Ag44(SR)304−: a silver-thiolate superatom complexElectronic supplementary information (ESI) available: Extended mass spectra and SV-AUC data. See DOI: 10.1039/c2nr30773a
Intensely and broadly absorbing nanoparticles (IBANs) of silver protected by arylthiolates were recently synthesized and showed unique optical properties, yet question of their dispersity and their molecular formulas remained. Here IBANs are identified as a superatom complex with a molecular formula...
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| creator | Harkness, Kellen M Tang, Yun Dass, Amala Pan, Jun Kothalawala, Nuwan Reddy, Vijay J Cliffel, David E Demeler, Borries Stellacci, Francesco Bakr, Osman M McLean, John A |
| description | Intensely and broadly absorbing nanoparticles (IBANs) of silver protected by arylthiolates were recently synthesized and showed unique optical properties, yet question of their dispersity and their molecular formulas remained. Here IBANs are identified as a superatom complex with a molecular formula of Ag
44
(SR)
30
4−
and an electron count of 18. This molecular character is shared by IBANs protected by 4-fluorothiophenol or 2-naphthalenethiol. The molecular formula and purity is determined by mass spectrometry and confirmed by sedimentation velocity-analytical ultracentrifugation. The data also give preliminary indications of a unique structure and environment for Ag
44
(SR)
30
4−
.
Intensely and broadly absorbing nanoparticles protected by arylthiolates are identified as Ag
44
(SR)
30
4−
, a monodisperse silver-thiolate superatom complex. |
| doi_str_mv | 10.1039/c2nr30773a |
| format | Article |
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44
(SR)
30
4−
and an electron count of 18. This molecular character is shared by IBANs protected by 4-fluorothiophenol or 2-naphthalenethiol. The molecular formula and purity is determined by mass spectrometry and confirmed by sedimentation velocity-analytical ultracentrifugation. The data also give preliminary indications of a unique structure and environment for Ag
44
(SR)
30
4−
.
Intensely and broadly absorbing nanoparticles protected by arylthiolates are identified as Ag
44
(SR)
30
4−
, a monodisperse silver-thiolate superatom complex.</description><identifier>ISSN: 2040-3364</identifier><identifier>EISSN: 2040-3372</identifier><identifier>DOI: 10.1039/c2nr30773a</identifier><language>eng</language><creationdate>2012-06</creationdate><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids></links><search><creatorcontrib>Harkness, Kellen M</creatorcontrib><creatorcontrib>Tang, Yun</creatorcontrib><creatorcontrib>Dass, Amala</creatorcontrib><creatorcontrib>Pan, Jun</creatorcontrib><creatorcontrib>Kothalawala, Nuwan</creatorcontrib><creatorcontrib>Reddy, Vijay J</creatorcontrib><creatorcontrib>Cliffel, David E</creatorcontrib><creatorcontrib>Demeler, Borries</creatorcontrib><creatorcontrib>Stellacci, Francesco</creatorcontrib><creatorcontrib>Bakr, Osman M</creatorcontrib><creatorcontrib>McLean, John A</creatorcontrib><title>Ag44(SR)304−: a silver-thiolate superatom complexElectronic supplementary information (ESI) available: Extended mass spectra and SV-AUC data. See DOI: 10.1039/c2nr30773a</title><description>Intensely and broadly absorbing nanoparticles (IBANs) of silver protected by arylthiolates were recently synthesized and showed unique optical properties, yet question of their dispersity and their molecular formulas remained. Here IBANs are identified as a superatom complex with a molecular formula of Ag
44
(SR)
30
4−
and an electron count of 18. This molecular character is shared by IBANs protected by 4-fluorothiophenol or 2-naphthalenethiol. The molecular formula and purity is determined by mass spectrometry and confirmed by sedimentation velocity-analytical ultracentrifugation. The data also give preliminary indications of a unique structure and environment for Ag
44
(SR)
30
4−
.
Intensely and broadly absorbing nanoparticles protected by arylthiolates are identified as Ag
44
(SR)
30
4−
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44
(SR)
30
4−
and an electron count of 18. This molecular character is shared by IBANs protected by 4-fluorothiophenol or 2-naphthalenethiol. The molecular formula and purity is determined by mass spectrometry and confirmed by sedimentation velocity-analytical ultracentrifugation. The data also give preliminary indications of a unique structure and environment for Ag
44
(SR)
30
4−
.
Intensely and broadly absorbing nanoparticles protected by arylthiolates are identified as Ag
44
(SR)
30
4−
, a monodisperse silver-thiolate superatom complex.</abstract><doi>10.1039/c2nr30773a</doi><tpages>6</tpages></addata></record> |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| title | Ag44(SR)304−: a silver-thiolate superatom complexElectronic supplementary information (ESI) available: Extended mass spectra and SV-AUC data. See DOI: 10.1039/c2nr30773a |
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