A single-crystal e.s.r. study has been carried out on copper(II) ions doped into aquatris(L-glutamato)cadmium monohydrate. The copper(II) site in this lattice was found to have approximate monoclinic symmetry with gz = 2.3545, gy = 2.0920, gx = 2.0678, AZ = 0.0135, Ay = 0.0020, AX = 0.0027, AZN = 0.0012, AyN = 0.0009, and AXN = 0.0006 cm-1. The extent of non-coincidence of g and A principal directions was ca. 5° in the xy plane. It was concluded that a small admixture of |3z2 - r2〉 into the ground state formed by a linear combination of |x2 - y2〉 and |xy〉 could account for the experimentally determined anisotropy. The e.s.r. data taken at low temperatures have been related to molecular bond directions furnished by previously published room temperature X-ray data.
Electron spin resonance study of copper(II) ions in powder and crystals of aquatris(L-glutamato)cadmium(II) monohydrate
BONOMO, Raffaele;
1983-01-01
Abstract
A single-crystal e.s.r. study has been carried out on copper(II) ions doped into aquatris(L-glutamato)cadmium monohydrate. The copper(II) site in this lattice was found to have approximate monoclinic symmetry with gz = 2.3545, gy = 2.0920, gx = 2.0678, AZ = 0.0135, Ay = 0.0020, AX = 0.0027, AZN = 0.0012, AyN = 0.0009, and AXN = 0.0006 cm-1. The extent of non-coincidence of g and A principal directions was ca. 5° in the xy plane. It was concluded that a small admixture of |3z2 - r2〉 into the ground state formed by a linear combination of |x2 - y2〉 and |xy〉 could account for the experimentally determined anisotropy. The e.s.r. data taken at low temperatures have been related to molecular bond directions furnished by previously published room temperature X-ray data.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
