新型单核镍配合物的原位合成及其荧光性能

以3,5-二氯水杨醛和碳酰肼为原料，DMF和乙腈为溶剂，硝酸镍为离子源，采用溶剂热法原位合成了一个新型的单核席夫碱配合物Ni(L){1， H₃L=(3,5-二氯-2-羟基-苯亚甲基)［N′-(3,5-二氯-2-羟基-苯亚甲基)］-1-氨基-N-氨基甲酸},其结构经FT-IR,元素分析和X-射线单晶衍射表征。1(CCDC: 1 044 165)属单斜晶系，空间群P2₁/m，晶胞参数a=10.416 6(5) ， b=6.516 2(3) ， c=13.479 1(6) ， β=109.330(5)°， V=863.34(7) ³， Z=2， Dc=1.834 g·cm^-3， μ=1.764 mm^-1， F(000)=474。 Ni(III)与L^3-中的两个氮原子和两个氧原子配位，形成一个平面的四配位结构。用荧光发射光谱研究了1的荧光性能。结果表明：在最大激发波长（435 nm）激发下，1的DMF溶液在500 nm附近显示出较强的荧光性能。

In-situ Synthesis and Fluorescence Properties of A Novel Mononuclear Nickel Complex

A novel mononuclear Schiff base complex, Ni(L){1, H₃L=(3,5-dicloro-2-hydroxy-benzylidene)［N′-(3,5-dicloro-2-hydroxy-benzylidene)］-1-amino-N-amino formimidic acid}, was synthesized through solvothermal  in-situ synthesis method, using 3,5-dichloro-salicylaldehyde and carbohydrazide as raw materials, DMF and acetonitrile as solvent, nickel nitrate as ion source. The structure was characterized by FT IR, elemental analysis and single-crystal diffraction. 1(CCDC: 1 044 165) belongs to monoclinic system and space group P2₁/m. The cell parameters of 1 were a=10.416 6(5) ， b=6.516 2(3) ， c=13.479 1(6) ， β=109.330(5)°， V=863.34(7) ³， Z=2， Dc=1.834 g·cm^-3， μ=1.764 mm^-1， F(000)=474. Nickel(III) was coordinated with two nitrogen atoms and two oxygen atoms from L^3-to form a rectangle-plane. The fluorescence property of 1 was investigated by FL. The result showed that 1 exhibited strong fluorescent property around 500 nm upon an excitation band at 435 nm in DMF.