Self-Assembly, Dynamics, and Phase Transformation Kinetics of Donor−Acceptor Substituted Perylene Derivatives

The role of alkyl chain substitution on the phase formation and core dynamics is studied in a series of diphenylamine functionalized perylenemonoimides, by X-ray scattering, calorimetry and site-specific solid-state NMR techniques

Nikos Tasios

2010

Scholarcy highlights

  • The role of alkyl chain substitution on the phase formation and core dynamics is studied in a series of diphenylamine functionalized perylenemonoimides, by X-ray scattering, calorimetry and site-specific solid-state NMR techniques
  • The strong dipole associated with the donor−acceptor character of the molecules allow an investigation of the dynamics with dielectric spectroscopy
  • The self-assembly revealed an ordered phase only in PMIs with branched alkyl chains. This phase comprises a helical stacking of molecules with a molecular twist angle of 60°
  • The core dynamics are frozen as revealed by the value of the dynamic order parameters and the reduced strength of dipolar relaxation
  • Within the isotropic phase the core dynamics display strong temperature dependence with rates that depend on the number of methylene units in the alkyl chains
  • Information about how to use the RightsLink permission system can be found at http://pubs.acs.org/page/copyright/permissions.html

Need more features? Save interactive summary cards to your Scholarcy Library.