title: Oxidation-Induced Transformation of Eight-Electron Gold Nanoclusters: [Au23(SR)16]-to [Au28(SR)20]0.
abstract: Here we report an oxidation-induced transformation of [Au23(S-c-C6H11)16]-TOA+(S-c-C6H11: cyclohexanethiolate; TOA: tetraoctylammonium) to the [Au28(S-c-C6H11)20]0nanocluster by H2O2treatment under ambient conditions. This is the first example of oxidation-induced transformation of one stable size to another with atomic precision. The product was crystallized and analyzed by X-ray crystallography. Further insights into the transformation process were obtained by monitoring the process with optical spectroscopy and also by electrochemical analysis. This work adds a new dimension to the recently established transformation chemistry of nanoclusters that involves size and structure transformations.
authors.affiliation: Department of Chemistry, Carnegie Mellon University , Pittsburgh, Pennsylvania 15213, United States.
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Higaki
authors.affiliation: Department of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15213, United States.
authors.forename: Chong
authors.identifier: http://orcid.org/0000-0002-9780-9062
authors.initials: C
authors.lastname: Liu
authors.affiliation: Department of Chemistry, Carnegie Mellon University , Pittsburgh, Pennsylvania 15213, United States.
authors.forename: Yuxiang
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Department of Chemistry, Carnegie Mellon University , Pittsburgh, Pennsylvania 15213, United States.
authors.forename: Shuo
authors.initials: S
authors.lastname: Zhao
authors.affiliation: Department of Chemistry, Carnegie Mellon University , Pittsburgh, Pennsylvania 15213, United States.
authors.forename: Chenjie
authors.identifier: http://orcid.org/0000-0002-2904-5590
authors.initials: C
authors.lastname: Zeng
authors.affiliation: Department of Chemistry, Carnegie Mellon University , Pittsburgh, Pennsylvania 15213, United States.|School of Chemistry, Northeast Normal University , Changchun, Jilin 130024, China.
authors.forename: Renxi
authors.initials: R
authors.lastname: Jin
authors.affiliation: Department of Chemistry, Carnegie Mellon University , Pittsburgh, Pennsylvania 15213, United States.|Department of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University , Hefei, Anhui 230601, China.
authors.forename: Shuxin
authors.identifier: http://orcid.org/0000-0003-0403-3953
authors.initials: S
authors.lastname: Wang
authors.affiliation: Department of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15213, United States.
authors.forename: Nathaniel L
authors.initials: NL
authors.lastname: Rosi
authors.affiliation: Department of Chemistry, Carnegie Mellon University , Pittsburgh, Pennsylvania 15213, United States.
authors.forename: Rongchao
authors.identifier: http://orcid.org/0000-0002-2525-8345
authors.initials: R
authors.lastname: Jin