2-苯基-咪唑[4,5]-1,10-菲咯啉的合成和晶体结构

Synthesis and Crystal Struture of 2-phenyl-1H-Imidazo[4,5-f]1,10-Phenanthrdine

以1,10-菲咯啉-5,6-二酮为原料,合成了标题化合物。通过质谱、1H N M R对其进行了表征。X-射线单晶衍射测试进一步确定了化合物的结构,结果表明：化合物为单斜晶系,空间群P 21/n,晶胞参数：a=1.1492（5）nm,b=1.2622（6）nm,c=1.2506（5）nm,α=90.00°,β=100.354（12）°,γ=90.00°,V=1.784nm 3,Z=4,D c=1.274m-3,μ=0.082m m-1,最终偏离因子：R=0.0467,w R=0.1386。

In the sequential logic circuit design,often need to ensure that the circuit has self-starting ability.Karnaugh method analysis and statechar unraveling anatlysis can realize self-starting design of the sequential logic circuit.The essence of two methods are designated invalid state for an effective state,but in the use of specific and differences.