Coordination architectures of copper(II) coordination polymers constructed from bifunctional 5-substituted-tetrazole-carboxylate ligands

• Published in: Transition metal chemistry (Weinheim) 2016-02, Vol.41 (1), p.35-43
• Main Authors: Yang, Jie, Wang, Jing, Wei, Bo, Shen, Lei, Min, Yu-Ting, Cheng, Hong-Jian, Xu, Yue, Huang, Jing, Wang, Chen-Chen, Zhang, Xi, Wu, Mu-Lan, Li, Qiao-Yun, Yang, Gao-Wen
• Format: Article
• Language: English
• Subjects: Catalysis; Chemistry; Chemistry and Materials Science; Inorganic Chemistry; Organometallic Chemistry; Physical Chemistry
• ISSN: 0340-4285; 1572-901X
• DOI: 10.1007/s11243-015-9994-2

Three complexes of the bifunctional 5-substituted-tetrazolate-carboxylate ligands 3-(5-amino-2H-tetrazol-1(5H)-yl) propanoic acid (Hatzp), 5-(2-pyrimidyl)tetrazole-1-acetic acid (Hpymtza) and 1H-tetrazolate-5-acetic acid (Htza), namely mononuclear [Cu(atzp) 2 (H 2 O) 4 ]·2H 2 O ( 1 ), a 1D polymeric chain structure [Cu(pymtza) 2 ]·2H 2 O ( 2 ) and a 2D layer network [Cu(tza) 2 ]·2DMF ( 3 ), were prepared and structurally characterized. The structures of these complexes are controlled by not only the different coordination modes of the tetrazole-carboxylate ligands but also the different 5-substituents of the tetrazole ring. Three different coordination modes of the tetrazolate-carboxylate ligands were observed: a tridentate N4-monodentate mode in complex 1 , a tridentate N,N-chelated-O-bridged mode in complex 2 and a N,O-chelated-N-bridged mode in complex 3 . Extensive hydrogen bonds play an important role in the construction of the supramolecular networks. The complexes show ligand-centered luminescence at room temperature in the solid state.