Chirality in bare and passivated gold nanoclusters

I. L. Garzón; J. A. Reyes-Nava; J. I. Rodríguez-Hernández; I. Sigal; M. R. Beltrán; K. Michaelian

doi:10.1103/PhysRevB.66.073403

Chirality in bare and passivated gold nanoclusters

I. L. Garzón, J. A. Reyes-Nava, J. I. Rodríguez-Hernández, I. Sigal, M. R. Beltrán, K. Michaelian

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171 Scopus citations

Abstract

Chiral structures have been found as the lowest-energy isomers of bare (Au₂₈ and Au₅₅) and thiol-passivated [Au₂₈(SCH₃)₁₆ and Au₃₈(SCH₃)₂₄] gold nanoclusters. The degree of chirality existing in the chiral clusters was calculated using the Hausdorff chirality measure. We found that the index of chirality is higher in the passivated clusters and decreases with the cluster size. These results are consistent with the observed chiroptical activity recently reported for glutahione-passivated gold nanoclusters, and provide theoretical support for the existence of chirality in these compounds.

Original language	English
Article number	073403
Pages (from-to)	734031-734034
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	66
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.66.073403
State	Published - 15 Aug 2002
Externally published	Yes

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title = "Chirality in bare and passivated gold nanoclusters",

abstract = "Chiral structures have been found as the lowest-energy isomers of bare (Au28 and Au55) and thiol-passivated [Au28(SCH3)16 and Au38(SCH3)24] gold nanoclusters. The degree of chirality existing in the chiral clusters was calculated using the Hausdorff chirality measure. We found that the index of chirality is higher in the passivated clusters and decreases with the cluster size. These results are consistent with the observed chiroptical activity recently reported for glutahione-passivated gold nanoclusters, and provide theoretical support for the existence of chirality in these compounds.",

author = "Garz{\'o}n, {I. L.} and Reyes-Nava, {J. A.} and Rodr{\'i}guez-Hern{\'a}ndez, {J. I.} and I. Sigal and Beltr{\'a}n, {M. R.} and K. Michaelian",

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doi = "10.1103/PhysRevB.66.073403",

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T1 - Chirality in bare and passivated gold nanoclusters

AU - Garzón, I. L.

AU - Reyes-Nava, J. A.

AU - Rodríguez-Hernández, J. I.

AU - Sigal, I.

AU - Beltrán, M. R.

AU - Michaelian, K.

PY - 2002/8/15

Y1 - 2002/8/15

N2 - Chiral structures have been found as the lowest-energy isomers of bare (Au28 and Au55) and thiol-passivated [Au28(SCH3)16 and Au38(SCH3)24] gold nanoclusters. The degree of chirality existing in the chiral clusters was calculated using the Hausdorff chirality measure. We found that the index of chirality is higher in the passivated clusters and decreases with the cluster size. These results are consistent with the observed chiroptical activity recently reported for glutahione-passivated gold nanoclusters, and provide theoretical support for the existence of chirality in these compounds.

AB - Chiral structures have been found as the lowest-energy isomers of bare (Au28 and Au55) and thiol-passivated [Au28(SCH3)16 and Au38(SCH3)24] gold nanoclusters. The degree of chirality existing in the chiral clusters was calculated using the Hausdorff chirality measure. We found that the index of chirality is higher in the passivated clusters and decreases with the cluster size. These results are consistent with the observed chiroptical activity recently reported for glutahione-passivated gold nanoclusters, and provide theoretical support for the existence of chirality in these compounds.

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U2 - 10.1103/PhysRevB.66.073403

DO - 10.1103/PhysRevB.66.073403

M3 - Artículo

SN - 0163-1829

VL - 66

SP - 734031

EP - 734034

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 7

M1 - 073403

ER -

Chirality in bare and passivated gold nanoclusters

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