Boron rings containing planar octacoordinate iron and cobalt

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The boron rings containing planar octacoordinate transition metals, D8h FeB82-, CoB8- and CoB83+, C2v FeB8, D2h CoB8+ and CoB8, are optimized with all real vibrational frequencies at the B3LYP/6-311+G* level of the theory. The D8h FeB82- and CoB8- isomers
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