Journal
JOURNAL OF NANOPARTICLE RESEARCH
Volume 15, Issue 4, Pages -Publisher
SPRINGER
DOI: 10.1007/s11051-013-1522-8
Keywords
Atomically precise; Cu cluster; 2-Phenylethanethiol; MALDI MS; ESI MS
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Funding
- Department of Science and Technology, Government of India
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A copper cluster protected with 2-phenylethanethiol (PET) exhibiting distinct optical features in UV/Vis spectroscopy is reported. Matrix-assisted laser desorption ionisation mass spectrometry of the cluster shows a well-defined molecular ion peak at m/z 5,800, assigned to similar to Cu-38(PET)(25). Fragmented ions from the cluster show the expected isotope patterns in electrospray ionisation mass spectrometry. The as-synthesized cluster was well-characterised using other tools as well. Clusters undergo decomposition in about 2 h after synthesis as a metallic few-atom core of copper is highly unstable. The products of decomposition were also characterised.
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