Syntheses,Structures, and Photophysical Properties of Two Coordination Polymers Based on 2,3‐Dioxo‐1,2,3,4‐tetrahydroquinoxaline‐6‐carboxylic Acid |
| |
| Authors: | Gang Yuan Chao Zhang Kui‐Zhan Shao Xiang‐Rong Hao Zhong‐Min Su |
| |
| Institution: | 1. Faculty of Chemistry, Tonghua Normal University, Tonghua, P. R. China;2. Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin, P. R. China |
| |
| Abstract: | Two complexes based on the ligand 1,4‐dihydro‐2,3‐quinoxalinedione, namely Mn(H2L)2(H2O)2]n ( 1 ) and {Zn2(H2L)2(tz)2] · 5H2O}n ( 2 ) (H3L = 2,3‐dioxo‐1,2,3,4‐tetrahydroquinoxaline‐6‐carboxylic acid, Htz = 1,2,4‐triazole) were hydrothermally synthesized and characterized by elemental analyses, IR spectroscopy, as well as single‐crystal and powder X‐ray diffraction. Complex 1 exhibited a 1D comb‐like chain formed by H2L– anions linking MnII ions, whereas complex 2 was a 2D layer‐like structure with square‐shaped windows and outstretched arms built by combination of H2L– and tz– ligands with ZnII ions. The adjacent chains or layers connected with each other by intermolecular hydrogen bonding and π–π stacking to further extend to a 3D supermolecular framework. In addition, the thermal stabilities, luminescence properties, and optical energy gap of 1 and 2 were investigated in detail. |
| |
| Keywords: | 2 3‐Dioxo‐1 2 3 4‐tetrahydroquinoxaline‐6‐carboxylic acid Crystal structure Coordination polymers Manganese Zinc Photophysical properties |
|
|
