摘要
通过一锅还原法成功制备了合金纳米团簇Au_(11-x)Cu_(x)(dppf)_(4)Cl_(2)(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Au_(11)(dppf)_(4)Cl_(2)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Cl配位的Au原子。因此,Au_(11-x)Cu_(x)(dppf)_(4)Cl_(2)可视为Cu对Au_(11)(dppf)_(4)Cl_(2)模板团簇的掺杂。Cu原子的引入并未改变模板团簇Au_(11)(dppf)_(4)Cl_(2)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。
An alloy nanocluster of Au_(11-x)Cu_(x)(dppf)_(4)Cl_(2)(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 Au_(11)(dppf)_(4)Cl_(2).The difference lies in that Cu atoms replace the inner shell Au atoms that are coordinated with the Cl atom.Therefore,Au_(11-x)Cu_(x)(dppf)_(4)Cl_(2) can be regarded as Cu-doped Au_(11)(dppf)_(4)Cl_(2).The introduction of Cu atoms exerts an influence on the electronic property of the template nanocluster with the structural framework maintained,further resulting in a red shift of the optical absorption.CCDC:2321758.
作者
周鹏
蔡潇
马清祥
刘旭
ZHOU Peng;CAI Xiao;MA Qingxiang;LIU Xu(School of Chemistry and Chemical Engineering,Ningxia University,Yinchuan 750021,China;School of Chemistry and Chemical Engineering,Nanjing University,Nanjing 210023,China)
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2024年第7期1254-1260,共7页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金项目(No.22101128)资助。
关键词
纳米团簇
金属
掺杂
结构
光吸收
nanocluster
metal
doping
structure
optical absorption
