Supramolecular synthon polymorphism in 2 : 1 co-crystal of 4-hydroxybenzoic acid and 2,3,5,6-tetramethylpyrazine

被引:127
作者
Sreekanth, B. R. [1 ]
Vishweshwar, Peddy [1 ]
Vyas, K. [1 ]
机构
[1] Dr Reddys Labs Ltd, Dept Analyt Res, Discovery Res, Hyderabad 500049, Andhra Pradesh, India
关键词
PHARMACEUTICAL PHASES; HYDROGEN-BONDS; SOLID-STATE; TRICLINIC POLYMORPHS; MOLECULAR-COMPLEXES; COCRYSTALS; DESIGN; CONCOMITANT; 1/1-COMPLEX; TAPES;
D O I
10.1039/b700082k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Co-crystals of 4-hydroxybenzoic acid and 2,3,5,6-tetramethylpyrazine (2 : 1) exhibit the first supramolecular synthon polymorphism in a co-crystal; metastable anti-hierarchic polymorph I converts to stable hierarchic form II.
引用
收藏
页码:2375 / 2377
页数:3
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