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Cobalt-catalysed growth of carbon nanotubes with single-atomic-layer walls
CARBON exhibits a unique ability to form a wide range of structures. In an inert atmosphere it condenses to form hollow, spheroidal fullerenes1–4. Carbon deposited on the hot tip of the cathode ofExpand
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Atoms in carbon cages: the structure and properties of endohedral fullerenes
Encapsulating atoms or molecules inside fullerene cages could give rise to a myriad of novel molecules and materials. The existence of such species is now strongly supported by a growing body ofExpand
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Vibrational Raman and infrared spectra of chromatographically separated C60 and C70 fullerene clusters
Abstract We report vibrational Raman and infrared spectra for chemically separated C 60 and C 70 fullerenes. Thin film samples were prepared by subliming the chromatographically separated speciesExpand
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REMPI spectroscopy of cytosine
We report resonant two-photon ionization spectra of laser desorbed, jet cooled, cytosine, 1-methyl cytosine, 5-methyl cytosine, and dimers of these. Unlike other pyrimidine bases, cytosine exhibitsExpand
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On the Photochemistry of Purine Nucleobases
We present R2PI spectra of a series of purine nucleobases, nucleosides, and related derivatives, including adenine, guanine, guanosine, 2-aminopurine, 2,6-diaminopurine, 9-ethyladenine, andExpand
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Guanine tautomerism revealed by UV–UV and IR–UV hole burning spectroscopy
The vibronic spectrum of laser desorbed and jet cooled guanine consists of bands from three different tautomers of guanine as revealed by UV–UV and IR–UV double resonance spectroscopy.Expand
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Laser desorption jet-cooling of organic molecules
Laser desorption followed by jet-cooling allows wavelength-selective as well as mass-selective detection of molecules desorbed from a surface without fragmentation. The cooling characteristics andExpand
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IR–UV double-resonance spectroscopy of the nucleobase adenine
We present R2PI and IR–UV double resonance spectra of the nucleobase adenine seeded in a supersonic jet. We show that there is only one tautomer of adenine which absorbs in the wavelength range 36Expand
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REMPI Spectroscopy of Jet-Cooled Guanine
Figure 1. REMPI spectrum of jet-cooled guanine. The spectrum consists of four parts, as indicated by the horizontal arrows, that were recorded independently. In each part the ionization laser fluenceExpand
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Resonance-Enhanced Multiphoton Ionization Spectroscopy of Dipeptides
We report resonance-enhanced multiphoton ionization (REMPI) spectroscopy of laser-desorbed, jet-cooled dipeptides, containing either tyrosine or phenylalanine as an aromatic chromophore (C). TheExpand
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