| 基于2，6-二(2-苯并咪唑基)吡啶配体的锌(Ⅱ)、镍(Ⅱ)配合物的合成、晶体结构及荧光性质 |
| Syntheses, Crystal Structures and Photoluminescence Property of Zinc(Ⅱ) and Nickel(Ⅱ) Complexes with 2,6-Bis(2-benzimidazolyl)pyridine |
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| 摘要: 通过水热反应，合成了2，6-二(2-苯并咪唑基)吡啶(BBPY)和2，6-吡啶二羧酸(DPA)的锌(Ⅱ)配合物[Zn(BBPY)(DPA)]·H2O (1)及镍(Ⅱ)配合物[Ni(BBPY)2]SO4 (2)。对它们进行了元素分析、红外光谱、热重等表征，并用X-射线单晶衍射测定了配合物的晶体结构。配合物1属单斜晶系，Cc空间群，晶胞参数a=1.694 5(12) nm，b=1.272 1(9) nm，c=1.065 8(7) nm，β=92.506(12)°。配体2，6-二(2-苯并咪唑基)吡啶中的3个氮原子与2，6-吡啶二羧酸中的1个氮和2个羧基氧原子与锌(Ⅱ)配位，形成六配位的畸变八面体构型；配合物2也属单斜晶系，P21/c空间群，晶胞参数a=1.373 5(8) nm，b=1.383 8(8) nm，c=2.027 0(11) nm，β=106.133(10)°。配体中每个2，6-二(2-苯并咪唑基)吡啶中的3个氮原子与镍(Ⅱ)配位，也形成六配位的畸变八面体构型。室温固态荧光测试显示，配合物1在428.9 nm(λmax)处具有强的荧光发射。 |
| 关键词: 2，6-二(2-苯并咪唑基)吡啶 锌(Ⅱ)配合物 镍(Ⅱ)配合物 晶体结构 荧光性质 |
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| Abstract: Two new supermolecular complexes, [Zn(BBPY)(DPA)]·H2O (1) and [Ni(BBPY]SO4 (2) were synthesized by the hydrothermal reaction of o-phenylenediamine, 2,6-dipicolinic acid (DPA) with Zn(O2CCH3)2·H2O or NiSO4·6H2O in 10% H3PO4 solution. Their structures were characterized by elemental analysis, IR spectral analysis and thermogravimetric analysis. The single crystal structures were determined by the X-ray single crystal diffraction. Complex (1) belongs to monoclinic system and the space group is Cc, the parameters of the crystal cell for the compound are a=1.694 5(12) nm, b=1.272 1(9) nm, c=1.065 8(7) nm, β=92.506(12)°. The zinc (Ⅱ) is coordinated with three nitrogen atoms of one 2,6-bis(2-benzimidazolyl)pyridine (BBPY) molecule, one nitrogen atom and two oxygen atoms of one DPA molecule, generating a distorted octahedral coordination geometry. Complex (2) belongs to monoclinic system and the space group is P21/c, the parameters of the crystal cell for the compound are a=1.373 5(8) nm, b=1.383 8(8) nm, c=2.027 0(11) nm, β=106.133(10)°. The nickel (Ⅱ) is coordinated with six nitrogen atoms of two BBPY molecule, forming a distorted octahedral coordination geometry, too. Complex (1) shows a strong fluorescence-emission (λmax=428.9 nm) at solid state. CCDC: 787387, 1; 787388, 2. |
| Keywords: 2,6-bis(2-benzimidazolyl)pyridine zinc(Ⅱ) nickel(Ⅱ) crystal structure photoluminescence |
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| 郭应臣,陈书阳,邱东方,冯玉全,宋文河.基于2，6-二(2-苯并咪唑基)吡啶配体的锌(Ⅱ)、镍(Ⅱ)配合物的合成、晶体结构及荧光性质[J].无机化学学报,2011,27(8):1517-1522. |
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