高等学校化学学报 ›› 2014, Vol. 35 ›› Issue (10): 2214.doi: 10.7503/cjcu20140294

• 物理化学 • 上一篇    下一篇

硫代多联吡啶铂(Ⅱ)配合物的合成、性质及在光催化制氢中的应用

赵伟良1, 李琮1, 韩旭1, 黎挺挺2, 张桂菊2, 甘欣1, 李褔敏1, 傅文甫1,2()   

  1. 1. 云南师范大学化学化工学院, 昆明 650092
    2. 中国科学院理化技术研究所, 北京 100190
  • 收稿日期:2014-04-02 出版日期:2014-10-10 发布日期:2014-09-19
  • 作者简介:联系人简介: 傅文甫, 男, 博士, 教授, 博士生导师, 主要从事金属有机光化学、 光物理性质和光催化化学转换研究. E-mail: fuwf@mail.ipc.ac.cn
  • 基金资助:
    国家自然科学基金(批准号: 21267025, U1137606)资助

Syntheses, Properties and Photocatalytic Hydrogen Evolution Efficiency of Cyclometalated Pt(Ⅱ) Complexes Bearing S-methylphenyl Group

ZHAO Weiliang1, LI Cong1, HAN Xu1, LI Tingting2, ZHANG Guiju2, GAN Xin1, LI Fumin1, FU Wenfu1,2,*()   

  1. 1. College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650092, China
    2. Technical Institute of Physical and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2014-04-02 Online:2014-10-10 Published:2014-09-19
  • Contact: FU Wenfu E-mail:fuwf@mail.ipc.ac.cn
  • Supported by:
    Sypported by the National Natural Science Foundation of China(Nos.21267025, U1137606)

摘要:

合成了2个新配体4-(4-硫代乙酸)甲苯基-6-苯基-2,2'-联吡啶HC^N^N(PhCH2SCOCH3)(L3)和6-(4-硫代乙酸)甲苯基-2,2'-联吡啶 HC^N^N (CH2SCOCH3)(L5)及其发光的铂(Ⅱ)配合物ClPtC^N^N(PhCH2SCOCH3)(C3)和ClPtC^N^N(CH2SCOCH3)(C5). 通过1H NMR谱和质谱对它们的结构进行了表征, 采用X射线单晶衍射分析确定了C3的晶体结构. 利用紫外-可见吸收光谱、 发射光谱及激发态寿命测定研究了它们的光物理性质和电化学性质, 以及配合物作为光敏剂在光催化制氢中的应用. 通过系列配合物产氢效率的比较, 揭示了它们的产氢效率和激发态寿命的关系.

关键词: 巯基多联吡啶配体, 铂(Ⅱ)配合物, 光物理性质, 胶体铂, 光催化制氢

Abstract:

Two new ligands 4-(p-thioacetic-S-methylphenyl)-6-phenyl-2,2'-bipyridine[HC^N^NPh·(CH2SCOCH3), L3] and 6-(p-thioacetic-S-methylphenyl)-2,2'-bipyridine [HC^N^N(CH2SCOCH3), L5] as well as their platinum(Ⅱ) complexes ClPtC^N^N(PhCH2SCOCH3)(C3) and ClPtC^N^N·(CH2SCOCH3)(C5) were synthesized and characterized by 1H nuclear magnetic resonance(1H NMR), electrospray ionization mass spectra(ESI-MS) and X-ray diffraction(XRD) analysis. Photophysical and electrochemical properties of the complexes were studied based on the UV-Vis absorption and emission spectra, excited-state lifetime measurements. It was found that photogenerated hydrogen efficiencies of [ClPtC^N^N(CH3)(PhCH3)](C1), [ClPtC^N^N(PhCH3)](C2), C3, [ClPtC^N^N(CH3)](C4) and C5 are in accordance with their emission lifetimes, and are arranged in the order C4>C1>C5>C2>C3.

Key words: Thio-polypyridine ligand, Pt(Ⅱ) complex, Photophysical property, Colloidal Pt, Photocatalytic hydrogen production(Ed.: S, Z, M)

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