3010-46-6Relevant academic research and scientific papers
Studies on UV/Vis Absorption Spectra of Azo Dyes. XVIII. Substituent Effects on the Absorption Maxima of the n-->?* and ?-->?* Bands of 4-N,N-Diethylaminoazobenzenes
Haessner, Carmen,Mustroph, H.
, p. 493 - 498 (2007/10/02)
The spectra of 27 substituted 4-N,N-diethylaminoazobenzenes are determined.The band system can be separated by deconvolution into two Gaussian curves.The results so obtained show that the effects of substituents on n-->?* and ?-->?* transitions are similar and that electron withdrawing substituents in the phenylazo residue cause a bathochromic shift of both the n-->?* and the ?-->?* bands.
