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Systematic efforts to synthesise fullerene containing LCs have produced avariety of successful model compounds. We present a simple molecular theoryrelating the self-organisation observed in these systems to their molecularstructure. The interactions are modelled by dividing each molecule into anumber of sub-molecular blocks to which specific interactions are assigned.Three types of blocks are introduced, corresponding to fullerene units,mesogenic units, and non-mesogenic linkage units. The blocks are constrained tomove on a rectangular 3-dimensional lattice and molecular flexibility isallowed by retaining a number of representative conformations within the blockrepresentation of the molecule. Calculations are presented for a variety ofmolecular architectures including twin mesogenic branch mono-adducts of C60,twin dendro-mesogenic branch mono-adducts and conical (badminton shuttlecock)multi-adducts of C60. In spite of its many simplifications, the theory accountsremarkably well for the phase behaviour of these systems.Comment: 22 pages, 9 figure

A simple theory of molecular organization in fullerene-containing liquid crystals