Document Detail

To be or not to be: the early history of H3 and H3+.
MedLine Citation:
PMID:  23028168     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Triatomic hydrogen became a major research area only after 1980, but its history goes back to J. J. Thomson's discovery in 1911. In fact, the possible existence of H(3) was suggested as early as 1895. This paper outlines the history of H(3) and H(3)(+) up to the mid-1930s, when chemists and physicists ceased to believe in the existence of the H(3) molecule. In the intervening years, there was a great deal of interest in 'active hydrogen' and also in the configuration of H(3), which was examined by Bohr in 1919. While H(3) was abandoned, H(3)(+) was not. Although the properties of H(3)(+) were largely unknown, the existence of the ion was firmly established, and its structure studied by means of the new methods of quantum chemistry.
Helge Kragh
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Philosophical transactions. Series A, Mathematical, physical, and engineering sciences     Volume:  370     ISSN:  1364-503X     ISO Abbreviation:  Philos Trans A Math Phys Eng Sci     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-10-02     Completed Date:  2012-11-13     Revised Date:  2013-04-24    
Medline Journal Info:
Nlm Unique ID:  101133385     Medline TA:  Philos Trans A Math Phys Eng Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  5225-35     Citation Subset:  -    
Centre for Science Studies, Department of Physics and Astronomy, Aarhus University, 8000 Aarhus, Denmark.
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