Studies on the crystal structure and spectroscopic  properties of 4- [2-hydroxyphenyl)imino]-pentan-2-one

Abstract

By the reaction of o-Aminophend and Acetylacetone in absolute alcohol in the molar ratio of 1:1, 4-[(2-hydroxyphenyl)imino]-2- pentanone was synthesized and its single crystals were obtained. The crystal structure has been determined by X-ray diffraction method and its spectroscopic properties have been studied by UV-Vis, IR and ^1H NMR. The crystal is belong to orthorhombic system, space group P2~12~12~1 with unit cell parameters, a=0.8840(10)nm, b=1.05250(10)nm, c=1.12260(10)nm, V=1.0450(2)nm^3, Z=4, final R=0.0320, ωR=0.0669, S=0.949. Rather strong hydrogen bond exists in the crystal, the average distance of O(1)...O(2) is 0.2640nm. The analytical results of crystal structure and spectroscopic properties of the title compound show that two kinds of isomerization equilibrium between imine-enol mode and enamine-ketone mode exist in the title compound.

Key words: CHARACTERIZATION, CRYSTAL STRUCTURE, ACETOPREPANONE, IMINO GROUP, SCHIFF BASE

CLC Number:

O621

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Chen Zhenfeng;Li Shuting;Wang Xiujian;Hu Ruixiang;Liang Hong;Yu Kaibei. Studies on the crystal structure and spectroscopic properties of 4- [2-hydroxyphenyl)imino]-pentan-2-one[J]. Chin. J. Org. Chem., 1999, 19(5): 513-518.

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4-(2-羟基苯基)-亚胺基-戊-2-酮的晶体结构和谱学性质研究

Studies on the crystal structure and spectroscopic properties of 4- [2-hydroxyphenyl)imino]-pentan-2-one

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