联氮香兰素的合成、晶体结构和光学性质(英文)

Synthesis、Crystal Structure and Optical Properties of O-vanillin Azine

利用在甲醇中香兰素和肼反应合成了目标化合物—联氮香兰素.用单晶X-射线衍射法测定了化合物晶体结构,结果表明化合物晶体为单斜晶系,P21/n空间群,a=0.598 83(6),b=1.865 4(2),c=0.686 75(7)nm,β=106.42(1)°,V=0.73584 (13)nm3,Z=2,Dc=1.355 g/cm3,F(000)=316,μ(MoKα)=0.099 mm-1.可观测衍射点1 292个,最终限制因子R=0.0736,ωR=0.1595.

The title compound, o-vanillin azine, has been prep ared by the reaction of o-vanillin with 0.5 equiv of hydrated hydrazine in etha nol. The new compound (C_16 H_16 N_2O_4, Mr = 300.31) has bee n de termined by single-crystal X-ray diffraction method. The crystal belongs to mo noclinic, space group P2_1/n with a = 5.988 3(6), b = 18.654(2) , c = 0.686 75(7) nm, β = 106.42(1)°, V = 0.735 84(13) nm 3, Z = 2, Dc = 1.355 g/cm^3, F(000) = 316 and μ(MoKa) = 0.099 mm~ -1(λ= 0.071 073 nm), R = 0.073 6 and wR = 0.159 5 for 1 292 obser ved reflections (I > 2σ( I )).