Crystal growth and vibrationnal spectra of lithium hydrogen malate LiH3(C4H4O5)2

Single crystals of Lithium Hydrogen Malate (LHM) have been grown by slow evaporation of aqueous solutions. The crystals structures have been controlled by X-rays diffraction experiments. Differential calorimetry (DCA) and Thermogravimetry (TGA) analysis performed on LHM showed no thermal anomaly from room temperature to the start of decomposition at 440K indicating the absence of any high temperature phase transition. The Raman and Infrared reflectivity spectra of LHM were measured at room temperature and at 10K, they did not reveal either any low temperature structural phase transition.