Multinuclear spin relaxation study on mercury(II) cyanide

Following coupling constants for Hg(CN)(2) in DMSO solution have been measu red: (1)J(C-13-Hg-199), (1)J(C-13-N-15), (2)J(Hg-199-N-15). The longitudina l C-13 and N-15 relaxation times and transverse C-13 relaxation times at tw o magnetic fields, and additionally the longitudinal Hg-199 relaxation time for C-13 or N-15 enriched samples have also been measured. Quantitative in terpretation of those data has delivered the values of the reorientation ra te of the solute molecule and the shielding anisotropy parameters of carbon and nitrogen nuclei. Some earlier literature results concerning water solu tion of the investigated molecule have also been commented.