In 2019,Journal of Molecular Structure included an article by Ben Moussa, Oumaima; Chebbi, Hammouda; Zid, Mohamed Faouzi. Application of 141-86-6. The article was titled 《Synthesis, crystal structure, vibrational study, optical properties and Hirshfeld surface analysis of bis(2,6-diaminopyridinium) tetrachloridocobaltate(II) monohydrate》. The information in the text is summarized as follows:
The title organic-inorganic hybrid compound, (C5H8N3)2 [CoCl4]·H2O, was synthesized by slow evaporation at room temperature Single-crystal x-ray diffraction anal. indicates that the asym. unit in this compound consists of one tetrahedral geometry [CoCl4]2-, two protonated organic cations (C5H8N3)+ and one water mol. of crystallization, all of which lie in general positions. In the crystal structure, the inorganic layers are built from tetrachloridocobaltate anions [CoCl4]2- and free water mols., linked together by O-H···Cl hydrogen bonds. The organic cations are intercalated between the inorganic layers via N-H···Cl hydrogen bonds and form chains through aromatic donor-acceptor interactions. Crystal cohesion is achieved through N-H···Cl, O-H···Cl, N-H···O and C-H···Cl hydrogen bonds between organic cations, inorganic anions and the water mols. building up a three-dimensional network. The functional groups present in the crystal were studied by FTIR spectroscopy. Investigation of the optical properties of the compound confirmed its semiconducting properties by revealing a direct optical band gap at 1.67 eV. Photoluminescence proprieties are also reported. The three-dimensional Hirshfeld surface (3-dimensional-HS) anal. and the two-dimensional fingerprint plots (2-dimensional-FP) reveal that the structure is dominated by H···Cl/Cl···H and H···H contacts. After reading the article, we found that the author used 2,6-Diaminopyridine(cas: 141-86-6Application of 141-86-6)
2,6-Diaminopyridine(cas: 141-86-6) belongs to pyridine. Pyridine and its simple derivatives are stable and relatively unreactive liquids, with strong penetrating odours that are unpleasant.Application of 141-86-6