Symmetry breaking in ligand-protected gold clusters probed by nonlinear optics

Nick Van Steerteghem; Stijn Van Cleuvenbergen; Steven Deckers; Chanaka Kumara; Amala Dass; Hannu Häkkinen; Koen Clays; Thierry Verbiest; Stefan Knoppe

doi:10.1039/c6nr02251k

Symmetry breaking in ligand-protected gold clusters probed by nonlinear optics

Nick Van Steerteghem, Stijn Van Cleuvenbergen, Steven Deckers, Chanaka Kumara, Amala Dass, Hannu Häkkinen, Koen Clays, Thierry Verbiest, Stefan Knoppe

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

The first hyperpolarizabilities of [Au₂₅(SR)₁₈]^-1/0 and Au₃₈(SR)₂₄ clusters were determined by Hyper-Rayleigh Scattering. A strong dependence on the molecular symmetry was observed, and we explore two strategies to destroy the center of inversion in [Au₂₅(SR)₁₈]^-1/0, protection by chiral ligands and alloying of the cluster with silver. This may open new avenues to applications of Au : SR clusters in second-order nonlinear optics.

Original language	English
Pages (from-to)	12123-12127
Number of pages	5
Journal	Nanoscale
Volume	8
Issue number	24
DOIs	https://doi.org/10.1039/c6nr02251k
State	Published - Jun 28 2016
Externally published	Yes

Funding

We gratefully acknowledge financial support from KU Leuven, the German Academic Exchange Service (DAAD, S. K.), the Funds for Scientific Research Flanders (FWO, N. V. S., S. V. C., S. K.), the Hercules Foundation (T. V.), the Academy of Finland (H. H.), and the University of Mississippi (C. K., A. D.). All computations were carried out at CSC The IT Center for Science in Espoo (Finland).

Funders	Funder number
University of Mississippi
Deutscher Akademischer Austauschdienst
Academy of Finland
Fonds De La Recherche Scientifique - FNRS
Fonds Wetenschappelijk Onderzoek
KU Leuven
Herculesstichting

Access to Document

10.1039/c6nr02251k

Cite this

@article{6547ec7efbab4824a219772b264f24db,

title = "Symmetry breaking in ligand-protected gold clusters probed by nonlinear optics",

abstract = "The first hyperpolarizabilities of [Au25(SR)18]-1/0 and Au38(SR)24 clusters were determined by Hyper-Rayleigh Scattering. A strong dependence on the molecular symmetry was observed, and we explore two strategies to destroy the center of inversion in [Au25(SR)18]-1/0, protection by chiral ligands and alloying of the cluster with silver. This may open new avenues to applications of Au : SR clusters in second-order nonlinear optics.",

author = "{Van Steerteghem}, Nick and {Van Cleuvenbergen}, Stijn and Steven Deckers and Chanaka Kumara and Amala Dass and Hannu H{\"a}kkinen and Koen Clays and Thierry Verbiest and Stefan Knoppe",

note = "Publisher Copyright: {\textcopyright} 2016 The Royal Society of Chemistry.",

year = "2016",

month = jun,

day = "28",

doi = "10.1039/c6nr02251k",

language = "English",

volume = "8",

pages = "12123--12127",

journal = "Nanoscale",

issn = "2040-3364",

publisher = "Royal Society of Chemistry",

number = "24",

}

TY - JOUR

T1 - Symmetry breaking in ligand-protected gold clusters probed by nonlinear optics

AU - Van Steerteghem, Nick

AU - Van Cleuvenbergen, Stijn

AU - Deckers, Steven

AU - Kumara, Chanaka

AU - Dass, Amala

AU - Häkkinen, Hannu

AU - Clays, Koen

AU - Verbiest, Thierry

AU - Knoppe, Stefan

PY - 2016/6/28

Y1 - 2016/6/28

N2 - The first hyperpolarizabilities of [Au25(SR)18]-1/0 and Au38(SR)24 clusters were determined by Hyper-Rayleigh Scattering. A strong dependence on the molecular symmetry was observed, and we explore two strategies to destroy the center of inversion in [Au25(SR)18]-1/0, protection by chiral ligands and alloying of the cluster with silver. This may open new avenues to applications of Au : SR clusters in second-order nonlinear optics.

AB - The first hyperpolarizabilities of [Au25(SR)18]-1/0 and Au38(SR)24 clusters were determined by Hyper-Rayleigh Scattering. A strong dependence on the molecular symmetry was observed, and we explore two strategies to destroy the center of inversion in [Au25(SR)18]-1/0, protection by chiral ligands and alloying of the cluster with silver. This may open new avenues to applications of Au : SR clusters in second-order nonlinear optics.

UR - http://www.scopus.com/inward/record.url?scp=84975478206&partnerID=8YFLogxK

U2 - 10.1039/c6nr02251k

DO - 10.1039/c6nr02251k

M3 - Article

AN - SCOPUS:84975478206

SN - 2040-3364

VL - 8

SP - 12123

EP - 12127

JO - Nanoscale

JF - Nanoscale

IS - 24

ER -

Symmetry breaking in ligand-protected gold clusters probed by nonlinear optics

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this