Ferromagnetic spin coupling through the 3,4′-biphenyl moiety in Arylamine Oligomers-experimental and computational study

Vincent Maurel, Lukasz Skorka, Nicolas Christophe Orlando Onofrio, Ewa Szewczyk, David Djurado, Lionel Dubois, Jean Marie Mouesca, Irena Kulszewicz-Bajer

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

This report describes the study of a dimer d2+ and a linear trimer t3+ of amminium radical cations coupled by 3,4′-biphenyl spin coupling units. The synthesis of the parent diamine and triamine and their optical and electrochemical properties obtained by UV-visible and cyclic voltammetry are presented. The chemical doping of the parent diamine d and triamine t was performed quantitatively to obtain samples containing the corresponding dimer d2+ and trimer t3+ in almost pure high-spin states as evidenced by pulsed EPR nutation spectroscopy. The J coupling constants of the corresponding S = 1 and S = 3/2 spin states were measured (J/k = 135 K) and compared quantitatively to DFT calculations.
Original languageEnglish
Pages (from-to)7657-7667
Number of pages11
JournalJournal of Physical Chemistry B
Volume118
Issue number27
DOIs
Publication statusPublished - 10 Jul 2014
Externally publishedYes

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Physical and Theoretical Chemistry
  • Materials Chemistry

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