Lanthanide-based coordination compounds based on 4-(4-carboxyphenyl)-1,2,4-triazole: synthesis, structures, Hirshfeld surface and luminescence properties was written by Liu, Qing-Ling;Yang, Li-Jing;Luo, Yang-Hui;Sun, Bai-Wang. And the article was included in New Journal of Chemistry in 2016.Synthetic Route of C9H7N3O2 This article mentions the following:
Four novel lanthanide compounds based on the 4-(4-carboxyphenyl)-1,2,4-triazole ligand (Hcpt), {[Pr2(cpt)4(H2O)10]·10H2O·2ClO4} (1), {[Ln(cpt)2(H2O)2(OH)]·4H2O}n (Ln = Er (2), Lu (3)), and {[Sm(cpt)2(CH3CH2OH)(H2O)3]·ClO4}n (4), were obtained under hydrothermal conditions and further characterized by elemental anal., single-crystal x-ray diffraction and TGA. Compound 1 exhibits a discrete dinuclear structure constructed by one cpt– ligand coordinated to two Pr3+ ions and another cpt– ligand coordinated to more than one Pr3+ ion. Compounds 2 and 3 are isomorphous and every cpt– ligand coordinates to two Ln3+ ions, resulting in a polymeric 1-dimensional chain structure. Different from the above compounds, the nitrogen atoms of triazole are also involved in the coordination of compound 4. One cpt– ligand coordinates to two Sm3+ ions and another cpt– ligand coordinates to more than one Sm3+ ion, meanwhile, the nitrogen atoms of triazole coordinate to the 3rd Sm3+ ion, resulting in a 2-dimensional polymeric network structure. The luminescence properties of compound 4 were characterized, and it exhibited characteristic Sm3+ emission in the yellow region. In the experiment, the researchers used many compounds, for example, 4-(4H-1,2,4-Triazol-4-yl)benzoic acid (cas: 157069-48-2Synthetic Route of C9H7N3O2).
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. The presence of the three nitrogen atoms in triazole structures afforded opportunities for a plethora of structural modification with the generation of novel therapeutically potential agents, which is different from other heterocyclic compounds.Synthetic Route of C9H7N3O2
Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics