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Structural Organization of π Conjugated Highly Luminescent Molecular Material
Abstract : We report on striking evidence for a room temperature structural phase instability in p-hexaphenyl, inducing a nonplanar conformation of the molecules. Solid state proton NMR and single crystal x-ray diffraction allow the analysis of the organization, the individual dynamics and the involved symmetry breaking. The analysis of Raman spectra above and below room temperature reveals a singular behavior suggesting a modification of the overlap between the electronic wave function induced by the non-planarity. These results provide a new basis to answer fundamental issues related to molecular and electronic materials and, in particular, luminescent organic devices.
Cited literature [33 references]
https://hal-univ-tours.archives-ouvertes.fr/hal-01870053
Contributor : Patrice Limelette <>
Submitted on : Friday, September 7, 2018 - 10:25:08 AM
Last modification on : Tuesday, January 28, 2020 - 4:26:18 PM
Document(s) archivé(s) le : Saturday, December 8, 2018 - 1:30:39 PM
Contributor : Patrice Limelette <>
Submitted on : Friday, September 7, 2018 - 10:25:08 AM
Last modification on : Tuesday, January 28, 2020 - 4:26:18 PM
Document(s) archivé(s) le : Saturday, December 8, 2018 - 1:30:39 PM
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