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A mass spectrometry and surface enhanced Raman spectroscopy study of the interaction between linear carbon chains and noble metals (121 visite)

Grasso G, D'Urso L, Messina E, Cataldo F, Puglisi O, Spoto G, Compagnini G

Carbon (ISSN: 0008-6223), 2009; 47(11): 2611-2619.

Tipo di articolo: Journal Article,

Impact factor: 4.504

Impact factor a 5 anni: 5.098


Parole chiave: Carbon Structures, Covalently Bonded, Cumulenes, Double Bonds, Graphite Rod, Linear Carbon, Matrix Assisted Laser Desorption Ionization, Metal Bonds, Metal Colloids, Noble Metals, Organometallic Compounds, Polycrystalline, Polyynes, Pulsed Laser Ablation, Single Bond, Sp Hybridization, Surface Enhanced Raman Scattering, Surface Enhanced Raman Spectroscopy, Weak Bond, Atmospheric Ionization, Atmospheric Pressure, Ionization Of Liquids, Mass Spectrometers, Organic Polymers, Pulsed Laser Applications, Silver, Spectrum Analysis, Precious Metals,

Url: http://www.scopus.com/inward/record.url?eid=2-s2.0-67649876124&partnerID=40&md5=42520790cc5beaa8dd238fc8188fc519

Linear carbon chains (LCCs) contain sp hybridization either as alternating triple and single bonds (polyynes) or with consecutive double bonds (cumulenes). They are detected here in solution by a combined mass spectrometry (MS) and surface enhanced Raman scattering approach, and new insight into the carbon structures, formed after performing pulsed laser ablation of a polycrystalline graphite rod in water stabilized by the presence of metals is given. The possibility to establish a LCC-metal bond is also investigated by carrying out atmospheric pressure matrix assisted laser desorption ionization MS experiments on copper and silver polyynides. It was found that while the interaction of metal colloids with LCCs results mainly in a weak bond, polyynides appear as true organometallic compounds in which the metal is covalently bonded to the LCCs. © 2009 Elsevier Ltd. All rights reserved.
*** IBB - CNR ***

Dipartimento di Scienze Chimiche, Università di Catania, Viale Andrea Doria 6, 95125 Catania, Italy

INAF - Osservatorio Astrofisico di Catania, Via S. Sofia 78, 95123 Catania, Italy

Istituto Biostrutture e Bioimmagini, CNR, Viale Andrea Doria 6, Catania, Italy
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Tracy, J. B., Crowe, M. C., Parker, J. F., Hampe, O., Fields-Zinna, C. A., Dass, A., Electrospray ionization mass spectrometry of uniform and mixed monolayer nanoparticles: Au [S (CH) Ph] and Au [S (CH) Ph] (SR) (2007) J Am Chem Soc, 129 (51), pp. 16209-16215

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