1. Syntheses, Crystal Structures, and Magnetic Properties of Two Mononuclear Nickel-Nitronyl Nitroxide Radical Compounds.
- Author
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Zhai, Bin, Li, Zhong ‐ Yi, Zhang, Fu ‐ Qiang, Li, Su ‐ Zhi, Zhang, Fu ‐ Li, Zhang, Chi, Zhang, Xiang ‐ Fei, Cao, Guang ‐ Xiu, and Ma, Yue
- Subjects
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CHEMICAL synthesis , *CRYSTAL structure research , *MAGNETIC properties , *LIGANDS (Chemistry) , *NICKEL - Abstract
Two nickel(II) complexes were synthesized and structurally as well as magnetically characterized by using two positional isomeric nitronyl nitroxide radical ligands and H3cda as co-ligand: [Ni(NIToPy)(cda)]H2O ·CH3OH ( 1) and [Ni(IM4Py)2(cda)H2O] ( 2) [NIToPy = 2-(3′-pyridinyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazolyl-1-oxyl-3-oxide; IM4Py = 2-(4′-pyridinyl)-4,4,5,5-tetramethylimidazoline-l-oxyl; H3cda = 4-hydroxypyridine-2,6-dicarboxylic acid]. Single-crystal structures analyses show that both complexes have similar mononuclear structures, in which the central NiII ions are hexacoordinated with a distorted octahedral arrangement. The magnetic properties of 1 and 2 were studied, and antiferromagnetic interactions between NiII ion and radicals are observed. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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