期刊
INORGANIC CHEMISTRY
卷 53, 期 1, 页码 33-35出版社
AMER CHEMICAL SOC
DOI: 10.1021/ic402954p
关键词
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资金
- Academy of Finland
- Technology Industries of Finland Centennial Foundation
- University of Jyvaskyla
- University of Bordeaux
- Region Aquitaine
- CNRS
A neutral air- and moisture-stable N,N'-chelating radical ligand, 1-phenyl-3-(pyrid-2-yl)benzo[e][1,2,4]triazinyl (1) was synthesized and characterized by electron paramagnetic resonance spectroscopy, X-ray crystallography, and magnetic measurements. Subsequent reaction of 1 with Cu(hfac)(2)center dot 2H(2)O (hfac = hexafluoroacetylacetonate) under ambient conditions afforded the coordination complex Cu(1)(hfac)(2) in which the radical binds to the metal in a bidentate fashion. Magnetic susceptibility data collected from 1.8 to 300 K indicate a strong ferromagnetic metal-radical interaction in the complex and weak antiferromagnetic radical center dot center dot radical interactions between the Cu(1)(hfac)(2) units. Detailed computational investigations support this assignment. Radical 1 is a new addition to the growing library of 1,2,4-triazinyl radicals and the first member of this family of paramagnetic species synthesized specifically for coordination purposes.
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