种不同的盐中,羟基和[Mo6O19]2â阴离子的氧原子都是氢键的受体,在固态下形成了复杂的氢键网络。通过对静电位分布的 ab initio 计算分析,可以合理地解释观察到的指向 [Mo6O19]2â 的一个表面桥接氧原子的氢键。