“…Triglycine fluoberyllate (TGBe), (CH 2 NH 2 COOHÞ 3 Á H 2 BeF 4 ; exhibits a paraelectric-to-ferroelectric phase transition near 350 K: This substance was studied by various experimental techniques such as X-ray diffraction [27], dielectric spectroscopy [28,29], pyroelectric measurements [30], calorimetry [28], infrared spectroscopy [31], linear birefringence [32], and also by NMR. The dipolar probes 1 H and 19 F were used to determine spin-lattice relaxation times [19].…”