Semantic Scholar Open Access 2019 179 sitasi

Robust, Highly Luminescent Au13 Superatoms Protected by N-Heterocyclic Carbenes.

Mina R. Narouz Shinjiro Takano P. Lummis Tetyana I Levchenko A. Nazemi +8 lainnya

Lihat Sumber DOI

Abstrak

Gold superatom nanoclusters stabilized entirely by N-heterocyclic carbenes (NHCs) are reported. The reduction of well-defined NHC-Au-Cl complexes produces clusters com-prised of an icosahedral Au13 core surrounded by a symmetrical arrangement of 9 NHCs and 3 chlorides. X-ray crystallography shows that the clusters are characterized by multiple CH-π and π-π interactions, which rigidify the ligand and likely con-tribute to the exceptionally high photoluminescent quantum yields observed, up to 16.0 %, which is significantly greater than the most luminescent ligand-protected Au13 superatom cluster. Density functional theory analysis suggests that clus-ters are 8-electron superatoms with a wide HOMO-LUMO energy gap of 2 eV. Consistent with this, the clusters have high stability relative to all-phosphine clusters.

Topik & Kata Kunci

Medicine Chemistry

Penulis (13)

Mina R. Narouz

Shinjiro Takano

P. Lummis

Tetyana I Levchenko

A. Nazemi

Sami Kaappa

Sami Malola

Goonay Yousefalizadeh

L. Calhoun

Kevin G. Stamplecoskie

H. Häkkinen

T. Tsukuda

C. Crudden

Format Sitasi

APA MLA BibTeX

Narouz, M.R., Takano, S., Lummis, P., Levchenko, T.I., Nazemi, A., Kaappa, S. et al. (2019). Robust, Highly Luminescent Au13 Superatoms Protected by N-Heterocyclic Carbenes.. https://doi.org/10.1021/jacs.9b07854

Akses Cepat

Lihat di Sumber doi.org/10.1021/jacs.9b07854

Informasi Jurnal

Tahun Terbit: 2019
Bahasa: en
Total Sitasi: 179×
Sumber Database: Semantic Scholar
DOI: 10.1021/jacs.9b07854
Akses: Open Access ✓