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Pb(Ⅱ) Coordination Complexes Based on 5-Methyl-1H-pyrazole-3-carboxylic Acid: Syntheses, Structures and Luminescent Properties
Author NameAffiliationE-mail
CHENG Mei-Ling School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu 213164, China  
YANG Bing-Xin School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu 213164, China  
TANG Li-Zhi-Peng School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu 213164, China  
QIN Meng-Na School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu 213164, China  
LIU Qi School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu 213164, China
State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China 
liuqi62@163.com 
TANG Xiao-Yan School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu 213164, China
School of Chemistry and Materials Engineering, Changshu Institute of Technology, Changshu, Jiangsu 215500, China 
 
Abstract: In the presence of different N ancillary ligands, treatment of H2MPCA with corresponding Pb(Ⅱ) salts afforded two complexes,[Pb(HMPCA)2(H2O)2]·H2O (1) and[Pb(HMPCA)2(phen)]·H2O (2) (H2MPCA=5-methyl-1H-pyrazole-3-carboxylic acid, phen=1,10-phenanthroline). In dinuclear complex 1, the[Pb(μ2-HMPCA))]2 units are extended into a 1D chain structure by a pair of Pb…O secondary bonds. Then, these 1D chains are further assembled to a 2D supramolecular structure through intermolecular hydrogen bonds. While complex 2 displays a mononuclear structure, the Pb…O secondary bonds emerged in the Pb2O2 rhomb, which are further packed into a 3D supramolecular framework though π…π interactions and hydrogen bonds. The thermal and luminescent properties of complexes 1 and 2 have also been investigated.
Keywords: lead(Ⅱ)  5-methyl-1H-pyrazole-3-carboxylic acid  crystal structure  luminescent property
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CHENG Mei-Ling,YANG Bing-Xin,TANG Li-Zhi-Peng,QIN Meng-Na,LIU Qi,TANG Xiao-Yan.Pb(Ⅱ) Coordination Complexes Based on 5-Methyl-1H-pyrazole-3-carboxylic Acid: Syntheses, Structures and Luminescent Properties[J].Chinese Journal of Inorganic Chemistry,2019,35(4):687-694.
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Chinese Journal of Inorganic Chemistry