In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Three zinc(II) and cadmium(II) complexes containing 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole and polynitrile ligands: synthesis, molecular and supramolecular structures, and photoluminescence properties, published in 2017-09-01, which mentions a compound: 1671-88-1, Name is 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine, Molecular C12H10N6, Reference of 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine.
Three photoluminescent complexes containing either ZnII or CdII have been synthesized and their structures determined Bis[4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole-κ2N1,N5]bis(dicyanamido-κN1)zinc(II), [Zn(C12H10N6)2(C2N3)2], (I), bis[4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole-κ2N1,N5]bis(dicyanamido-κN1)cadmium(II), [Cd(C12H10N6)2(C2N3)2], (II), and bis[4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole-κ2N1,N5]bis(tricyanomethanido-κN1)cadmium(II), [Cd(C12H10N6)2(C4N3)2], (III), all crystallize in the space group P [inline formula omitted] , with the metal centers lying on centers of inversion, but neither analogs (I) and (II) nor CdII complexes (II) and (III) are isomorphous. A combination of N-H···N and C-H···N hydrogen bonds and π-π stacking interactions generates three-dimensional framework structures in (I) and (II), and a sheet structure in (III). The photoluminescence spectra of (I)-(III) indicate that the energies of the π-π* transitions in the coordinated triazole ligand are modified by minor changes of the ligand geometry associated with coordination to the metal centers.
Different reactions of this compound(3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine)Reference of 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine require different conditions, so the reaction conditions are very important.
Reference:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem