Magnetic properties of DL-penicillamine-Cu(I,II) complex.
The complex, DL-penicillamine-Cu(I,II), was investigated by ESR in solution. The spin Hamiltonian parameters determined are g|| = 2.414, g⊥ = 2.080, and A|| = 123 G. The paramagnetic susceptibility of the solid complex measured from 77°K to 230°K followed the Curie–Weiss law with a Curie constant of 0.45°Kemu/mol, a Weiss constant of −1.5°K. A spin concentration is obtained to be 99% as pure doublet, S = 1/2, based on the molecular composition proposed by Sugiura.