Atomic structure of Au329(SR)84 faradaurate plasmonic nanomolecules

Chanaka Kumara; Xiaobing Zuo; Jan Ilavsky; David Cullen; Amala Dass

doi:10.1021/jp512910a

Atomic structure of Au₃₂₉(SR)₈₄ faradaurate plasmonic nanomolecules

Chanaka Kumara, Xiaobing Zuo, Jan Ilavsky, David Cullen, Amala Dass

Materials MicroAnalysis

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

20 Scopus citations

Abstract

To design novel nanomaterials, it is important to precisely control the composition, determine the atomic structure, and manipulate the structure to tune the materials property. Here we present a comprehensive characterization of the material whose composition is Au₃₂₉(SR)₈₄ precisely, therefore referred to as a nanomolecule. The size homogeneity was shown by electron microscopy, solution X-ray scattering, and mass spectrometry. We proposed its atomic structure to contain the Au₂₆₀ core using experiments and modeling of a total-scattering-based atomic-pair distribution functional analysis. HAADF-STEM images shows fcc-like 2.0 ± 0.1 nm diameter nanomolecules.

Original language	English
Pages (from-to)	11260-11266
Number of pages	7
Journal	Journal of Physical Chemistry C
Volume	119
Issue number	20
DOIs	https://doi.org/10.1021/jp512910a
State	Published - May 21 2015

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abstract = "To design novel nanomaterials, it is important to precisely control the composition, determine the atomic structure, and manipulate the structure to tune the materials property. Here we present a comprehensive characterization of the material whose composition is Au329(SR)84 precisely, therefore referred to as a nanomolecule. The size homogeneity was shown by electron microscopy, solution X-ray scattering, and mass spectrometry. We proposed its atomic structure to contain the Au260 core using experiments and modeling of a total-scattering-based atomic-pair distribution functional analysis. HAADF-STEM images shows fcc-like 2.0 ± 0.1 nm diameter nanomolecules.",

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AU - Cullen, David

AU - Dass, Amala

PY - 2015/5/21

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AB - To design novel nanomaterials, it is important to precisely control the composition, determine the atomic structure, and manipulate the structure to tune the materials property. Here we present a comprehensive characterization of the material whose composition is Au329(SR)84 precisely, therefore referred to as a nanomolecule. The size homogeneity was shown by electron microscopy, solution X-ray scattering, and mass spectrometry. We proposed its atomic structure to contain the Au260 core using experiments and modeling of a total-scattering-based atomic-pair distribution functional analysis. HAADF-STEM images shows fcc-like 2.0 ± 0.1 nm diameter nanomolecules.

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Atomic structure of Au₃₂₉(SR)₈₄ faradaurate plasmonic nanomolecules

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