For a uniaxial molecule (in which two of the principal axes are equivalent), alignment can vary between the extremes of the non-equivalent molecular axis aligned parallel (planar anchoring; side-on orientation for an oblate ellipsoid) or perpendicular Department of Chemistry, School of Physical Sciences, The University of Adelaide, Adelaide, Australia, Tel: +61 8 8313 5580; Email: david.huang@adelaide.edu.au † Electronic Supplementary Information (ESI) available. See DOI: 00.0000/00000000. end/side-on face-on Fig. Face-on versus end/side-on alignment at an interface for diskshaped particles. Interface orientation of rod-like particles can be similarly dened by the angle of their long axis with respect to the interface. For uniaxial particles, end-on and side-on orientations are equivalent.