СИНТЕЗ, КРИСТАЛ?ЧНА СТРУКТУРА, СПЕКТРАЛЬН? ХАРАКТЕРИСТИКИ ТА АНАЛ?З ПОВЕРХН? Х?РШФЕЛЬДА КОМПЛЕКСУ ДИХЛОРО-Б?С(3,5-ДИМЕТИЛ-4-АМ?НО-1Н-П?РА3ОЛ) КОБАЛЬТУ(??)

摘要

The synthesis and characterization of mononuclear Co(II) complex based on 3,5-dimethyl-4-amino-1H-pyrazole are reported. IR and UV/Vis spectroscopy characterization of the complex are described. The synthesis, results of IR, NMR spectroscopy and elemental analysis of 3,5-dimethyl-4-amino-lH-pyrazole are also reported. X-ray analysis of Co(C5H9N3)2Cl2 complex reveals that the cobalt atom has a tetrahedral coordination environment formed by two nitrogen atoms belonging to the two 3,5-dimethyl-4-amino-lH-pyrazole ligands Col-N1 = 2.005(3) and Col-N5 = 2.006(3) ? and two chlorine atoms Col-Cl2 = 2.2400(11) and Co1-Cl1 2.2863(12) ?. In the crystal structure the molecules are linked through intermolecular (N-H...N, N-H ...Cl) and intramolecular non-classical (C-H...Cl) hydrogen bonds. Hirshfeld surface analysis of the intermolecular contacts reveals that the most important contributions for the crystal packing are from H...H (47.1) and H...Cl/Cl...H (28.5) contacts.