“Magic” Surface Clustering of Borazines Driven by Repulsive Intermolecular Forces

S. Kervyn, N. Kalashnyk, M. Riello, B. Moreton, J. Tasseroul, J. Wouters, T. S. Jones, A. De Vita, G. Costantini, D. Bonifazi,
Angew. Chem., Int. Ed. 2013, 52, 7410-7414
DOI: 10.1002/anie.201300948


It’s a kind of magic: Hydroxy pentaaryl borazine molecules self‐assemble into small clusters (see structure) on Cu(111) surfaces, whereas with symmetric hexaaryl borazine molecules large islands are obtained. Simulations indicate that the observed “magic” cluster sizes result from long‐range repulsive Coulomb forces arising from the deprotonation of the B-OH groups of the hydroxy pentaaryl borazine.

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