The powder Zeeman study of CH3NH3Hg2CL5by the nuclear quadrupole resonance

The temperature dependence of the Cl nuclear quadrupole resonance (NQR) frequency in CH3NH3Hg2C15 was investigated for temperatures between 77 and 340 K where three frequencies were found. The Zeeman effect on the NQR of 35 Cl in a crystalline powder ofA CH3NH3Hg2C15 was studied. The asymmetry parameter (eta) of the electric field gradient for the second frequency was obtained.