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Polymorphism in Caffeine Citric Acid Cocrystals

机译:咖啡因柠檬酸共晶体的多态性

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摘要

A second polymorph of an anhydrous 1:1 caffeine citric acid cocrystal (C8H10N4O2, C6H8O7) is reported. Crystals were analyzed using single crystal X-ray diffraction and the structure was solved in the monoclinic space group P2(1)/c with unit cell parameters a = 13.7783(8) , b = 12.3149(8) , c = 9.6587(6) , and beta = 92.854(4)A degrees. The three dimensional hydrogen bonding network is compared to the two dimensional network of the previously reported polymorph.
机译:报道了无水1:1咖啡因柠檬酸共晶体(C8H10N4O2,C6H8O7)的第二种多晶型物。使用单晶X射线衍射分析晶体,并在单斜晶空间群P2(1)/ c中解析结构,其晶胞参数a = 13.7783(8),b = 12.3149(8),c = 9.6587(6) ,并且beta = 92.854(4)A度。将三维氢键网络与先前报道的多晶型物的二维网络进行比较。

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