Abstract

Antiferromagnetic ordering based on intermolecular London dispersion interactions in amphiphilic TEMPO ammonium salts.
EXNER, Jessica; EUSTERWIEMANN, Steffen; JANKA, Oliver; DOERENKAMP, Carsten; MASSOLLE, Anja; NIEHAUS, Oliver; DANILIUC, Constantin G.; PÖTTGEN, Rainer; NEUGEBAUER, Johannes; STUDER, Armido; ECKERT, Hellmut.
Abstract: Antiferromagnetic coupling in TEMPO-based radicals can be enhanced via self-assembly through London dispersion interactions in amphiphilic solids. The synthesis, magnetic characterization, and three crystal structures of the solid radical ion salts (R-DMAT-n)X with various counterions X and alkyl chain lengths n are reported. Magnetic susceptibility and absolute EPR signal intensity measurements show singlet-triplet transitions in a number of cases, which is discussed in relation to the crystal structures. Antiferromagnetic ordering effects are sensitive to both the length of the alkyl chain and the counter anion.
Physical Chemistry Chemical Physics
v. 20, n. 46, p. 28979-28983 - Ano: 2018
Fator de Impacto: 3,906
http://dx.doi.org/10.1039/c8cp05837g
    @article={002919279,author = {EXNER, Jessica; EUSTERWIEMANN, Steffen; JANKA, Oliver; DOERENKAMP, Carsten; MASSOLLE, Anja; NIEHAUS, Oliver; DANILIUC, Constantin G.; PÖTTGEN, Rainer; NEUGEBAUER, Johannes; STUDER, Armido; ECKERT, Hellmut.},title={Antiferromagnetic ordering based on intermolecular London dispersion interactions in amphiphilic TEMPO ammonium salts},journal={Physical Chemistry Chemical Physics},note={v. 20, n. 46, p. 28979-28983},year={2018}}

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