Creation of superatomic compounds

2016 Fiscal Year Final Research Report

• Project/Area Number: 26248003
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Physical chemistry
• Research Institution: The University of Tokyo
• Principal Investigator: Tsukuda Tatsuya 東京大学, 大学院理学系研究科(理学部), 教授 (90262104)
• Co-Investigator(Renkei-kenkyūsha): KOYASU Kiichirou 東京大学, 大学院理学系研究科, 准教授 (20508593) ; YAMAZOE Seiji 東京大学, 大学院理学系研究科, 助教 (40510243)
• Research Collaborator: TAKANO Shinjiro 東京大学, 大学院理学系研究科, 博士研究員 (40783957)
• Project Period (FY): 2014-06-27 – 2017-03-31
• Keywords: 金属クラスター

Outline of Final Research Achievements

This project aims to create new compounds based on “superatoms” composed of a given-number of metal atoms. The main achievements were listed below.
(1) Gas phase reactions of coinage metal atomic anion or aluminum clusters with organic molecules yielded new products. We revealed that the thiolate protected Au clusters smaller than Au147(SR)60 exhibited icosahedral structure motif and discrete electronic structures. A variety of Au superatoms, such as Au8Pd(6e), Au8(6e), Au11(8e), Au11(10e), have been synthesized and their electronic structures, bond stiffness and optical properties.(2) Superatomic molecules made of cuboctahedral Au13 or Au147 units have been synthesized and the origin of the intense photo absorption in the near IR and IR regions were studied.

Free Research Field

物理化学