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Synthesis, Characterizaiton, and Nonlinear Optical Study of Metalloporphyrins

机译:金属卟啉的合成,表征和非线性光学研究

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摘要

meso-Tetrakis{4-[2-trimethylsilyl) ethynyl] phenyl} porphyrin [TPP(4-CCTMS)_H2] and its complexes with Zn~(II), Ni~(II), Ga~(III), In~(III) and Sn~(IV) were synthesized and characterized. Their nonlinear optical transmission characteristics were determined using a 532 nm, 5 ns pulsed laser at a repetition rate of 20 Hz. Stronger nonlinear absorption was obtained with the zinc derivative, Zn~(II)-meso-tetrakis {4-[2-(trimethylsilyl) ethynyl] }porphyrin (TPP(4-CCTMS)_Zn), than with the standard analogues, Zn~(II)-meso-tetraphenylporphyrin (TPP_Zn), and Zn~(II)-meso-tetratolyl-porphyrin (TTP_Zn), indicting that the excited-state absorption can be influenced via fine molecular modification on the para-position of the meso-phenyl rings, without changing the ground-state absorption. The nonlinear optical response can be further enhanced via insertion of closed-shell metal ions. In particular, In~(III) Cl-meso-tetrakis {4-[2-(trimethylsilyl) ethynyl]} porphyrin (TPP(4-CCTMS)_InCl), exhibited a larger change in transmission with increasing energy than C_(60) and a comparable change to the state-of-the-art phthalocyanine dye, chloro(tetra (tert-butyl)phthalocyanato) indium (III) (Pc(t-Bu)_InCl).
机译:介孔四{{4- [2-三甲基甲硅烷基]乙炔基]苯基}卟啉[TPP(4-CCTMS)_H2]及其与Zn〜(II),Ni〜(II),Ga〜(III),In〜(合成并表征了III)和Sn〜(IV)。使用532 nm,5 ns脉冲激光以20 Hz的重复频率确定其非线性光学传输特性。锌衍生物Zn〜(II)-间-四[{4- [2-(三甲基甲硅烷基)乙炔基]}卟啉(TPP(4-CCTMS)_Zn)比标准类似物Zn〜具有更强的非线性吸收(II)-间-四苯基卟啉(TPP_Zn)和Zn〜(II)-间-四甲苯基卟啉(TTP_Zn),这表明可以通过对内消旋-对位的对位进行精细的分子修饰来影响激发态吸收。苯环,不改变基态吸收。通过插入闭壳金属离子可以进一步增强非线性光学响应。特别是,In〜(III)Cl-间-四[{4- [2-(三甲基甲硅烷基)乙炔基]}卟啉(TPP(4-CCTMS)_InCl)的透射率变化比C_(60)大。并对现有的酞菁染料,氯(四(叔丁基)酞菁铟)铟(III)(Pc(t-Bu)_InCl)进行了类似的更改。

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  • 来源
    《Advanced Functional Materials》 |2003年第11期|p. 863-867|共5页
  • 作者单位

    Defence Science and Technology Laboratory (DSTL) St. Andrews Rd, Great Malvern, Worcs, WR14 3PS (UK);

    QinetiQ, St Andrews Rd Great Malvern, Worcs, WR14 3PS (UK);

    DSO National Laboratories 20 Science Park Drive, Singapore 118230 (Singapore);

    DSO National Laboratories 20 Science Park Drive, Singapore 118230 (Singapore);

    DSO National Laboratories 20 Science Park Drive, Singapore 118230 (Singapore);

    DSO National Laboratories 20 Science Park Drive, Singapore 118230 (Singapore);

    DSO National Laboratories 20 Science Park Drive, Singapore 118230 (Singapore);

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 无线电电子学、电信技术;
  • 关键词

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