Synthesis and characterization of CH3 NH3 HgClBr2
Written by sctunisie no commentsA new mercury complex CH3NH3HgClBr2 was prepared with partial substitution of chlorine by bromine in the ferroelectric compound CH3NH3HgCl3. The complex has been characterized by different physico-chemical methods. X-ray studies of CH3NH3HgClBr2 showed an isomorphous character with the paraelectric phase of CH3NH3HgCl3. A structure for CH3NH3HgClBr2 is proposed. Raman spectra of polycrystalline samples of CH3NH3HgClBr2, CH3NH3HgCl3 and CH3NH3HgBr3 have been recorded. Assignments of most the observed bands are proposed. A comparative study of the spectra confirms the proposed structure.
R. Ben Hassen, A. Ben Salah
Pages: 545-554