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Direct Observation of the Relationship betweenMolecular Topology and Bulk Morphology for a π-Conjugated Material.
Seifrid, Martin T; Reddy, G N Manjunatha; Zhou, Cheng; Chmelka, Bradley F; Bazan, Guillermo C.
Affiliation
  • Seifrid MT; Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry , University of California, Santa Barbara , Santa Barbara , California 93106 , United States.
  • Reddy GNM; Department of Chemical Engineering , University of California, Santa Barbara , Santa Barbara , California 93106 , United States.
  • Zhou C; Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry , University of California, Santa Barbara , Santa Barbara , California 93106 , United States.
  • Chmelka BF; Department of Chemical Engineering , University of California, Santa Barbara , Santa Barbara , California 93106 , United States.
  • Bazan GC; Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry , University of California, Santa Barbara , Santa Barbara , California 93106 , United States.
J Am Chem Soc ; 141(13): 5078-5082, 2019 04 03.
Article in En | MEDLINE | ID: mdl-30793597
ABSTRACT
High-performance organic semiconducting materials are reliant upon subtle changes in structure across different length scales. These morphological features control relevant physical properties and ultimately device performance. By combining in situ NMR spectroscopy and theoretical calculations, the conjugated small molecule TT is shown to exhibit distinct temperature-dependent local structural features that are related to macroscopic properties. Specifically, lamellar and melt states are shown to exhibit different molecular topologies associated with planar and twisted conformations of TT, respectively. This topological transformation offers a novel avenue for molecular design and control of solid-state organization.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Organic Chemicals / Small Molecule Libraries Language: En Journal: J Am Chem Soc Year: 2019 Document type: Article Affiliation country: Estados Unidos
Fulltext
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Organic Chemicals / Small Molecule Libraries Language: En Journal: J Am Chem Soc Year: 2019 Document type: Article Affiliation country: Estados Unidos