Low-temperature crystal data for pure and Lu-doped TGS

Crystal data for pure TGS and TGS doped with Lu were obtained at 150 K with a SMART CCD System for Single Crystal Diffraction. The results obtained show that the intramolecular hydrogen bond lengths for the ferroelectric phase depend on the temperature-the length decreases at low temperature (150 K) in comparison with hydrogen bond lengths at room temperatures. The intramolecular bond lengths between nonhydrogen atoms do not show a considerable change.