research papers
The crystal structures of three products of the reaction of 2-phenylphenol and BCl3 have been determined. The structures show intriguing packing patterns and an interesting case of pseudosymmetry. In addition, one of the two polymorphs has a primitive monoclinic crystal system, but it is twinned and emulates an orthorhombic C-centred structure.
research papers
Crystals of hexa-tert-butyldisilane undergo a reversible phase transition at 179 (2) K. The space group changes from Ibca (high temperature) to Pbca (low temperature), but the lattice constants a, b and c do not change significantly during the phase transition. In a new polymorph of 1,1,2,2-tetra-tert-butyl-1,2-diphenyldisilane, two independent molecules have rather similar conformations.
research papers
In two polymorphs of the tetrahydrofuran disolvate of 2,5-[(diphenylphosphanyl)methyl]-1,1,2,4,4,5-hexaphenyl-1,4-diphospha-2,5-diboracyclohexane and a pseudo-polymorph of the toluene solvate, the crystal packings are significantly different, but, surprisingly, their molecular conformations are the same.