Push-pull azulene-based chromophores with nonlinear optical properties
摘要:
A new chromophore 6-methoxy-1-[2-(4-nitrophenyl)ethenyl]-azulene was synthesized and tested for the Second Harmonic Generation (SHG) in solid state by the Kurtz powder technique. This compound was sis times more efficient (58 times than the urea standard) than the unsubstituted compound 1-[2-(4-nitrophenyl)ethenyl]-azulene (10 times than the urea). (C) 1998 Elsevier Science Ltd. All rights reserved.