In:
Angewandte Chemie, Wiley, Vol. 127, No. 34 ( 2015-08-17), p. 9964-9967
Abstract:
The structure of nanoparticles plays a critical role in dictating their material properties. Gold is well known to adopt face‐centered cubic (fcc) structure. Herein we report the first observation of a body‐centered cubic (bcc) gold nanocluster composed of 38 gold atoms protected by 20 adamantanethiolate ligands and two sulfido atoms ([Au 38 S 2 (SR) 20 ], where R=C 10 H 15 ) as revealed by single‐crystal X‐ray crystallography. This bcc structure is in striking contrast with the fcc structure of bulk gold and conventional Au nanoparticles, as well as the bi‐icosahedral structure of [Au 38 (SCH 2 CH 2 Ph) 24 ]. Th e bcc nanocluster has a distinct HOMO–LUMO gap of ca. 1.5 eV, much larger than the gap (0.9 eV) of the bi‐icosahedral [Au 38 (SCH 2 CH 2 Ph) 24 ]. The unique structure of the bcc gold nanocluster may be promising in catalytic applications.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v127.34
DOI:
10.1002/ange.201502667
Language:
German
Publisher:
Wiley
Publication Date:
2015
detail.hit.zdb_id:
506609-8
detail.hit.zdb_id:
1479266-7
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