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A new mononuclear Cu(Ⅱ) dithiocarbamate complex CuI(prdtc)(phen) 1 (prdtc = N-pyrrolidinyldithiocarbamate, phen = 1,10-phenanthroline) was synthesized and characterized by elemental analysis, IR spectrum, and single-crystal X-ray diffraction. The crystal belongs to the monoclinic system, space group P21/c with a = 8.7110(9), b = 14.7143(14), c = 14.8507(15) A, β = 109.721(6)°, V = 1791.9(3) A3, Z = 4, Dc = 1.916 g/cm3, CI7H16CulN3S2, Mr = 516.89, λ(MoKa) = 0.71073A,μ = 3.178 mm^-1, F(000) = 1012, the final R = 0.0369 and wR = 0.0987. A total of 4082 unique reflections were collected, of which 2916 with I 〉 2σ(I) were observed. The Cu(Ⅱ) atom is five-coordinated in a distorted square-pyramidal geometry by one I atom in the apical position, two S atoms from a prdtc ligand and two N atoms from a phen ligand in the basal plane. There exist face-to-face aromatic π-π stacking interactions between adjacent phen ligands stabilizing the structure and making the complex assemble into a 1D structure along the a axis. It can be concluded that the difference of the dtc flexibility and reaction conditions result in the structural difference between complex 1 and CuI(dmdtc)(phen) (dmdtc = N, N-dimethyldithiocarbamate). 相似文献
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表面活性剂对染料敏化太阳能电池光电性能的提高 总被引:4,自引:2,他引:2
在硝酸/醋酸(HNO3/HAc)的水溶液中分别加入十二烷基苯磺酸钠(DBS)、十六烷基三甲基溴化铵(CTAB)、吐温20等不同类型的表面活性剂来水解钛酸四正丁酯制得前驱体溶液,通过水热法制备纳晶TiO2,并组装成染料敏化太阳能电池(DSSC)。通过XRD、SEM和UV-Vis对纳晶TiO2薄膜进行表征,并对DSSC进行光电流-光电压(I-V)曲线的测试,研究了不同类型的表面活性剂和不同浓度的CTAB对DSSC光电性能的影响。结果表明:加入阳离子表面活性剂CTAB时提高了DSSC的光电性能,而加入阴离子表面活性剂DBS和非离子表面活性剂吐温20时,DSSC的光电性能反而降低。随着CTAB浓度的增加,电池的光电性能先提高后下降,当cCTAB=0.08 mol·L-1时,DSSC的光电转化效率最高为5.76%,比不添加表面活性剂制备的纳晶TiO2所组装的DSSC的光电转化效率提高了约18%。 相似文献