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Guanidinium Ions. I. A Nuclear Magnetic Resonance Study of Proton Exchange in Methylguanidinium Salts 1,2

✍ Scribed by Lowe, James U.; Barefoot, Rupert D.; Tompa, Albert S.


Book ID
127205743
Publisher
American Chemical Society
Year
1966
Tongue
English
Weight
394 KB
Volume
31
Category
Article
ISSN
0022-3263

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## Abstract The ^1^H NMR spectra of imidazo [1,2‐__a__]pyrimidine derivatives have been analysed to study the aromatic character and protonation behaviour of this system. By employing the β€˜ring currentn’ model and calculations based on the coupled Hartree‐Fock method it can be deduced that a large