摘要
应用密度泛函理论计算了1-二茂铁基-3-(4-溴苯基)丙烯酮(FBPAK)的最高占据轨道(HOMO)、最低空轨道(LUMO)能量和分子极化率;采用Z-扫描技术(532nm,180fs)测定了FBPAK的三阶非线性光学参数:非线性吸收系数β=-1.0×10-12 m/W,三阶非线性分子超极化率γ=1.4×10-32esu;结果表明,FBPAK容易发生分子内电荷转移,分子容易被极化,显示出超快三阶非线性光学响应;同时测定了FBPAK的紫外吸收光谱和DSC曲线.
The highest occupied molecular orbital energy levels(HOMO),the lowest unoccupied molecular orbital energy levels(LUMO)and molecular polarizability of 1-ferrocenyl-3-(4-bromophenyl)acrylic ketone(FBPAK)have been calculated via density functional theory(DFT).Its third-order nonlinear optical(NLO)properties were measured by Z-scan technique and the resulting relevant parameters were given as following with pulse width 180 fs,laser wavelength 532 nm:β=-1.0×10-12 m/W,γ=1.4×10-32 esu;the results show that FBPAK has an intramolecular charge transfer and exhibits ultrafast third-order nonlinear optical response.The corresponding UV absorption and DSC curves were also investigated.
引文
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