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Heterocumulenes, 9 Ethenedione Oxime: Photochemical Generation and Matrix-spectroscopic Identification

✍ Scribed by Maier, Günther ;Reisenauer, Hans Peter ;Röther, Bernd ;Eckwert, Jürgen

Publisher: John Wiley and Sons
Year: 2006
Tongue: English
Weight: 411 KB
Volume: 1996
Category: Article
ISSN: 0947-3440
DOI: 10.1002/jlac.199619960302

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✦ Synopsis

Abstract

The title compound 2, a very close derivative of the still elusive ethenedione (1), was generated by photocleavage of the three different precursor molecules 7–9 in an argon matrix at 10 K. The structure elucidation of monoxime 2 is based on the comparison of the experimental and calculated IR spectrum.

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## Abstract Irradiation of squaric acid (4) in an argon matrix at 10 K leads to ethynediol (dihydroxyacetylene) (1) via bis (hydroxyketenyl) 5 and deltic acid (6). The identification of 1 is based on the comparison between the experimental and calculated IR spectrum.