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Ordering, flexibility and frustration in arrays of porphyrin nanorings.
Summerfield, Alex; Baldoni, Matteo; Kondratuk, Dmitry V; Anderson, Harry L; Whitelam, Stephen; Garrahan, Juan P; Besley, Elena; Beton, Peter H.
Afiliación
  • Summerfield A; School of Physics and Astronomy, University of Nottingham, Nottingham, NG7 2RD, UK.
  • Baldoni M; School of Chemistry, University of Nottingham, Nottingham, NG7 2RD, UK.
  • Kondratuk DV; CNR-ISMN Bologna, Via Piero Gobetti 101, 40129, Bologna, Italy.
  • Anderson HL; Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK.
  • Whitelam S; Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK.
  • Garrahan JP; Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA.
  • Besley E; School of Physics and Astronomy, University of Nottingham, Nottingham, NG7 2RD, UK.
  • Beton PH; School of Chemistry, University of Nottingham, Nottingham, NG7 2RD, UK.
Nat Commun ; 10(1): 2932, 2019 Jul 03.
Article en En | MEDLINE | ID: mdl-31270343
The regular packing of atoms, molecules and nanoparticles provides the basis for the understanding of structural order within condensed phases of matter. Typically the constituent particles are considered to be rigid with a fixed shape. Here we show, through a combined experimental and numerical study of the adsorption of cyclic porphyrin polymers, nanorings, on a graphite surface, that flexible molecules can exhibit a rich and complex packing behaviour. Depending on the number of porphyrin sub-units within the nanoring we observe either a highly ordered hexagonal phase or frustrated packing driven by directional interactions which for some arrangements is combined with the internal deformation of the cyclic polymer. Frustration and deformation occur in arrays of polymers with ten sub-units since close packing and co-alignment of neighbouring groups cannot be simultaneously realised for nanorings with this internal symmetry.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2019 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2019 Tipo del documento: Article Pais de publicación: Reino Unido