^(13)C NMR and structural study of solid state naphthol-1 and naphthol-2 arylazo-derivatives

作     者：FEDOROV L.A. REBROV A.I. REBROV A.I. 

作者机构：Institute of Geochemistry and Analytical Chemistry Academy of Sciences of USSRInstitute of Geochemistry and Analytical ChemistryAcademy of Sciences of USSR 

出 版 物：《Chinese Journal of Chemistry》 (中国化学（英文版）)

年 卷 期：1991年第9卷第3期

页      面：245-250页

核心收录：

学科分类：07[理学] 0703[理学-化学] 

基　　金：The project was supported by the National Natural Science Foundation of China 

主　　题：C NMR and structural study of solid state naphthol-1 and naphthol-2 arylazo-derivatives NMR 

摘      要：Solid state ^(13)C NMR spectra of a series of naphthol-1 and naphthol-2-arylazo--deriva- tives were studied and compared with respective results in *** of carbon nuclei of naphthalene ring were *** forms of compounds were *** was shown that 4-(p-NO_2C_6H_4)-azonaphthol-1 and 1-(p-NO_2C_6H_4)-azonaphthol-2 in solid state existed ex- clusively in quinohydrazone *** other two compounds——1-(C_6F_5)-azonaphthol-2 and 2-(p- CH_3C_6H_4)-azonaphthol-1 in solid state were not found in the form of individual tautomeric mixtures but in respective tautomeric equilibrium ***,during transition from liquid to solid state, the tautomeric equilibrium was practically *** solid state it was found that rotation around aryl-N bond was hindered in the time scale of NMR spectroscopy.