Luliński Sergiusz, Serwatowski Janusz
Physical Chemistry Department, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland.
Acta Crystallogr Sect E Struct Rep Online. 2010 Jun 18;66(Pt 7):o1711-2. doi: 10.1107/S160053681002297X.
In the title mol-ecule, C(18)H(23)BO(4), the dihedral angle between the least-squares planes of the aromatic rings is 84.88 (3)°. The B atom deviates by 0.202 (1) Å from the least-squares plane of the mesityl ring. All of the meth-oxy groups are approximately coplanar with the 2,4,6-trimeth-oxy-phenyl ring, whereas the BOH group is twisted with respect to it by 19.5°. The borinic OH group is engaged in an intra-molecular O-H⋯O hydrogen bond with one of ortho-meth-oxy groups. The mol-ecular structure is stabilized by weak C-H⋯O contacts. In the crystal, mol-ecules are linked by weak C-H⋯O and C-H⋯π inter-actions, generating a three-dimensional network.
在标题分子C(18)H(23)BO(4)中，芳香环的最小二乘平面之间的二面角为84.88 (3)°。硼原子偏离均三甲苯环的最小二乘平面0.202 (1) Å。所有甲氧基与2,4,6-三甲氧基苯环大致共面，而BOH基团相对于它扭转了19.5°。硼酸羟基与邻位甲氧基之一形成分子内O-H⋯O氢键。分子结构通过弱C-H⋯O接触得以稳定。在晶体中，分子通过弱C-H⋯O和C-H⋯π相互作用相连，形成三维网络。
