Dynamical electron diffraction from elastically bent organic crystals

Calculation of dynamical structure factors from a periodically curved crystal lattice have been carried out for the paraffin n-hexatriacontane, C₃₆H₇₄, and the linear polymer anhydrous nigeran, poly[(1 → 3)-α-D- maltose], (C₁₂H₂₀O₁₀)_n. These are compared to dynamical structure factors from a fiat crystal, and also to kinematic structure amplitudes from a bent lattice in order to determine the validity of considering each experimentally observed data perturbation separately. Individual treatment of these effects is found to be a good approximation so long as the crystal thickness and bend deformations are each small.