“…The corresponding dihedral angles of structurally related biphenyls, 2,2′dimethoxybiphenyls, 4,4′-dimethyl-2,2′,5,5′-dimethoxybiphenyl and 2,2′,4,4′,5,5′-hexamethoxybiphenyl, are comparable with 66.94 (7)°, 69.1° (no s.u. available) and 81.1 (1)°, respectively (Nakaema et al, 2008;Sun et al, 2001;Chattopadhyay et al, 1987). In the title compound, the methoxy group at C7′ has an almost coplanar arrangement with aromatic ring system, with a dihedral angle of 4.22 (18)°.…”