吡咯甲亚胺镍/铜/锌配合物的合成、荧光性质及镍、铜配合物的晶体结构
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摘要
合成并表征了3个配合物NiL(1),Cu_2L_2(2)和Zn_2L_2(3)(H_2L=1,2-双(3,5-二甲基-4-乙氧羰基-吡咯-2-基)苯)。单晶衍射结果表明在配合物1中,脱质子配体用4个氮原子与金属Ni(Ⅱ)配位,中心金属离子为扭曲的平面正方形配位构型。而双核配合物2拥有双螺旋结构,每个配体桥联2个具有平面正方形配位构型的铜中心。推测配合物3和2的结构类似。此外还研究了配体和配合物的荧光性质。
Three complexes, NiL(1), Cu_2L_2(2) and Zn_2L_2(3) based on H_2L(where H_2L =1,2-bis(3,5-dimethyl-4-ethyloxy-carbonyl-pyrrol-2-yl-methyleneamino)benzene) were synthesized and characterized. The X-ray diffraction analyses results show that in complex 1, the deprotonated ligand uses all of its N atoms to bind to the Ni (Ⅱ) ion,which displays a distorted square planar geometry. However, the binuclear complex 2 possesses a doublestranded helical geometry, in which each Cu (Ⅱ) ion is also four-coordinated with an extremely distorted squareplanar geometry. The proposed structure of complex 3 is similar as that of 2. In addition, the fluorescence properties of all compounds are investigated in detail.
Three complexes, NiL(1), Cu_2L_2(2) and Zn_2L_2(3) based on H_2L(where H_2L =1,2-bis(3,5-dimethyl-4-ethyloxy-carbonyl-pyrrol-2-yl-methyleneamino)benzene) were synthesized and characterized. The X-ray diffraction analyses results show that in complex 1, the deprotonated ligand uses all of its N atoms to bind to the Ni (Ⅱ) ion,which displays a distorted square planar geometry. However, the binuclear complex 2 possesses a doublestranded helical geometry, in which each Cu (Ⅱ) ion is also four-coordinated with an extremely distorted squareplanar geometry. The proposed structure of complex 3 is similar as that of 2. In addition, the fluorescence properties of all compounds are investigated in detail.
引文
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