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The structure and switchable dielectric properties of a dabco complex with chromium chloride
Ist Teil von
Dalton transactions : an international journal of inorganic chemistry, 2020-08, Vol.49 (3), p.1394-141
Ort / Verlag
Cambridge: Royal Society of Chemistry
Erscheinungsjahr
2020
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
We report a metal-organic material of the following formula [
Dabco
H
2
2+
]·CrCl
3
(H
2
O)
3
·2(Cl
−
) (
Dabco
H
2
2+
= C
6
H
14
N
2
2+
, diprotonated 1,4-diazabicyclo[2.2.2]octanium). This compound exhibits a dielectric anomaly, which is attributed to the rotatory fluctuation of the
Dabco
molecule. The complementary results of single-crystal X-ray diffraction, DSC, dielectric, NMR and Raman spectroscopy provide information about the general mechanisms of the phase transition, which results from the ordering of the
Dabco
H
2
2+
molecules. The reversibility of dielectric switching with no observable attenuation of the dielectric signal during multiple cycling is observed. The dielectric switching characteristic of the crystal makes it an interesting material for potential application in smart devices.
We report a metal-organic material of the following formula [
Dabco
H
2
2+
]·CrCl
3
(H
2
O)
3
·2(Cl
−
) (
Dabco
H
2
2+
= C
6
H
14
N
2
2+
, diprotonated 1,4-diazabicyclo[2.2.2]octanium).