1-D and 2-D Homoleptic Dicyanamide Structures, [Ph<sub>4</sub>P]<sub>2</sub>{Co<sup>II</sup>[N(CN)<sub>2</sub>]<sub>4</sub>} and [Ph<sub>4</sub>P]{M[N(CN)<sub>2</sub>]<sub>3</sub>} (M = Mn, Co)<sup>⊥</sup>
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The homoleptic complexes [Ph4P]2{Co[N(CN)2]4} and [Ph4P]{M[N(CN)2]3} [M = Co, Mn] have been structurally as well as magnetically characterized. The complexes containing {M[N(CN)2]4}2- form 1-D chains, which are bridged via a common dicyanamide ligand in {M[N(CN)2]3}- to form a 2-D structure. The five-atom [NCNCN]- bridging ligands lead to weak magnetic coupling along a chain. The six [NCNCN]- ligands lead to a 4T1g ground state for Co(II) which has an unquenched spin−orbit coupling that is reflected in the magnetic properties. Long-range magnetic ordering was not observed in any of these materials.
创建时间：
2016-08-17
