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以对氨基酚、对硝基氯苯、8-羟基喹啉、4-硝基邻苯二甲腈以及醋酸锌为主要原料,合成了不对称2(3)-[二(对硝基苯基)氨基苯氧基]-9(10),16(17),23(24)-三(8-喹啉氧)锌酞菁(TQPc).用核磁、红外、元素分析等表征TQPc以及前驱化合物结构,TQPc的电子吸收光谱表现出了强烈的π-π*跃迁现象.利用紫外光谱研究了其N,N-二甲基甲酰胺(DMF)和CH2Cl2溶液的吸收光谱性质,结果表明在DMF中主要以单体的形式存在,浓度在0.223×10-5～2.587×10-5mol/L时,TQPc在CH2Cl2溶液中有二聚体的存在,经计算得到平衡常数为0.24×105L/mol.用循环伏安法研究了TQPc的氧化还原行为,结合差分伏安数据计算了能级结构,LUMO(-1.04 V vs SCE)和HOMO(0.78 V vs SCE)与纳米TiO2导带能级匹配,可作为性能较好的电荷传输材料用于染料敏化太阳能电池.
The synthesis of asymmetric 2 (3) - [bis (p-nitrophenyl) p-nitrophenyl ) (TQPc) were synthesized and characterized by NMR, IR, elemental analysis and other methods. TQPc and precursor compounds Structure, the TQPc electron absorption spectrum showed a strong π-π * transition phenomenon.The absorption spectra of its N, N-dimethylformamide (DMF) and CH2Cl2 solutions were studied by UV spectroscopy. The results showed that the absorption spectra of TQPc in DMF Mainly exist in the form of monomer. When the concentration is 0.223 × 10-5 ~ 2.587 × 10-5mol / L, TQPc has a dimer in CH2Cl2 solution, and the equilibrium constant is 0.24 × 105L / mol. The cyclic voltammetry was used to investigate the redox behavior of TQPc. The energy level structure was calculated with differential voltammetry. LUMO (-1.04 V vs SCE) and HOMO (0.78 V vs SCE) Better performance of charge transport materials for dye-sensitized solar cells.