Premium
Experimental Detection of Tetraoxygen
Author(s) -
Cacace Fulvio,
de Petris Giulia,
Troiani Anna
Publication year - 2001
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20011105)40:21<4062::aid-anie4062>3.0.co;2-x
Subject(s) - dissociation (chemistry) , mass spectrometry , research council , gas phase , ionization , chemistry , philosophy , chromatography , organic chemistry , ion , linguistics , government (linguistics)
Although suggested by Lewis in 1924 and theoretically predicted, O 4 has so far proved extremely elusive, defying all attempts at the positive experimental detection of a bound, intact O 4 species. The search has now been brought to an end by the conclusive proof, achieved by neutralization–re‐ionization mass spectrometry (see picture), of the existence of intact O 4 as a gas‐phase species with a lifetime in excess of 1 μs, whose dissociation requires overcoming a barrier of the order of 10 kcal mol −1 .