The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine( cas:1671-88-1 ) is researched.Application In Synthesis of 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine.Vahovska, Lucia; Bukrynov, Oleksandr; Potocnak, Ivan; Cizmar, Erik; Kliuikov, Andrii; Vitushkina, Svitlana; Dusek, Michal; Herchel, Radovan published the article 《New Cobalt(II) Field-Induced Single-Molecule Magnet and the First Example of a Cobalt(III) Complex with Tridentate Binding of a Deprotonated 4-Amino-3,5-bis(pyridin-2-yl)-1,2,4-Triazole Ligand》 about this compound( cas:1671-88-1 ) in European Journal of Inorganic Chemistry. Keywords: crystal structure cobalt pyridinyltriazole azido mononuclear dinuclear; cobalt pyridinyltriazole azido mononuclear preparation magnetic relaxation SMM. Let’s learn more about this compound (cas:1671-88-1).
From Co(NO3)2·6H2O – NaN3 – abpt reaction system, mononuclear [Co(abpt)2(N3)2] (abpt = 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole) (1) and dinuclear [Co2(abpt)(μ-abpt-H)2(N3)4]·1.12H2O (2) were obtained. The presence of neutral abpt, as well as azido ligands was proved by IR spectroscopy. X-ray crystallog. shows that 1 is a mol. CoII complex with two azido ligands coordinated in trans-positions, while 2 is a dinuclear CoIII complex bridged by two abpt-H ligands. π-π Stacking interactions between pyridyl rings of abpt and N-H···N and C-H···N H bonds in 1 and 2 stabilize their structures by creating a 3-dimensional supramol. network. The anal. of the magnetic properties of 1 revealed neg. zero-field splitting parameter D = -24.1 cm-1 supported also by CASSCF/NEVPT2 and CASSCF/CASPT2 theor. calculations The X-band ESR also gives an evidence for a strong rhombic character of the anisotropy. The study of the a.c. susceptibility measurements identified 1 as a field-induced single-mol. magnet, in which direct, Raman and Orbach relaxation processes are present.
The article 《New Cobalt(II) Field-Induced Single-Molecule Magnet and the First Example of a Cobalt(III) Complex with Tridentate Binding of a Deprotonated 4-Amino-3,5-bis(pyridin-2-yl)-1,2,4-Triazole Ligand》 also mentions many details about this compound(1671-88-1)Application In Synthesis of 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine, you can pay attention to it, because details determine success or failure
Reference:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem