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Abstract The crystal and molecular structures of 4,4′-dimethyl-3,3′,5,5′-tetranitro-2,2′-hydrazobipyridine have been determined by X-ray diffraction studies and DFT quantum chemical calculations. The 6-311G (2d, 2p) basis set with the B3LYP functional… Click to show full abstract
Abstract The crystal and molecular structures of 4,4′-dimethyl-3,3′,5,5′-tetranitro-2,2′-hydrazobipyridine have been determined by X-ray diffraction studies and DFT quantum chemical calculations. The 6-311G (2d, 2p) basis set with the B3LYP functional has been used to discuss the optimised structure and vibrational dynamics of the studied compound. It crystallizes in the monoclinic C 2/ c space group with one-half molecule in the asymmetric unit. The intramolecular N H⋯O hydrogen bonds and weak intermolecular C H⋯O contacts play an important role in stabilization of the structure. Structural and vibrational properties of the studied compound have been compared to those of other similar compounds. The conformation of the hydrazo bridge has been analysed in relation to the intramolecular N H⋯O interactions inside the monomeric form. Low temperature behavior of the studied compound has been discussed.
Journal Title: Journal of Molecular Structure
Year Published: 2018
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