4.6 Article

Further evidence for the assignment of the XCN band in astrophysical ice analogs to OCN- -: Spectroscopy and deuterium shift

Journal

ASTRONOMY & ASTROPHYSICS
Volume 379, Issue 2, Pages 588-591

Publisher

EDP SCIENCES S A
DOI: 10.1051/0004-6361:20011332

Keywords

methods : laboratory; ISM : molecules; infrared : ISM : lines and bands

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The nu (3) feature of the OCN- ion near 2160 cm(-1) which is produced by acid-base reactions in cryogenic HNCO/NH3 samples shows a small matrix induced deuterium shift. A similar shift is found for the XCN band near this position produced by photolysis of CO/NH3 ice. This agreement, together with the abundant evidence already in the literature, clearly demonstrates that the XCN feature can be assigned to OCN-.

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