HABIT95 - A program for predicting the morphology of molecular crystals as a function of the growth environment

Using the internal structure as a starting point, the computer program HABIT95 uses the atom-atom approximation to determine the intermolecular interactions in a molecular crystal. Summing all the atom-atom interactions yields the lattice energy. Calculating the interactions along specific crystallographic directions allows the slice and attachment energies to be calculated. The attachment energy is a measure of the relative growth rate along specific directions and consequently the growth morphology can be modelled. The effects of solvents and impurities are considered by calculating modified attachment energy terms leading to simulated habit-modified morphologies. The program is written in standard Fortran 77 and is available for Unix-based platforms.