Structure and protonation study of the i
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Leonardo Marchetti; Luciano Pentimalli; Paolo Lazzeretti; Luisa Schenetti; Ferdi
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Article
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1975
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John Wiley and Sons
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English
β 491 KB
π 1 views
## Abstract The ^1^H NMR spectra of imidazo [1,2β__a__]pyrimidine derivatives have been analysed to study the aromatic character and protonation behaviour of this system. By employing the βring currentnβ model and calculations based on the coupled HartreeβFock method it can be deduced that a large