Citation: YAN Juan-Zhi, ZHU Miao-Li, GAO Zeng-Qiang, DONG Yu-Hui. Construction and Photoluminescence Properties of Zn(Ⅱ)/Cd(Ⅱ) Complexes with 4-Amino-3,5-propyl-1,2,4-triazole Ligand[J]. Chinese Journal of Structural Chemistry, ;2014, 33(8): 1207-1214. shu

Construction and Photoluminescence Properties of Zn(Ⅱ)/Cd(Ⅱ) Complexes with 4-Amino-3,5-propyl-1,2,4-triazole Ligand

a.
a. Institute of Molecular Science, Shanxi University, Taiyuan 030006, China;
b.
b. Education Institute of Taiyuan University, Taiyuan 030001, China;
c.
c. Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

Corresponding author: ZHU Miao-Li,
Received Date: 21 May 2014
Available Online: 13 June 2014
Fund Project: Supported by the National Natural Science Foundation of China (No. 21271121) (No. 21271121) SRFDP (No. 20111401110002) (No. 20111401110002)Shanxi Scholarship Council of China (2013-026) (2013-026)

Reaction of ZnCl₂ and 4-amino-3,5-propyl-1,2,4-triazole (dpatrz) or CdCl₂, NaN₃ and dpatrz, in aqueous solution at room temperature yields two neutral clusters: a dinuclear complex [Zn₂(dpatrz)₂Cl₄] (I) and a linear trinuclear complex, [Cd₃(dpatrz)₄(N₃)₂Cl₄] (Ⅱ). Both complexes have been characterized by X-ray single-crystal diffraction, powder XRD, IR, elemental analysis, TG and fluorescence analysis. Complex I crystallizes in orthorhombic, space group Pbca with a=11.865(2), b=14.464(3), c=15.985(3) Å, V=2743.4(9) Å³, Z=4, C₁₆H₃₂N₈Cl₄Zn₂, M_r=609.4, D_c=1.475 g·cm³, μ=2.16 mm^-1, F(000)=1248, GOOF=1.091, the final R=0.0295 and wR=0.0665 for 1999 observed reflections (I>2σ(I)). Complex Ⅱ crystallizes in monoclinic, space group P2₁/c with a=11.408(2), b=15.211(3), c=18.152(6) Å, β=123.75(2)°, V=2619.1(1) Å³, Z=2, C₃₂H₆₄N₂₂Cl₄Cd₃, M_r=1236.05, D_c=1.567 g·cm³, μ=1.46 mm^-1, F(000)=1244, GOOF=1.042, the final R=0.0444 and wR=0.0913 for 3466 observed reflections (I>2σ(I)). The analysis of X-ray revealed that both structures lie about the inversion centers: complex I adopts two μ_1,2-triazole bridges linking two Zn(Ⅱ) ions and Ⅱ forms a linear trinuclear structure with four μ_1,2-triazoles and two μ_1,1-N₃^- bridging modes. There are different coordinated geometries for three Cd(Ⅱ) ions in Ⅱ: one is coordinated with an octahedral environment, and the other two are distorted tetragonal pyramids (τ=0.34). The hydrogen bonds of C-H…Cl and N-H…Cl lead to the discretes into a 3D supramolecular network in both compounds. The thermal stabilities and photoluminescence behaviors of them were also studied.
- triazole ring,
- dinuclear zinc compound,
- trinuclear cadmium compound,
- synthesis,
- crystal structure,
- photoluminescence
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