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Dr. Emilio J. Cocinero, Prof. Alberto Lesarri, Dr. Patricia Écija, Dr. Francisco J. Basterretxea, Prof. Jens-Uwe Grabow, Dr. José A. Fernández and Prof. Fernando Castaño Ribose Found in the Gas Phase Angewandte Chemie International Edition 51

Article first published online: 28 DEC 2011 | DOI: 10.1002/anie.201107973

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Sweet truth: The search for sugars in interstellar space is hampered by a lack of spectroscopic information. D-Ribose is now the first C5 sugar observed in the gas phase using microwave spectroscopy. The rotational spectrum revealed six conformations of free ribose, adopting preferentially β-pyranose rings and higher-energy α-pyranose forms. No evidence of α-/β-furanoses or linear forms was found, unlike biological systems, where β-furanoses are found in RNA.

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