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- Title
Homoleptic Alkynyl-Protected Gold Nanoclusters: Au<sub>44</sub>(PhC≡C)<sub>28</sub> and Au<sub>36</sub>(PhC≡C)<sub>24</sub>.
- Authors
Wan, Xian‐Kai; Guan, Zong‐Jie; Wang, Quan‐Ming
- Abstract
For the first time total structure determination of homoleptic alkynyl-protected gold nanoclusters is reported. The nanoclusters are synthesized by direct reduction of PhC≡CAu, to give Au44(PhC≡C)28 and Au36(PhC≡C)24. The Au44 and Au36 nanoclusters have fcc-type Au36 and Au28 kernels, respectively, as well as surrounding PhC≡C-Au-C2(Ph)Au-C≡CPh dimeric 'staples' and simple PhC≡C bridges. The structures of Au44(PhC≡C)28 and Au36(PhC≡C)24 are similar to Au44(SR)28 and Au36(SR)24, but the UV/Vis spectra are different. The protecting ligands influence the electronic structures of nanoclusters significantly. The synthesis of these two alkynyl-protected gold nanoclusters indicates that a series of gold nanoclusters in the general formula Au x(RC≡C) y as counterparts to Au x(SR) y can be expected.
- Subjects
NANOSTRUCTURED materials; HOMOLEPTIC compounds; LIGANDS (Chemistry); GOLD nanoparticle synthesis; ELECTRONIC structure
- Publication
Angewandte Chemie, 2017, Vol 129, Issue 38, p11652
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201706021