meso-5,10,15,20-四(3,4,5-三甲氧基苯基)卟啉的晶体和分子结构 |
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引用本文: | 焦向东 刘中立. meso-5,10,15,20-四(3,4,5-三甲氧基苯基)卟啉的晶体和分子结构[J]. 结构化学, 1996, 15(3): 205-209 |
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作者姓名: | 焦向东 刘中立 |
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摘 要: | 用X-射线测定了meso-5,10,15,20-四(3,4,5-三甲氧基苯基)卟啉的溶剂(正庚烷)合物(TTOMPP·2C_7H_(16))的晶体结构。实验表明,该化合物(C_(70)H_(86)N_4O_(12))的晶体属三斜晶系,空间群P1,a=8.749(6),b=15.129(6),c=16.449(3),a=60.07(3),β=70.64(4),γ=81.70(5),V=1779.6,M_r=1175.49,Z=1,D_c=1.097g/cm ̄3,μ=0.697cm ̄(-1),F(000)=630。讨论了卟啉环上取代基的电子和立体效应及卟啉与铁(Ⅲ)离子配位后铁(Ⅲ)离于对卟啉结构参数的影响。
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关 键 词: | 晶体结构,卟啉化合物,非共面共轭作用 |
Crystal and Molecular Structure of meso-5,10,15,20-tetra(3,4,5-trimethoxylphenyl)porphyrin |
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Abstract: | Crystal and molecular structure of meso-5,10,15,20-tetra(3,4,5-trimethoxylphenyl) porphyrin(TTOMPP.2C_7H_(16)) have been determined by single crystal X-ray diffraction technique.The crystal is triclinic,space group P1,a=8.749(6),b=15.129(6) ,c=16.449(3),α=60.07(3),β=70. 64(4),γ=81. 70(5)°,V= 1779. 6,Z=1,D_c= 1. 097 g/cm ̄(-3),F(000) =630.The structure was solved by direct methods and Fourier techniques. Least squares refinement on the basis of 3935 unique reflections with Fo≥6σ(F_0) led to final R=0.0873. Effect of substituents of porphyrin and the iron(Ⅲ) ion inserting in porphyrin ring on the structure parameters of porphyrin was discussed. |
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Keywords: | crystal structure porphyrin non-coplauar conjugation |
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