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.
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}} |