Nanotrains and self-assembled two-dimensional arrays built from carboranes linked by hydrogen bonding of dipyridones
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- Sasaki, T., Guerrero, J.M., Leonard, A.D. et al. Nano Res. (2008) 1: 412. doi:10.1007/s12274-008-8041-4
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The strong hydrogen bonding ability of 2-pyridones were exploited to build nanotrains on surfaces. Carborane wheels on axles difunctionalized with 2-pyridone hydrogen bonding units were synthesized and displayed spontaneous formation of linear nanotrains by self-assembly on SiO2 or mica surfaces. Imaging using atomic force microscopy confirmed linear formations with lengths up to 5 µm and heights within the range of the molecular height of the carborance-tipped axles.