Ionic disparity of identical molecules in polymorphs

被引：21

作者：

Katrusiak, A

Katrusiak, A

机构：

[1] Adam Mickiewicz Univ, Fac Chem, PL-60780 Poznan, Poland

[2] Poznan Univ Med Sci, Fac Pharm, PL-60780 Poznan, Poland

来源：

ORGANIC LETTERS | 2003年 / 5卷 / 11期

关键词：

D O I：

10.1021/ol034494r

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Formation of ionic pairs of identical molecules, extremely common in Nature but exceptional for diffractometric observations in the crystalline state, has been found in one of two polymorphs of a nucleobase analogue, 4,6-pyrimidinedione (1). The occurrence of the neutral and ionic polymorphs of 1 in many respects resembles neutral-ionic transitions of electon-donor/acceptor complexes. The ionization affects the reactivity of 1 and illustrates general properties of H-tautomers with low-disproportionation energy.

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页码：1903 / 1905

页数：3

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