The self-assembly behavior of five star-shaped pyridyl-functionalized 1,3,5-triethynylbenzenes was studied at the interface between an organic solvent and the basal plane of graphite by scanning tunneling microscopy. The mono- and bipyridine derivatives self-assemble in closely packed 2D crystals, whereas the derivative with the more bulky terpyridines crystallizes with porous packing. DFT calculations of a monopyridine derivative on graphene, support the proposed molecular model. The calculations also reveal the formation of hydrogen bonds between the nitrogen atoms and a hydrogen atom of the neighboring central unit, as a small nonzero tunneling current was calculated within this region. The title compounds provide a versatile model system to investigate the role of multivalent steric interactions and hydrogen bonding in molecular monolayers.
Trawny, D., Schlexer, P., Steenbergen, K., Rabe, J., Paulus, B., & Reissig, H. (2015). Dense or porous packing? Two-dimensional self-assembly of star-shaped mono-, bi-, and terpyridine derivatives. CHEMPHYSCHEM, 16(5), 949-953.
Citazione: | Trawny, D., Schlexer, P., Steenbergen, K., Rabe, J., Paulus, B., & Reissig, H. (2015). Dense or porous packing? Two-dimensional self-assembly of star-shaped mono-, bi-, and terpyridine derivatives. CHEMPHYSCHEM, 16(5), 949-953. |
Tipo: | Articolo in rivista - Articolo scientifico |
Carattere della pubblicazione: | Scientifica |
Presenza di un coautore afferente ad Istituzioni straniere: | Si |
Titolo: | Dense or porous packing? Two-dimensional self-assembly of star-shaped mono-, bi-, and terpyridine derivatives |
Autori: | Trawny, D; Schlexer, P; Steenbergen, K; Rabe, J; Paulus, B; Reissig, H |
Autori: | SCHLEXER, PHILOMENA DENIZ (Secondo) |
Data di pubblicazione: | 2015 |
Lingua: | English |
Rivista: | CHEMPHYSCHEM |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1002/cphc.201402900 |
Appare nelle tipologie: | 01 - Articolo su rivista |
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