Cu掺杂对Au11(dppf)4Cl2纳米团簇结构和光学性质的影响
Effects of Cu doping on the structure and optical properties of Au11(dppf)4Cl2 nanocluster
周鹏 1蔡潇 2马清祥 1刘旭2
作者信息
- 1. 宁夏大学化学化工学院,银川 750021
- 2. 南京大学化学化工学院,南京 210023
- 折叠
摘要
通过一锅还原法成功制备了合金纳米团簇Au11-xCux(dppf)4Cl2(x=1、2;dppf=1,1'-双(二苯基膦)二茂铁).晶体结构解析表明,合金团簇具有与Au11(dppf)4Cl2类似的几何结构,如含有缺陷二十面体金属内核,不同之处在于Cu原子取代了与C1配位的Au原子.因此,Au11-xCux(dppf)4Cl2可视为Cu对Au11(dppf)4Cl2模板团簇的掺杂.Cu原子的引入并未改变模板团簇Au11(dppf)4Cl2的框架结构,但有效调控了电子结构,进而使其光吸收发生红移.
Abstract
An alloy nanocluster of Au11-xCux(dppf)4Cl2(x=1,2;dppf=1,1'-bis(diphenylphosphine)ferrocene)was synthesized via a one-pot reduction method.X-ray crystallography shows that this nanocluster has a defective icosahedral core,which is analog to that of Au11(dppf)4Cl2.The difference lies in that Cu atoms replace the inner shell Au atoms that are coordinated with the Cl atom.Therefore,Au11-xCux(dppf)4Cl2 can be regarded as Cu-doped Au11(dppf)4Cl2.The introduction of Cu atoms exerts an influence on the electronic property of the template nanoclus-ter with the structural framework maintained,further resulting in a red shift of the optical absorption.CCDC:2321758.
关键词
纳米团簇/金属/掺杂/结构/光吸收Key words
nanocluster/metal/doping/structure/optical absorption引用本文复制引用
出版年
2024
NETL
NSTL
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