, Volume 1, Issue 5, pp 412-419,
Open Access This content is freely available online to anyone, anywhere at any time.
Date: 05 Mar 2010

Nanotrains and self-assembled two-dimensional arrays built from carboranes linked by hydrogen bonding of dipyridones


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.