RT Journal Article
T1 Random Tiling and Topological Defects in a Two-Dimensional Molecular Network
A1 Blunt, Matthew
A1 Russell, James
A1 Giménez López, María del Carmen
A1 Garrahan, Juan
A1 Xiang, Lin
A1 Schröder, Martin
A1 Champness, Neil
A1 Beton, Peter
K1 Hydrogen bondings
K1 Carboxylic acid
K1 Molecular network
AB A molecular network that exhibits critical correlations in the spatial order that is characteristic of a random,entropically stabilized, rhombus tiling is described. Specifically, we report a random tiling formed in a twodimensionalmolecular network of p-terphenyl-3,5,3′,5′-tetracarboxylic acid adsorbed on graphite. Thenetwork is stabilized by hexagonal junctions of three, four, five, or six molecules and may be mapped ontoa rhombus tiling in which an ordered array of vertices is embedded within a nonperiodic framework withspatial fluctuations in a local order characteristic of an entropically stabilized phase. We identified atopological defect that can propagate through the network, giving rise to a local reordering of molecular tilesand thus to transitions between quasi-degenerate local minima of a complex energy landscape. We drawparallels between the molecular tiling and dynamically arrested systems, such as glasses
PB American Association for the Advancement of Science
SN 0036-8075
YR 2008
FD 2008
LK http://hdl.handle.net/10347/32173
UL http://hdl.handle.net/10347/32173
LA eng
NO Matthew O. Blunt et al. ,Random Tiling and Topological Defects in a Two-Dimensional Molecular Network.Science322,1077-1081(2008).DOI:10.1126/science.1163338
NO This is the Accepted Manuscript of the following article: Blunt, M.O., Russell, J.C., Gimenez Lopez, M.C., Garrahan, J.P., Lin, X., Schróder, M., Champness, N.R., Beton, P.H., Science, 2008, DOI:10.1126/science.116333
DS Minerva
RD 23 abr 2026