Synthesis and spectral properties of some bis-substituted formazans.

  • Habibe Tezcan
  • Published 2008 in
    Spectrochimica acta. Part A, Molecular and…


Novel, 1,4-bis-[3,3'-phenyl-5,5'-(o-carboxyphenyl)-formaz-1-yl]-benzene-o-sulphonic acid and its derivatives contained OH group at the o-, m-, p-positions of the 3-phenyl ring were synthesized. The structures of the formazans were confirmed by elemental analyses, GC-mass, IR, (1)H NMR, UV-vis spectra. Their absorption properties were investigated. It was… (More)