EFFECT OF METAL AND HALOGEN IONS ON THE RELATIVE PERMITTIVITY OF SOMEDIAMINE COMPLEXES

The real part of the relative permittivity epsilon(r)' as well as the dielectric loss as represented by epsilon(r) '' for the compounds (CH2 )(n)(NH3)(2)MCl4-xBrx (where x = 0, 2, n = 2, 3 and M = Cu Co) have be en measured. The measurements were carried out as a function of temper ature and frequency. Both epsilon(r)' and epsilon(r) '' show the same relaxation phenomena which involves large reorientable dipoles in the total polarization. The phase transition observed at similar to 312 K for epsilon(r)' and epsilon(r) '' is expected from the variation in th e spacing between the adjacent metallic layers arising from the increa se in the number of carbon atoms and/or introducing the Br- ions in th e out of plane position.