Additional file 1.

Total electronic energies of the boron structures. Electronic supplementary material Figure S1 shows a fully planar boron-based nanostructure, B₅₀₄H₃₆, which was obtained starting from planar B₁₂H₆ building blocks. Table S1 recollects total energies and Cartesian coordinates of the optimized structures shown in Figures 1 and 2.

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Gonzalez Szwacki and Tymczak Nanoscale Research Letters 2012 7:236   doi:10.1186/1556-276X-7-236