Liu Mu-Song, Hu Pan-Pan, Zhou Tao
Acta Crystallogr Sect E Struct Rep Online. 2012 Apr 1;68(Pt 4):o1064. doi: 10.1107/S1600536812010276. Epub 2012 Mar 14.
In the title mol-ecule, C(17)H(20)O(8), the two pyran rings form a dihedral angle of 61.2 (2)°. The two hy-droxy-methyl groups are each disordered over two sets of sites in a 0.764 (3):0.236 (3) ratio. In the crystal, O-H⋯O hydrogen bonds link the mol-ecules into layers parallel to the ac plane.
在标题分子C(17)H(20)O(8)中,两个吡喃环形成的二面角为61.2 (2)°。两个羟甲基各自在两组位置上无序排列,比例为0.764 (3):0.236 (3)。在晶体中,O—H⋯O氢键将分子连接成平行于ac平面的层。