In:
Chemistry – A European Journal, Wiley, Vol. 28, No. 17 ( 2022-03-22)
Kurzfassung:
Constructing multiple functional geometric frustration magnets is a hot topic in solid state chemistry and material science. Herein, a two‐dimensional (2D) parallel interpenetrating “star” net complex [HDMPDA][Fe 6 ( μ 3 ‐O) 2 ( μ ‐O 2 CH) 15 ] ( 1 ) was obtained successfully with HDMPDA (DMPDA=N, N’‐dimethyl‐1,3‐propanediamine) as charge balancer. The dipole reorientation of the rotator [HDMPDA] + in the complex brings a structure transition which leads dielectric relaxation close to room temperature. Despite strong antiferromagnetic coupling existing between ions in the net, long‐range order temperature T N of the complex is suppressed to 4.2 K by geometric frustration. Interestingly, below T N , a canted antiferromagnetic state, accompanied with slow magnetic relaxation, is detected due to the lack of enough magnetic coupling between 2D layers. Thus, 1 is a particular multifunctional magnetic frustration material containing two different types of relaxations.
Materialart:
Online-Ressource
ISSN:
0947-6539
,
1521-3765
DOI:
10.1002/chem.202104503
Sprache:
Englisch
Verlag:
Wiley
Publikationsdatum:
2022
ZDB Id:
1478547-X