一个基于双(2-苯并咪唑基)刚性配体Zn(Ⅱ)配合物:合成、晶体结构及光致发光性质(英文) |
A Zinc(Ⅱ) Complex Based on a Rigid Ligand Containing Bis(2-benzimidazolyl) Groups: Synthesis, Crystal Structure, and Photoluminescent Property |
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摘要: 合成了一个配合物[Zn(OBimB)Cl2]·DMF·H2O(OBimB为1,2-双(2-苯并咪唑基)苯),并用X射线单晶衍射仪测定了其晶体结构。晶体属单斜晶系,P21/c空间群,晶胞参数为:a=1.251 22(9) nm,b=1.039 80(7) nm,c=1.827 94(11) nm,β=95.508(2)°,V=2.367 2(3) nm3,Z=4,Dc=1.509 g·cm-3。最后精修结果为:R1=0.043 0,wR2=0.093 9。在配合物结构中每个Zn(Ⅱ)原子分别与2个来自V构型OBimB配体的N原子、2个氯离子进行配位,形成了1个扭曲的四面体结构。配体和配合物的光致发光测试显示光发射属于配体的分子内荧光。 |
关键词: 锌(Ⅱ)配合物 双苯并咪唑 晶体结构 光致发光 |
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Abstract: A complexe [Zn(OBimB)Cl2]·DMF·H2O based on a rigid bis(benzimidazoles) ligand OBimB (OBimB=1,2-bis(2-benzimidazolyl)benzene) has been synthesized and structurally characterized by X-ray single crystal diffractometry. The complex crystallizes in monoclinic system, P21/c space group with the cell parameters of a=1.251 22(9) nm, b=1.039 80(7) nm, c=1.827 94(11) nm, β=95.508(2)°, V=2.367 2(3) nm3, Z=4, and Dc=1.509 g·cm-3, the final R1=0.043 0, wR2=0.093 9. In the structure of the complex the Zn atom is coordinated by two N atoms from a twisted V-shape conformational OBimB ligand and two Cl- anions in a distorted tetrahedral geometry. The photoluminescence measurements of the ligand and the complex show that the emissions are assigned to the intraligand fluorescence. CCDC: 861572. |
Keywords: zinc(Ⅱ) complex bis(benzimidazoles) crystal structure photoluminescenc |
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邓月义,吴鸿志,金燕玲,刘法谦.一个基于双(2-苯并咪唑基)刚性配体Zn(Ⅱ)配合物:合成、晶体结构及光致发光性质(英文)[J].无机化学学报,2012,28(11):2463-2467. |
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