X-ray magnetic circular dichroism of size-selected, thiolated gold clusters

Yuichi Negishi; Hironori Tsunoyama; Motohiro Suzuki; Naomi Kawamura; Michio M. Matsushita; Koichi Maruyama; Tadashi Sugawara; Toshihiko Yokoyama; Tatsuya Tsukuda

doi:10.1021/ja062815z

X-ray magnetic circular dichroism of size-selected, thiolated gold clusters

Yuichi Negishi, Hironori Tsunoyama, Motohiro Suzuki, Naomi Kawamura, Michio M. Matsushita, Koichi Maruyama, Tadashi Sugawara, Toshihiko Yokoyama, Tatsuya Tsukuda

化学科

研究成果: Article › 査読

125 被引用数 (Scopus)

抄録

We report herein the X-ray magnetic circular dichroism (XMCD) at the Au L_2,3 edges of a series of Au clusters protected by glutathione (GSH). The samples used here included Au_N(SG)_M with (N, M) = (10, 10), (15, 13), (18, 14), (22, 16), (25, 18), (29, 20), (39, 24) and a sodium gold(I) thiomalate (SGT) as a reference. Magnetic moments per cluster were found to be increased with size, whereas those per Au-S bond were nearly constant. This finding suggests that a localized hole created by Au-S bonding at the gold/glutathione interface, rather than the quantum size effect, is responsible for the spin polarization of gold clusters.

本文言語	English
ページ（範囲）	12034-12035
ページ数	2
ジャーナル	Journal of the American Chemical Society
巻	128
号	37
DOI	https://doi.org/10.1021/ja062815z
出版ステータス	Published - 2006 9月 20

ASJC Scopus subject areas

触媒
化学 (全般)
生化学
コロイド化学および表面化学

文献へのアクセス

10.1021/ja062815z

他のファイルとリンク

引用スタイル

@article{1f909ace13424fc38ab1050388ae6b99,

title = "X-ray magnetic circular dichroism of size-selected, thiolated gold clusters",

abstract = "We report herein the X-ray magnetic circular dichroism (XMCD) at the Au L2,3 edges of a series of Au clusters protected by glutathione (GSH). The samples used here included AuN(SG)M with (N, M) = (10, 10), (15, 13), (18, 14), (22, 16), (25, 18), (29, 20), (39, 24) and a sodium gold(I) thiomalate (SGT) as a reference. Magnetic moments per cluster were found to be increased with size, whereas those per Au-S bond were nearly constant. This finding suggests that a localized hole created by Au-S bonding at the gold/glutathione interface, rather than the quantum size effect, is responsible for the spin polarization of gold clusters.",

author = "Yuichi Negishi and Hironori Tsunoyama and Motohiro Suzuki and Naomi Kawamura and Matsushita, {Michio M.} and Koichi Maruyama and Tadashi Sugawara and Toshihiko Yokoyama and Tatsuya Tsukuda",

year = "2006",

month = sep,

day = "20",

doi = "10.1021/ja062815z",

language = "English",

volume = "128",

pages = "12034--12035",

journal = "Journal of the American Chemical Society",

issn = "0002-7863",

publisher = "American Chemical Society",

number = "37",

}

TY - JOUR

T1 - X-ray magnetic circular dichroism of size-selected, thiolated gold clusters

AU - Negishi, Yuichi

AU - Tsunoyama, Hironori

AU - Suzuki, Motohiro

AU - Kawamura, Naomi

AU - Matsushita, Michio M.

AU - Maruyama, Koichi

AU - Sugawara, Tadashi

AU - Yokoyama, Toshihiko

AU - Tsukuda, Tatsuya

PY - 2006/9/20

Y1 - 2006/9/20

N2 - We report herein the X-ray magnetic circular dichroism (XMCD) at the Au L2,3 edges of a series of Au clusters protected by glutathione (GSH). The samples used here included AuN(SG)M with (N, M) = (10, 10), (15, 13), (18, 14), (22, 16), (25, 18), (29, 20), (39, 24) and a sodium gold(I) thiomalate (SGT) as a reference. Magnetic moments per cluster were found to be increased with size, whereas those per Au-S bond were nearly constant. This finding suggests that a localized hole created by Au-S bonding at the gold/glutathione interface, rather than the quantum size effect, is responsible for the spin polarization of gold clusters.

AB - We report herein the X-ray magnetic circular dichroism (XMCD) at the Au L2,3 edges of a series of Au clusters protected by glutathione (GSH). The samples used here included AuN(SG)M with (N, M) = (10, 10), (15, 13), (18, 14), (22, 16), (25, 18), (29, 20), (39, 24) and a sodium gold(I) thiomalate (SGT) as a reference. Magnetic moments per cluster were found to be increased with size, whereas those per Au-S bond were nearly constant. This finding suggests that a localized hole created by Au-S bonding at the gold/glutathione interface, rather than the quantum size effect, is responsible for the spin polarization of gold clusters.

UR - http://www.scopus.com/inward/record.url?scp=33748773083&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33748773083&partnerID=8YFLogxK

U2 - 10.1021/ja062815z

DO - 10.1021/ja062815z

M3 - Article

C2 - 16967930

AN - SCOPUS:33748773083

SN - 0002-7863

VL - 128

SP - 12034

EP - 12035

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 37

ER -

X-ray magnetic circular dichroism of size-selected, thiolated gold clusters

抄録

ASJC Scopus subject areas

文献へのアクセス

他のファイルとリンク

フィンガープリント

引用スタイル