“…Therefore, the molecule could be defined as almost planar, in contrast with the envelope conformation of the related compounds [2-(4-methoxyphenyl)-3-phenyl-3-oxopropanalato-O,O 0 ]difluoroboron(III) [17] and [2, 3- [20], but it is similar to that reported for benzoylacetonatodifluoroboron(III) [19]. This planarity could be surprising in view of the steric requirements involved, although it has been demonstrated that high crowding can be tolerated in a planar system [21].…”