Here, we report the crystal structure of D-psicose, C(6)H(12)O(6), one of the rare sugars. The compound crystallizes as the beta-anomer with rarely observed in pyranose carbohydrate structures trans-gauche orientation of the hydroxymethyl group relative to the pyranosyl ring. The crystal system is orthorhombic, space group P2(1)2(1)2(1), Z=4, with cell dimensions a=7.727(2), b=8.672(2), c=11.123(3)A, V=745.3(3)A(3). The pyranosyl ring adopts chair (2)C(5) conformation. The crystal structure at 100(2)K is stabilized by three-dimensional network of O-H...O and C-H...O intermolecular hydrogen bonds.

中文翻译：

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β-D-psicopyranose的晶体结构。

在这里，我们报告D-pscose，C（6）H（12）O（6），一种稀有糖的晶体结构。该化合物结晶为β-端基异构体，很少在吡喃糖碳水化合物结构中观察到羟甲基相对于吡喃糖基环的反式定位。晶体系统是正交晶系，空间群P2（1）2（1）2（1），Z = 4，晶胞尺寸a = 7.727（2），b = 8.672（2），c = 11.123（3）A， V ＝ 745.3（3）A（3）。吡喃糖基环采用椅子（2）C（5）构象。OH ... O和CH ... O分子间氢键的三维网络稳定了100（2）K处的晶体结构。