Design, Synthesis, Linear, and Nonlinear Optical Properties of Conjugated (Porphinato)zinc(II)-Based Donor−Acceptor Chromophores Featuring Nitrothiophenyl and Nitrooligothiophenyl Electron-Accepting Moieties
作者:Tian-Gao Zhang、Yuxia Zhao、Inge Asselberghs、André Persoons、Koen Clays、Michael J. Therien
DOI:10.1021/ja0402553
日期:2005.7.13
wavelengths (lambda(inc)) of 800 and 1300 nm; interestingly, measured beta(1300) values ranged from 650 --> 4350 x 10(-30) esu. The combined linear and nonlinear optical properties of these compounds challenge the classical concept of the nonlinearity/transparency tradeoff in charge-transfer chromophores: the magnitude of the molecular hyperpolarizability is observed to vary substantially despite approximately
使用涉及[5-溴-15-三异丙基甲硅烷基乙炔基-10,20-二芳基卟吩基]的金属催化交叉偶联反应合成了一系列广泛的基于共轭(卟啉)锌(II)的发色团,这些发色团具有硝基噻吩和硝基低聚噻吩电子接受部分锌 (II) 和不寻常的富含电子的铃木卟啉合成子,[5-(4-二甲氨基苯基乙炔基)-15-(4',4',5',5'-四甲基 [1',3',2'] dioxaborolan-2'-yl)-10,20-diarylporphinato]zinc(II),具有适当官能化的芳基和噻吩基前体。这些供体-受体发色团具有以 5-硝基封端的苯硫基、[2,2']联苯硫基和 [2,2';5',2'']三联苯单元;一系列结构的特点是这些受体部分直接附加到卟啉大环中间碳位置,而第二组利用中间的中间乙炔基部分来修饰卟啉与噻吩的结合。这些化合物的动态超极化率是通过在 800 和 1300 nm 的基本入射辐射波长 (λ(inc))