(2-Methoxy-1,3-phenylene)diboronic acid

Abstract

The mol-ecular structure of the title compound, 2-CH3O - C6H3-1,3-[B(OH)2]2 or C7H10B2O5, features two intra-molecular O - H⋯O hydrogen bonds of different strengths. One of the boronic acid groups is almost coplanar with the aromatic ring, whereas the second is significantly twisted. Mol-ecules are linked by inter-molecular O - H⋯O hydrogen bonds, generating infinite chains cross-linked to form a two-dimensional sheet structure aligned parallel to the (01 ) plane.