Synthesis, Crystal Structure and Luminescence Properties of a Cadmium(II) Complex Based on 2-Hydroxy-6-methylisonicotinic Acid
张甜;田爱琴;冯勋;Seik Weng Ng;田盼豪;王杨
a (College of Chemistry and Chemical Engineering, Luoyang Normal University,Luoyang 471022, China)
b (Basic Courses Education Department, Henan Forestry Vocational College, Luoyang 471002, China)
c (Department of Chemistry, University of Malaya, Kuala Lumpur 50603, Malaysia)
d (Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 80203, Saudi Arabia)
Synthesis, Crystal Structure and Luminescence Properties of a Cadmium(II) Complex Based on 2-Hydroxy-6-methylisonicotinic Acid
ZHANG Tian;TIAN Ai-Qin;FENG Xun;Seik Weng Ng,TIAN Pan-Hao;WANG Yang
a (College of Chemistry and Chemical Engineering,Luoyang Normal University, Luoyang 471022, China)
b (Basic Courses Education Department, Henan Forestry Vocational College, Luoyang 471002, China)
c (Department of Chemistry, University of Malaya, Kuala Lumpur 50603, Malaysia)
d (Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 80203, Saudi Arabia)
A new cadmium(II) complex [Cd(Hminic)(IP)]n (1, Hminic = 2-hydroxy-6-methyli- sonicotinic acid, IP = imidazo[4,5-f]-1,10-phenanthroline), has been synthesized by the reaction of a Hminic and auxiliary N-containing ligands with Cd(II) ion under hydrothermal conditions. The complex was studied by elemental analysis, IR spectroscopy and X-ray crystallography. It is formulated as C20H13CdN5O3, crystallizes in monoclinic system, space group C2/c with α = 9.6764(8), b = 26.767(2), c = 14.1332(11) Å and = 97.4510(10)º. V = 3629.7(5) Å3, Z = 8, Mr = 483.75, Dc = 1.770 g/cm3, F(000) = 1484 and µ = 1.237 mm-1. The final refinement gave R = 0.0309 and wR = 0.0703 for 4151 reflections with I > 2(I). In the structure of 1, two Cd(II) atoms are joined by a pair of μ2-hydroxyl oxygen atoms giving rise to a dinuclear Cd(II) unit which is bridged by Hminic linkers to form a 1D ladder-like polymer chain. The chelating ligand IP coordinated to the Cd(II) atom, and alternately attached to both sides of the ladder-like polymer chain. Adjacent chains are further bound together by strong intermolecular hydrogen bonds and face-to-face π•••π interactions, resulting in the formation of a 3D supramolecular architecture. Furthermore, the thermal stability and luminescent properties of this complex and the free ligands have been investigated.
Abstract：A new cadmium(II) complex [Cd(Hminic)(IP)]n (1, Hminic = 2-hydroxy-6-methyli- sonicotinic acid, IP = imidazo[4,5-f]-1,10-phenanthroline), has been synthesized by the reaction of a Hminic and auxiliary N-containing ligands with Cd(II) ion under hydrothermal conditions. The complex was studied by elemental analysis, IR spectroscopy and X-ray crystallography. It is formulated as C20H13CdN5O3, crystallizes in monoclinic system, space group C2/c with α = 9.6764(8), b = 26.767(2), c = 14.1332(11) Å and = 97.4510(10)º. V = 3629.7(5) Å3, Z = 8, Mr = 483.75, Dc = 1.770 g/cm3, F(000) = 1484 and µ = 1.237 mm-1. The final refinement gave R = 0.0309 and wR = 0.0703 for 4151 reflections with I > 2(I). In the structure of 1, two Cd(II) atoms are joined by a pair of μ2-hydroxyl oxygen atoms giving rise to a dinuclear Cd(II) unit which is bridged by Hminic linkers to form a 1D ladder-like polymer chain. The chelating ligand IP coordinated to the Cd(II) atom, and alternately attached to both sides of the ladder-like polymer chain. Adjacent chains are further bound together by strong intermolecular hydrogen bonds and face-to-face π•••π interactions, resulting in the formation of a 3D supramolecular architecture. Furthermore, the thermal stability and luminescent properties of this complex and the free ligands have been investigated.
This work was supported by the National Natural Science Foundation of China (No. 21273101), Tackle Key Problem of Science and Technology Project of Henan Province (No. 142102310483), Program for Science & Technology Innovation Talents and Research Team in Universities of Henan
(No. 2014HASTIT014 and 4IRTSTHN008), and Key Program of Foundation of Education Committee of Henan Province (No. 14B150033)
通讯作者:
fengx@lynu.edu.cn
E-mail: hnlyfx@163.com
引用本文:
张甜;田爱琴;冯勋;Seik Weng Ng;田盼豪;王杨. Synthesis, Crystal Structure and Luminescence Properties of a Cadmium(II) Complex Based on 2-Hydroxy-6-methylisonicotinic Acid[J]. 结构化学, 2016, 35(2): 279-285.
ZHANG Tian;TIAN Ai-Qin;FENG Xun;Seik Weng Ng,TIAN Pan-Hao;WANG Yang. Synthesis, Crystal Structure and Luminescence Properties of a Cadmium(II) Complex Based on 2-Hydroxy-6-methylisonicotinic Acid. CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2016, 35(2): 279-285.
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2016, Vol. 35 
