| abstract |
(57) [Summary] [Object] To provide a hydrazone compound useful as an organic nonlinear optical material exhibiting excellent nonlinearity and capable of efficiently generating a harmonic wave and a highly sensitive color chelating reagent. [Structure] The following general formula (1) (in the formula, Ar 1 is a substituted or unsubstituted 2-imidazolyl group, 4-imidazolyl group, 3-pyrazolyl group, 2-thiazolyl group, R 1 is a nitro group, a cyano group or Trifluoromethyl group, R 2 is a substituted or unsubstituted alkyl group, nitro group, cyano group, A trifluoromethyl group or a halogen atom, R 3 is a hydrogen atom, and n is an integer of 0 to 3. ) Is a hydrazone compound represented by. [Chemical 1] |