Vibrational studies of gel grown ferroelectric RbHC4H4O6 and SrC4H4O6.4H(2)O crystals

Single crystals of Rubidium Hydrogen Tartrate (RbHT) and Strontium Tartrate Tetrahydrate (SrTT) have been grown by a gel technique using a chemical re action method. A controlled reaction has been employed between tartaric aci d and feed solution (RbCl for RbHT and Sr(NO3)(2)) at room temperature. The laser Raman and FT-IR spectra of these crystals are recorded in the freque ncy range 100 - 4000 cm(-1). The presence of tartrate ion, monohydrogen tar trate ion, water molecules and external mode vibrational frequencies are id entified and discused. The doublet and broad nature of tartrate ion vibrati onal frequencies have also been observed and analysed.