Citation: CHEN Yan-Guo, WANG Qi-Ying, TANG Qiang, HONG Peng, HU Chuan-Qun. Syntheses, Crystal Structures and Fluorescence Properties of Two Mononuclear Copper(II) Compounds[J]. Chinese Journal of Structural Chemistry, ;2016, 35(12): 1885-1893. doi: 10.14102/j.cnki.0254-5861.2011-1142 shu

Syntheses, Crystal Structures and Fluorescence Properties of Two Mononuclear Copper(II) Compounds

College of Material and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China

Corresponding author: CHEN Yan-Guo, chenyg1965@163.com
Received Date: 19 January 2016
Accepted Date: 8 June 2016

Fund Project: Natural Foundation of Hubei Province 2010CDA020Key Foundation of Industry-University-Research Cooperation of Education Department, Hubei Province CXY2009A010Research Fund for the Doctor Program of Hubei University of Technology BSQD12139Ministry of Science and Technology Small and Medium-sized Enterprise Venture Funds 12C26214204453

Figures(6)

Two new compounds, 1 ([Cu(IDB)₂]Cl₂·2CH₃CH₂OH·2H₂O (IDB=N,N-di(2-benzimidazolylmethyl)imine]) and 2 ([Cu(EDTB)]·2[C₆H₄(OH)COO]·6H₂O (EDTB=N,N,N',N'-tetrakis-[(2-benzimidazolyl)methyl]-1,2-ethanediamine]), have been synthesized and their crystal structures were determined by single-crystal X-ray diffraction. Crystal 1 belongs to the triclinic system, space group P>1 with a=9.565(2), b=9.863(2), c=10.252(3)Å, α=81.915, β=88.330, γ=87.347°, V=956.28(40)Å³, Z=1, F(000)=427, D_c=1.419 g/cm³, M_r=817.27 and μ(MoKα)=0.764 mm^-1. The final R indices (I>2σ(I)):R=0.0505, wR=0.1417; R indices (all data):R=0.0591, wR=0.1525. Crystal 2 is of triclinic system, space group P>1 with a=11.487(3), b=13.396(4), c=17.977(5)Å, α=73.899(5), β=86.629(5), γ=65.018(4)°, V=2403.8(12)Å³, Z=2, F(000)=1072, D_c=1.417 g/cm³, M_r=1025.54, μ(MoKα)=0.528 mm^-1. The final R indices (I>2σ(I)):R=0.0769, wR=0.163 2; R indices (all data):R=0.0769, wR=0.1632. The two compounds exhibit mononuclear structures. The copper(II) atom of crystal 1 is six-coordinated by four nitrogen atoms of benzimidazole groups and two amine nitrogen atoms from the ligand IDB to adopt a distorted octahedral coordination geometry. The copper(II) atom of crystal 2 is six-coordinated by four nitrogen atoms of benzimidazole groups and two amine nitrogen atoms from the ligand EDTB to show a distorted octahedral coordination geometry. Particularly, the two compounds exhibit fluorescent properties at room temperature in ethanol.
- mononuclear copper (II) compound,
- synthesis,
- crystal structure,
- fluorescence
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