A Sterically Biased Unsymmetrical Azobenzene Derivative: Synthesis, Molecular Structure, and 15N NMR Spectroscopic Analysis of (E)-1-(2,6-Diisopropylphenyl)-2-phenyldiazine

Abstract

The title compound, (E)-1-(2,6-diisopropylphenyl)-2-phenyldiazine (I), was synthesized and characterized using a combination of 1H, 13C, and 15N NMR spectroscopy, infrared and UV/Vis spectroscopy, X-ray crystallography, and GC mass spectrometry. The solid-state structure is also reported. The unsymmetric azobenzene crystallizes in the space group P21/c with unit cell parameters a = 8.001(7) A, b = 17.827(16) A, c = 11.129(10) A, β = 101.960(10)°, V = 1553(2) A3, Z = 4, D calc = 1.139 g/cm3. The synthesis of (E)-1-(2,6-diisopropylphenyl)-2-phenyldiazine (I) and its characterization using a combination of combination of 1H, 15N, and 13C NMR spectroscopy, infrared and UV/Vis spectroscopy, mass spectrometry, and X-ray crystallography is described in this report.