基于四硫富瓦烯新型弯曲电子给体的合成、结构与氧化还原性质

Synthesis,Structure and Redox Property of a New Bent Tetrathiafulvalene-Based Donor Molecule

四硫富瓦烯(TTF)和其衍生物是优良的电子给体.利用TTF的衍生物在甲醇钠的条件下,和氯化锌以及四丁基溴化铵生成锌盐,再和二硒唑的四氟化硼化合物在低温下生成化合物1.化合物1经元素分析、核磁共振氢谱、质谱和X衍射单晶结构确定.化合物为正交晶系,空间群Pna2_1,晶胞参数:a=1.801 1(7)nm,b=2.0351(7)nm,c=0.4067(2)nm,Z=4,V=1.4907(10)nm^3,D_c=2.176 g·cm^(-3),F(000)=944,u=5.655 mm^(-1),2762个可观测点[I>2σ(I)],精修的最终残余因子为:R=0.0773,wR=0.1779.循环伏安结果表明化合物1有两对可逆氧化还原峰.

A new bent donor based on ethylenedioxytetrathiafulvalene （EDO-TTF） and 1,3-diselenole group was synthesized and structurally characterized by elemental analysis, 1H NMR, 13C NMR, MALDI-TOF MS and X-ray single diffraction analysis. The crystal of the compound 1 belongs to monoclinic space group Pna21 with cell parameters a= 1.8011（7） nm, b=2.0351（7） nm, c=0.4067（2） nm, Z=4, V= 1.4907（10） nm3, Dc=2.176 gocm-3, F（000） = 944,μ= 5.655 mm-1, R=0.0773, wR=0.1779 [I〉2σ（/）]. Compound 1 displayed two reversible redox peaks corresponding to the TTF/TTF＋ and TTF＋/TTF2＋.