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Synthesis, Spectral Characterization and Crystal Structure of 2-((3-Aminophenyl)(phenyl)methylene) hydrazinecarboxamide

Author(s): Yi-Chen Chan | Abdussalam Salhin Mohamed Ali | Melati Khairuddean | Ching-Kheng Quah

Journal: Journal of Crystallization Process and Technology
ISSN 2161-7678

Volume: 03;
Issue: 02;
Start page: 64;
Date: 2013;
Original page

Keywords: Semicarbazone | Aminobenzophenone | Benzophenone | Hydrazone

A benzophenone substituted semicarbazone, 2-((3-aminophenyl)(phenyl)methylene)hydrazinecarboxamide (APHC) had been synthesized in good yield by the condensation of 3-aminobenzophenone and semicarbazide hydrochloride. The title compound was elucidated by elemental analysis (CHN), FTIR, 1H and 13C-NMR, 1H-1H COSY, TGA and single crystal X-ray diffraction. The compound crystallized in the orthorhombic crystal system with space group of Pccn, Z = 32, V = 10375.1 (2) ?3, and lattice constants a = 12.3855 (1) ?, b = 34.5746 (5) ?, c = 24.2283 (3) ? and γ = β = α = 90°. The molecular view shows that APHC contains four molecules of each species in the asymmetric unit, with similar geometries. However, there is no intramolecular hydrogen bond found in the crystal structure of the synthesized compound. X-ray diffraction also reveals that the molecule of the semicarbazone exists as a Z isomer with respect to the C=N.
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