Dimerization of aromatic ureido pyrimidinedione derivatives: observation of an unexpected tautomer in the solid state.
نویسندگان
چکیده
Ureido pyrimidinedione derivatives with phenyl, 1-naphthyl and 2-naphthyl substituents form stable dimers via quadruple hydrogen bonding, but the 1-naphthyl derivative presents an unexpected tautomer in the solid state.
منابع مشابه
Organic mixed valency in quadruple hydrogen-bonded triarylamine dimers bearing ureido pyrimidinedione moieties.
Quadruple hydrogen-bonding interactions stabilized the mixed-valence states of dimers of triarylamine derivatives bearing an ureido pyrimidinedione moiety without any electronic coupling. This study represents the first example of proton-coupled "organic" mixed valency in solution with different substituents being used to control the stability.
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ورودعنوان ژورنال:
- Chemical communications
دوره 12 شماره
صفحات -
تاریخ انتشار 2008