100894-05-1Relevant academic research and scientific papers
TAUTOMERIC TRANSFORMATIONS AND COLOR OF MONOAZO DYES. V. MOLECULAR STRUCTURE OF 1-(4-DIETHYLAMINOPHENYLAZO)-2-NAPHTHOL
Traven', V. F.,Shibanova, T. A.,Kostyuchenko, E. E.,Tsygankova, A. M.,Simonov, V. I.,Stepanov, B. I.
, p. 524 - 528 (2007/10/02)
The molecular structure of 1-(4-diethylaminophenylazo)-2-naphthol was studied in three phase states, i.e., in the crystalline state by x-ray diffraction, in the liquid state by electron absorption spectroscopy, and in the gas state by mass spectrometry.A distinguishing feature of 1-(4-diethylaminophenylazo)-2-naphthol compared with other dyes based on 2-naphthol is the clearly defined equalization of the bond lengths in the composition of the six-membered ring with the participation of a strong hydrogen bond between the hydroxyl of the 2-naphthol and the nitrogen atom of the azo group.The dye exists in a form intermediate between the boundary structures of the imino and quinone hydrazone tautomeric forms.
