The synthesis and spectral properties determination of 1,3-substituted phenyl-5-phenylformazans

Tezcan H., Uzluk E.

DYES AND PIGMENTS, vol.75, no.3, pp.633-640, 2007 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 75 Issue: 3
  • Publication Date: 2007
  • Doi Number: 10.1016/j.dyepig.2006.07.011
  • Journal Name: DYES AND PIGMENTS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.633-640
  • Gazi University Affiliated: No


In this study, novel 1,3-substituted phenyl-5-phenylformazans were synthesized with -NO2, -Cl, -Br, -CH3, -OCH3 groups in the o-, m-, and p-position of the 1-phenyl ring and -NO2, -OCH3 groups in the m- and p-position of the 3-phenyl ring. Their structures were elucidated by elemental analysis and GC-mass and their spectral behaviors were investigated with H-1 NMR, C-13 NMR, IR, UV-vis spectra. The absorption characteristics of the compounds were examined by UV-vis spectra. There was a shift in lambda(max) whose amount was dependent upon the type and position of the substituent on the ring. A linear correlation was obtained between this substituent effect and Hammett substituent coefficients. (c) 2006 Elsevier Ltd. All rights reserved.