一种新型苯并咪唑衍生物及其锌配合物的合成与表征

Synthesis and Characterization of a Novel Derivative of Benzimidazole and Its Zinc Complex

以水杨酸、邻苯二胺及一溴辛烷为原料,制备了1-辛基-2-(2-羟基苯基)苯并咪唑(L)及其锌配合物(I),并用IR、 UV、1H NMR、元素分析等对其结构和性能进行表征,测定了L和I的荧光性,它们的最大荧光发射波长分别为392 nm、 450 nm和412 nm,测定了I的晶体结构,为单斜晶系,空间群C2/c,a=30.4244(15), b=9.7944(4), c=17.896(1), V=5296.6(5)3, Z=8,ρ=1.2705 g·cm-3,μ=1.149 mm-1,F=1 997.5, R=0.088 5, wR=0.2229, GOF=1.035, I的热失重分析表明其在室温下是热稳定的。

2-（1-Octyl-1 H-benzo[d]imidazole-2-yl）phenol（L） and its zinc complex（I） were prepared from salicylic acid, o-phenylenediamine and 1-bromooctane. Their structure and properties were characterized by IR, UV,1 H NMR, elemental analysis and so on. The luminescent properties of compound L and compound I were evaluated.Experimental data indicated that their maximum emission wavelength were 392 nm, 450 nm and 412 nm, respectively.The crystal structure of compound I was measured by X-ray single crystal diffraction and data analysis indicated that the compound I belonged to a monoclinic structure with a space group C2/c（a=30.424 4（15）A, b=9.794 4（4）A, c=17.896（1）, V=5296.6（5）A3, Z=8, ρ=1.270 5 g·cm^-3, μ=1.149 mm 1, F=199 7.5, R=0.088 5, w R=0.222 9, GOF=1.035）. The thermogravimetic data analysis of compound I indicated that it was thermostable at room temperature.