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以3,5-二溴吡啶和对甲基苯硼酸为原料,醋酸钯为催化剂,经Suzuki偶联反应合成了3,5-二(4-甲基苯基)吡啶(1),收率73%,其结构和性能经1H NMR,13C NMR,IR,元素分析,UV-Vis,FL和X-射线单晶衍射表征。结果表明:1(CCDC:1509844)属正交晶系,空间群P212121,晶胞参数a=6.447 8(12),b=7.240 2(14),c=29.890 0(6),β=90°。1为非平面刚性共轭分子,荧光量子产率13.9%。
3,5-Bis (4-methylphenyl) pyridine (1) was synthesized by Suzuki coupling reaction using 3,5-dibromopyridine and p-methylbenzeneboronic acid as raw materials and palladium acetate as catalyst. The yield of %. Its structure and properties were characterized by 1H NMR, 13C NMR, IR, elemental analysis, UV-Vis, FL and X-ray single crystal diffraction. The results show that: 1 (CCDC: 1509844) belongs to the orthorhombic system with space group P212121, unit cell parameters a = 6.447 8 (12) , b = 7.240 2 = 90 °. 1 is a non-planar rigid conjugated molecule, the fluorescence quantum yield of 13.9%.