Uranyl-containing heterometallic coordination polymers based on 4-(4′-carboxyphenyl)-1,2,4-triazole ligand: structure regulation through subtle changes of the secondary metal centers was written by Zhao, Ran;Mei, Lei;Hu, Kong-Qiu;Wang, Lin;Chai, Zhi-Fang. And the article was included in Journal of Coordination Chemistry in 2018.Reference of 157069-48-2 This article mentions the following:
Three uranyl-containing coordination polymers, Cd(UO2)2(cpt)4(bdc)(H2O)2 (1), Zn(UO2)2(cpt)4(bdc)(H2O)2 (2) and UO2(OH)(cpt) (3, Hcpt = 4-(4′-carboxyphenyl)-1,2,4-triazole, H2bdc = 1,4-benzenedicarboxylic acid), have been synthesized under hydrothermal conditions by employing a bifunctional ligand (Hcpt) with both O-donors and N-donors. Compound 1 represents a 3-D framework with the point symbol of (62·84)(62·8)2 by the intersection of two sets of 1-D [Cd2(UO2)2(cpt)4(bdc)]n loop chains extended along different directions. Compound 2 exhibits a 2-nodal (3,4)-connected 2-D network with the point symbol (4·62)2(42·62·82). Compound 3 shows a 2-D network by the assembly of uranyl dimers and the cpt– anions. Although 1 and 2 have similar chem. formulas and the same coordination modes of ligands and metal centers, they possess totally different mol. frameworks, derived from the different radii of the secondary metal centers, Cd(II) and Zn(II). In addition, the optimal synthesis condition, thermal stability, luminescent properties, and IR spectra of 1 and 2 were also investigated. In the experiment, the researchers used many compounds, for example, 4-(4H-1,2,4-Triazol-4-yl)benzoic acid (cas: 157069-48-2Reference of 157069-48-2).
4-(4H-1,2,4-Triazol-4-yl)benzoic acid (cas: 157069-48-2) belongs to triazole derivatives. Triazoles consist of a five-membered ring containing three nitrogen atoms and are biologically active, especially as antifungal, antimicrobial and enzyme inhibitors. Due to the structural characteristics, both 1,2,3- and 1,2,4-triazoles are able to accommodate a broad range of substituents (electrophiles and nucleophiles) around the core structures and pave the way for the construction of diverse novel bioactive molecules.Reference of 157069-48-2
Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics