Abstract
Two novel l-lysinium hydrogensquarate monohydrate ( 1) and the corresponding salt of the l-lysinium dication ( 2) are synthesized and their structure and properties elucidated in detail spectroscopically, thermally and structurally, using single crystal X-ray diffraction, linear-polarized solid-state IR-spectroscopy oriented colloid suspensions in nematic host, TGA, DSC, DTA methods, positive and negative HPLC tandem mass spectrometry (ESI-MS·MS). Quantum chemical methods are used to calculate the electronic structure, vibrational data and electronic spectra. Two novel structural motifs have been obtained, isolated [(HSq −)] and tetramolecular [(H 2Sq)(HSq) 2(Sq)] 4− anion, respectively. Preliminary second harmonic generation measurements are also performed.
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