STRUCTURES OF TWO HYDRAZONE COMPOUNDS DERIVED FROM 4-METHYLBENZOHYDRAZIDE
Y. Lei1,2, G. Chen1,3, Q. Yang1, C. Fu4, J. Pan4, T. Li4
1Chongqing University, Chongqing, P. R. China
leiyan222@yahoo.cn
2Chongqing Three Gorges University
3Chongqing Environmental Protection Bureau
4Chongqing Three Gorges University, Chongqing, P. R. China
Keywords: synthesis, crystal structure, hydrazone compound, hydrogen bonding
Abstract
Two hydrazone compounds N'-(2,4-dichlorobenzylidene)-4-methylbenzohydrazide monohydrate (1) and 2-chloro-5-nitro- N'-(4-methylbenzylidene)benzohydrazide (2) derived from 4-methylbenzohydrazide with different benzaldehydes are synthesized and characterized by physicochemical methods and single crystal X-ray diffraction. Compound 1 crystallizes in the orthorhombic space group P212121 with unit cell parameters a = 4.714(2) Å, b = 13.093(3) Å, c = 24.754(3) Å, V = 1527.9(8) Å3, Z = 4, R 1 = 0.0812, and wR 2 = 0.1623. Compound 2 crystallizes in the monoclinic space group Cc with unit cell parameters a = 11.564(2) Å, b = 13.271(2) Å, c = 9.462(2) Å, β = 96.860(2)°, V = 1441.7(4) Å3, Z = 4, R1 = 0.0461, and wR2 = 0.0896. The crystals of the compounds are stabilized by intermolecular hydrogen bonds as well as π⋯π stacking interactions.
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