Synthesis, characterization and crystal structures of hydrazone compounds derived from isonicotinohydrazide

Bulletin of The Chemical Society of Ethiopia

M. T. Zhu¹ 

关键词: Isonicotinohydrazone;    Crystal structure;    Hydrogen bonds;    X-ray diffraction;   

DOI  :  10.4314/bcse.v32i1.11

学科分类：化学（综合）

来源: Chemical Society of Ethiopia

【 摘 要 】

New isonicotinohydrazone compounds, N’ -(3-bromobenzylidene)isonicotinohydrazide ( 1 ) and N’ -(2,3-difluorobenzylidene)isonicotinohydrazide ( 2 ), were prepared and structurally characterized by elemental analysis, IR, UV and ¹H NMR spectra, and single crystal X-ray determination. Compound 1 crystallizes in the monoclinic space group P 2₁/ n with unit cell dimensions a = 7.600(2) Å, b = 11.365(2) Å, c = 14.412(2) Å, β = 101.748(2)º, V = 1218.7(4) ų, Z = 4, R ₁ = 0.0335, and wR ₂ = 0.0745. Compound 2 crystallizes in the triclinic space group P -1 with unit cell dimensions a = 7.6241(6) Å, b = 11.3937(9) Å, c = 14.335(1) Å, α = 79.664(1)º, β = 75.990(1)º, γ = 71.159(1)º, V = 1136.5(2) ų, Z = 4, R ₁ = 0.0345, and wR ₂ = 0.0940. Structures of both compounds are stabilized by hydrogen bonds and π···π interactions.

【 授权许可】

Unknown