Abstract
Magnetic interaction and hyperfine coupling were investigated for Ni(OD) 2 as a reference of our series of studies of layer-structured Cu(II) assembled complexes. In crystal of Ni(OD) 2 , Ni(II) ions with S = 1 are bridged by hydroxyl ions to form an equilateral planer triangular lattice. Hyperfine coupling constant of deuterium of hydroxyl ions was determined to be −0.17 MHz from temperature dependence of isotropic shift of a magic angle spinning deuterium NMR spectrum. Ferromagnetic exchange interaction J the layer was estimated to be +3 K from the deuterium NMR shift by assuming Heisenberg model for planer triangular lattice. Present results indicated that magic angle spinning deuterium NMR is also useful to determine magnetic local structure and magnetic interaction of transition metal complexes with electron spins greater than S = 1/2.
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