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Organic high-spin systems: synthesis, electrochemical and ETSF studies of a series of tetraaryl-meta-phenylenediamines

Authors
Journal
Journal of Physics and Chemistry of Solids
0022-3697
Publisher
Elsevier
Publication Date
Volume
65
Issue
4
Identifiers
DOI: 10.1016/j.jpcs.2003.11.008
Disciplines
  • Chemistry
  • Design
  • Physics

Abstract

Abstract A series of N, N, N′, N′-tetraaryl-1,3-phenylenediamines with various substituents at the para-position of peripheral rings were designed and synthesized. Electrochemical and novel electron transfer stopped-flow methods were invoked for characterizing the absorption spectra of the corresponding short-lived mono- and dicationic states. Both thermodynamic and kinetic stabilization are required to extend the lifetime of the dicationic states. Useful molecular design rules for stabilizing the dicationic states of N, N, N′, N′-tetraaryl-1,3-phenylenediamines as precursors for positively charged high-spin systems were elucidated.

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