Ag7Au6: A 13-Atom Alloy Quantum Cluster

被引：189

作者：

Udayabhaskararao, Thumu ^{[1
]}

Sun, Yan ^{[2
]}

Goswami, Nirmal ^{[3
]}

Pal, Samir K. ^{[3
]}

Balasubramanian, K. ^{[2
,4
,5
]}

Pradeep, Thalappil ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem, DST Unit Nanosci DST UNS, Madras 600036, Tamil Nadu, India

[2] Calif State Univ Hayward, Coll Sci, Hayward, CA 94542 USA

[3] SN Bose Natl Ctr Basic Sci, Dept Chem Biol & Macromol Sci, Kolkata 700098, India

[4] Lawrence Livermore Natl Lab, Chem & Mat Sci Directorate, Livermore, CA 94550 USA

[5] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2012年 / 51卷 / 09期

关键词：

alloy clusters; ESI-MS; luminescence; quantum clusters; silver; GOLD CLUSTERS; SILVER NANOCLUSTERS; AG-8; CLUSTERS; NANOPARTICLES; REACTIVITY; EXCHANGE; LIGANDS;

D O I：

10.1002/anie.201107696

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An alloy cluster containing a 13-atom core, with a composition Ag 7Au 6(H 2MSA) 10 (H 2MSA= mercaptosuccinic acid) was synthesized from silver clusters by a galvanic exchange reaction. The clusters were characterized by several spectroscopic and microscopic methods. The alloy cluster shows luminescence with a quantum yield of 3.5 × 10 -2 at room temperature. Theoretical calculations for Ag 7Au 6(SCH 3) 10 suggest a distorted icosahedral core. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：2155 / 2159

页数：5

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