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Synthesis and characterization of methylammonium tetrachlorocuprate (II) dihydrate crystals
Author(s) -
Amirthaganesan G.,
Kandhaswamy M. A.,
Dhandapani M.
Publication year - 2007
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200610889
Subject(s) - crystallinity , stoichiometry , raman spectroscopy , crystallization , hydrate , thermogravimetric analysis , molecule , evaporation , water of crystallization , differential thermal analysis , chemistry , phase (matter) , crystallography , infrared spectroscopy , fourier transform infrared spectroscopy , thermal analysis , analytical chemistry (journal) , inorganic chemistry , thermal , chemical engineering , diffraction , organic chemistry , physics , optics , thermodynamics , engineering , meteorology
Single crystals of methylammonium tetrachlorocuprate (II) dihydrate were obtained by slow evaporation method at room temperature. The crystals were characterized through powder XRD, thermogravimetric (TG‐DTA), low temperature DSC studies and FTIR and far IR spectra. While the powder XRD confirms the crystallinity of the compound, the TG and DTA studies confirm the formation of the compound in the stoichiometric ratio and the presence of two water molecules of crystallization. The low temperature DSC study indicates a thermal anomaly at ‐3°C. The ordering of CH 3 NH 3 group at low temperature causes phase transitions in the compound. The IR spectra characterize the various chemical bonding and water molecules in the compound. Laser Raman spectral studies under progress would help understand the mechanism of phase transitions at low temperatures. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)