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| 采用一阶导数光谱研究[PtCl6]2-的可控水解 | |
| 引用本文： | 于迎涛,王晶,杨海军,徐柏庆.采用一阶导数光谱研究[PtCl6]2-的可控水解[J].高等学校化学学报,2006,27(12):2405-2407. |
| 作者姓名： | 于迎涛 王晶 杨海军 徐柏庆 |
| 作者单位： | 1. 大连海事大学环境科学与工程学院,大连,116026;清华大学化学系,北京,100084 2. 大连海事大学环境科学与工程学院,大连,116026 3. 清华大学化学系,北京,100084 |
| 基金项目： | 国家重点基础研究发展计划(973计划);国家实验室BSRF项目;大连海事大学校科研和教改项目 |
| 摘 要： | 通过紫外吸收光谱、导数光谱以及溶液电导率的变化研究了紫色光对PtCl6]2-水解过程的影响规律. |
| 关 键 词： | 水解 紫外光谱 导数光谱 电导 纳米粒子形状 |
| 文章编号： | 0251-0790（2006）12-2405-03 |
| 收稿时间： | 01 10 2006 12:00AM |
| 修稿时间： | 2006-01-10 |
Controlled-hydrolysis of [PtCl6]2- Studied with 1st Derivative Spectra |
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| YU Ying-Tao,WANG Jing,YANG Hai-Jun,XU Bo-Qing.Controlled-hydrolysis of [PtCl6]2- Studied with 1st Derivative Spectra[J].Chemical Research In Chinese Universities,2006,27(12):2405-2407. | |
| Authors: | YU Ying-Tao WANG Jing YANG Hai-Jun XU Bo-Qing |
| Institution: | 1.College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China; 2. Department of Chemistry, Tsinghua University, Beijing 100084, China |
| Abstract: | The aquochloro ligand exchange between PtCl6]2- and H2O is an important factor to regulate the facet growth in shape-controlled synthesis of Pt nanocrystals because the electric charge and coordination structure of Pt precursor strongly influences its adsorption and reduction on Pt nanocrystal surface. In this contribution, the exposure to violet light(415 nm) is found to efficiently weaken the characteristic LMCT absorption and increase the conductance of 1.5×10-4 mol/L K2PtCl6 aqueous solution that is fairly stable in dark aging. And, the variations of both the LMCT adsorption and the conductance are closely related with the exposure time. The 1st derivative spectra of ultraviolet absorption shows that the characteristic LMCT absorption shifts toward shorter wavelength along with the exposure which is mainly attributed to the aquochloro ligand exchange of PtCl6]2-. |
| Keywords: | Hydrolysis UV spectrum Derivative spectrum Conductance Nanoparticle shape |
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