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首页> 外文期刊>Bulletin of the Chemical Society of Japan >Amphiphilic Tetrathiafulvalene Derivative:Charge-Transfer Complexation Behavior in Solutions
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Amphiphilic Tetrathiafulvalene Derivative:Charge-Transfer Complexation Behavior in Solutions

机译：两亲性四硫富瓦烯衍生物：溶液中电荷转移的络合行为

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摘要

An amphiphilic tetrathiafulvalene(1)was prepared by condensation of tetrathiafulvalene-4-carboxylic acid with reduced Triton X-100 to avoid crystallization.Its charge-transfer(CT)complexation behaviors were examined with a strong electron acceptor,i.e.,2,3-dichloro-5,6-dicyano-l,4-benzoquinone(DDQ),in solutions.Although tetrathiafulvalene,(4-tetrathiafulvalenyl)methyl acetate(2),and methyl tetrathiafulvalene-4-carboxylate(4)reacted with DDQ to produce a dark red precipitates in CHCl_3 and(4-tetrathiafulvalenyl)methyl stearate(3)with DDQ formed black red colloidal dispersions in CHCl_3,an equimolar amount of DDQ with 1 in CHCl_3 formed a dark red solution without any precipitates.The UV spectrum of the solution of 1 and DDQ in CHCl_3 shows a broad peak in near-IR regions.The absorption maximum at 1300 nm(epsilon = 3.8 x 10~2 M~(-1)cm~(-1))that is tailing to beyond 2000 nm is derived from pi-stacked arrangement of the TTF moiety and DDQ.UV-vis absorption spectra of 1 with DDQ in several organic solvents,i.e.,acetonitrile,acetone,CH_2Cl_2,toluene,and CC1_4,show that the CT complexation behavior of 1 was highly dependent on the solvent polarity.
机译：通过将四硫富瓦烯-4-羧酸与还原的Triton X-100缩合避免结晶来制备两亲性四硫富瓦烯（1），并用强电子受体2,3-研究了其电荷转移（CT）络合行为。溶液中加入二氯5,6-二氰基-1,4-苯醌（DDQ）。虽然四硫富瓦烯，（4-四硫富瓦烯基）乙酸甲酯（2）和四硫富瓦烯-4-羧酸甲酯（4）与DDQ反应生成在CHCl_3和（4-四硫富瓦烯基）硬脂酸酯（3）中，深红色沉淀与DDQ在CHCl_3中形成黑红色胶体分散体，等摩尔量的DDQ在CHCl_3中形成1的暗红色溶液，形成暗红色溶液，没有任何沉淀。 CHCl_3中1和DDQ的比值在近红外区域出现一个宽峰。最大吸收在1300 nm（ε= 3.8 x 10〜2 M〜（-1）cm〜（-1））逐渐超过2000 nm。是从TTF部分和DDQ的π堆叠排列中得出的。乙腈，丙酮，CH_2Cl_2，甲苯和CC1_4等有机溶剂显示CT络合行为1高度依赖于溶剂极性。

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