利用Nafion薄膜-水溶液界面提高铂络合物和紫精间的光致电荷分离态的寿命

doi:10.7517/j.issn.1674-0475.2000.02.97

影像科学与光化学 ›› 2000, Vol. 18 ›› Issue (2): 97-103.DOI: 10.7517/j.issn.1674-0475.2000.02.97

• 研究快讯 • 下一篇

利用Nafion薄膜-水溶液界面提高铂络合物和紫精间的光致电荷分离态的寿命

仪修禹¹, 吴骊珠², 佟振合¹

1. 中国科学院感光化学研究所, 北京100101;
2. 中国科学院分子科学中心, 北京100101

收稿日期:2000-02-25 修回日期:2000-03-06 出版日期:2000-05-20 发布日期:2000-05-20
通讯作者: TONGZhen-he
基金资助:
国家自然科学基金资助项目(29832040);中科院基础局资助项目

ENHANCEMENT OF PHOTOINDUCED CHARGE SEPARATION IN CYCLOMETALLATED PLATINUM (Ⅱ) COMPLEX-VIOLOGEN SYSTEM VIA NAFION MEMBRANE-SOLUTION INTERFACE

YI Xiu-yu¹, WU Li-zhu², TONG Zhen-he(TUNG Chen-Ho)¹

1. Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P. R. China;
2. Center for Molecular Science, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080, P. R. China

Received:2000-02-25 Revised:2000-03-06 Online:2000-05-20 Published:2000-05-20

摘要/Abstract

摘要： 研究了铂络合物PtL₁ L₂²⁺(L₁=4 甲氧基苯基 6 苯基 2,2’ 联吡啶,L2 =吡啶)和磺酸丙基紫精(PVS⁰)在Nafion膜中进行的光致电子转移和电荷分离.Nafion膜被水溶胀后形成类似反胶束的结构,其空腔表面带有负电荷.将带有正电荷的电子给体PtL₁ L₂²⁺吸附到膜中,电中性的受体PVS⁰ 溶于水中,采用带有正电荷的N,N’ 四亚甲基 2,2’ 联吡啶(DQ²⁺)作为电荷载体,并且也被吸附到膜内.激发PtL₁ L₂²⁺导致与DQ²⁺发生电子转移,生成的DQ^+· 迁移到Nafion膜水溶液界面并将电子传给受体PVS⁰,生成的PVS^+·被Nafion膜表面负电荷排斥从而阻止电荷回传.电子转移产物PtL₁ L₂³⁺位于膜中,PVS^+·位于溶液中,两者隔离,电荷分离状态的寿命可长达几天.

关键词: Nafion膜, 铂络合物, 紫精, 光致电子转移, 长寿命电荷分离

Abstract: The photoinduced electron transfer from the excited state of cyclometallated platinum (Ⅱ) complex PtL₁L₂²⁺ (L₁=4 methoxyphenyl 6 phenyl 2,2’ bibyridine,L₂=pyridine) incorporated into Nafion membranes to propylviologen sulfonate (PVS⁰) in the surrounding solution has been examined by photochemical measurements.N,N’ tetramethylene 2,2’ bipyridinium (DQ²⁺) entrapped in the Nafion membranes is used as an electron relay.Luminescence quenching studies indicate that the quenching reaction of PtL₁L₂²⁺ with DQ²⁺ is both of dynamic and static nature.PtL₁L₂³⁺ generated from the luminescence quenching remains in the Nafion matrix,while DQ^+· migrates by an electron hopping mechanism to the Nafion water interface,where transfers an electron to PVS⁰ to produce PVS^-·.The negative charged PVS^-· is repelled into the bulk solution by the anionic Nafion surface.The isolation of the photoinduced oxidized species PtL₁L₂³⁺ in Nafion from the ultimate reduced species PVS^-· in solution prevents them from undergoing back electron transfer,and a long lived (up to a few days) charge separation state is achieved.

Key words: Nafion, cyclometallated platinum (Ⅱ) complex, viologen, photoinduced electron transfer, long lived charge separation

中图分类号:

O644

仪修禹, 吴骊珠, 佟振合. 利用Nafion薄膜-水溶液界面提高铂络合物和紫精间的光致电荷分离态的寿命[J]. 影像科学与光化学, 2000, 18(2): 97-103.

YI Xiu-yu, WU Li-zhu, TONG Zhen-he(TUNG Chen-Ho). ENHANCEMENT OF PHOTOINDUCED CHARGE SEPARATION IN CYCLOMETALLATED PLATINUM (Ⅱ) COMPLEX-VIOLOGEN SYSTEM VIA NAFION MEMBRANE-SOLUTION INTERFACE[J]. Imaging Science and Photochemistry, 2000, 18(2): 97-103.

参考文献

[1] (a)Fox M A, Chanon M. Photoinduced Electron Transfer [M]. Elsevier: Amsterdam, 1988
(b)Pelizzetti E, Schiavello M. Photochemical Conversion and Storage of Solar Energy [M]. Kluwer Academic: Dordrecht, 1991
[2] (a)Moore T A, Gust D, Mathis P, et al. Photodriven charge separation in a carotenoporphyrin-quinone triad [J]. Nature(London), 1984,307:630
(b)Seta P, Bienvenue E, Moore A L, et al. Photodriven transmembrane charge separation and electron transfer by a carotenoporphyrin-quinone triad [J]. Nature (London), 1985,316:653
(c)Gust D, Moore T A. Mimicking photosynthesis [J]. Science, 1989,244:35
[3] (a)Willner I, Yang J M, Laane C, et al. The function of SiO₂ colloids in a photoinduced redox reactions. interfacial effects on the quenching, charge separation, and quantum yields [J]. J. Phys. Chem., 1981,85:3277
(b)Degani Y, Willner I. Photoinduced hydrogen evolution by a zwitterionic diquat electron acceptor. The functions of SiO₂ colloid in controlling the electron-transfer process [J]. J.Am.Chem.Soc., 1983,105:6228
[4] (a)Slama-Schwok A, Avnir D, Ottolenghi M. Photoinduced electron transfer mediated by a shuttling charge carrier between ruthenium and iridium trisbipyridyl complexes trapped in Sol-Gel glasses [J]. J. Am. Chem. Soc., 1991,113:3984
(b)Slama-Schwok A, Ottolenghi M, Avnir D. Long-lived photoinduced charge separation in a redox system trapped in a Sol-Gel glass [J]. Nature, 1992,355:240
[5] Krueger J S, Mayer J E, Mallouk T E. Long-lived light-induced charge separation in a zeolite L-based molecular triad [J]. J. Am. Chem. Soc., 1988,110:8232
[6] (a)Dutta P K, Turbeville W. Intrazeolitic photoinduced redox reactions between Ru(bpy)₃²⁺ and methylviologen [J]. J. Phys. Chem., 1992,96:9410
(b)Borja M, Dutta P K. Storage of light energy by photoelectron transfer across a sensitized zeolite-solution interface [J]. Nature, 1993,362:43
[7] Sykora M, Kincaid J R. Photochemical energy storage in a spatially organized zeolite-based photoredox system [J]. Nature, 1997,387:162
[8] (a)Komoroski R A, Mauritz K A. A sodium-23 nuclear magnetic resonance study of ionic mobility and contact ion pairing in a perfluorosulfonate ionomer [J]. J. Am. Chem. Soc., 1978,100:7487
(b)Lee P C, meisel D. Luminescence quenching in the cluster network of perfluorosulfonate membrane [J]. J. Am. Chem. Soc., 1980,102:5477
(c)Sondheimer S J, Bunce N J, Fyfe C A. Structure and chemistry of nafion-H: a fluorinated sulfonic acid polymer [J]. J. Macromol. Sci., Rev. Macromol. Chem. Phys., 1986,c26:353
[9] Gierke T D, Munn G E, Wilson F C. The morphology in nafion^* perfluorinated membrane products, as determined by wide- and small-angle X-ray studies [J]. J. Polym. Sci., Polym. Phys. Ed., 1981,19:1687
[10] Carraway E R, Demas J N, DeGraff B A, et al. Luminescence quenching mechanism for microheterogeneous systems [J]. Anal. Chem., 1991,63:332

[1]	宋伟伟, 王跃川. 紫精-普鲁士蓝凝胶电致变色器件的制备[J]. 影像科学与光化学, 2018, 36(1): 51-56.
[2]	李旭兵, 王晓军, 王格侠, 邢令宝, 张丽萍, 佟振合, 吴骊珠. 环双(百草枯对苯撑)-双2-萘甲酸三缩四乙二醇酯二元超分子给受体体系光诱导电子转移研究[J]. 影像科学与光化学, 2010, 28(4): 241-246.
[3]	李志斌, 李玲, 张振林, 王跃川. 含氯化铜的紫精/聚合物薄膜制备及光致变色性能研究[J]. 影像科学与光化学, 2010, 28(1): 29-36.
[4]	吴骊珠, 张丽萍, 李红茹, 仪修禹, 宋恺, 徐明苑振宇, 官景渠, 应允明, 王红伟, 佟振合. 微反应器控制的化学反应的选择性[J]. 影像科学与光化学, 2000, 18(4): 348-356.
[5]	甘家安, 陈孔常, 田禾. 荧光分子开关的研究进展[J]. 影像科学与光化学, 2000, 18(3): 254-262.
[6]	夏光明, 贺学忠, 周亚琳, 张曼华, 沈涛. 蒽醌、甲基紫精、N,N-二乙基苯胺与金丝桃蒽酮素光致电子转移的研究[J]. 影像科学与光化学, 1998, 16(1): 15-21.
[7]	刘志斌, 邓湘君. 芘四硫酸四钠盐/甲基紫精复合物光物理性质的研究[J]. 影像科学与光化学, 1997, 15(3): 210-216.
[8]	李顺来, 董晓阳, 许慧君. 一类以双酚A为连接链的电子给体—受体体系的合成及分子内电子转移反应研究[J]. 影像科学与光化学, 1995, 13(3): 207-213.
[9]	杨建军, 冯良波, 张治军, 金振声. 在纳米CdS颗粒表面MV²⁺光还原的ESR研究[J]. 影像科学与光化学, 1995, 13(3): 227-233.
[10]	周庆复, 刘纪祥, 许慧君, 徐京梅, 贾建光, 肖绪瑞. 锌酞菁-紫精-二茂铁三元化合物分子内光致电子转移及光电转换性能的研究[J]. 影像科学与光化学, 1993, 11(4): 349-355.
[11]	李连发, 周瑞龄. 脂质体体系中甲基紫精与抗坏血酸的光敏氧化还原[J]. 影像科学与光化学, 1990, 8(1): 30-35.
[12]	朱延宁, 肖绪瑞, 李学萍, 王青柏. 不同紫精在光解水释氢反应中的影响[J]. 影像科学与光化学, 1987, 5(2): 17-21.

利用Nafion薄膜-水溶液界面提高铂络合物和紫精间的光致电荷分离态的寿命

ENHANCEMENT OF PHOTOINDUCED CHARGE SEPARATION IN CYCLOMETALLATED PLATINUM (Ⅱ) COMPLEX-VIOLOGEN SYSTEM VIA NAFION MEMBRANE-SOLUTION INTERFACE

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 12

编辑推荐

Metrics

本文评价