compounds. The γ of the metallocene acetylide complexes are significantly larger than the sum of the free organic acetylene and the metallocene halide compounds. Cp 2 Zr(Cl)CHCH-1,4-phenyl-CHCH(Cl)ZrCp 2 has the largest γ (154×10 −36 esu) of any of the group 4 metallocene compounds studied. The origin of this optical nonlinearity is most likely due to a conjugated π system, which involves the Cp-metal
摘要采用三次谐波发生技术,以1908 nm的基波激光频率测量了Ti,Zr和Hf茂
金属卤化物,
乙炔化物和烯基
锆茂茂化合物的三阶非线性光学(NLO)系数(γ)。茂
金属卤化物的γ小于5×10 -36 esu。茂
金属双苯基
乙炔化物在茂
金属
乙炔化物化合物中具有最大的γ(92×10 -36 esu)。茂
金属
乙炔配合物的γ明显大于游离有机
乙炔和茂
金属卤化物的总和。在研究的第4组茂
金属化合物中,Cp 2 Zr(Cl)CH = CH-1,4-苯基-CH = CH(Cl)ZrCp 2具有最大的γ(154×10 -36 esu)。这种光学非线性的起源很可能是由于共轭π系统引起的,