Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 140, Issue 11, Pages 3846-3849Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b13699
Keywords
-
Categories
Funding
- NSERC of Canada
- Engineering and Physical Sciences Research Council [EP/K039687/1] Funding Source: researchfish
- EPSRC [EP/K039687/1] Funding Source: UKRI
Ask authors/readers for more resources
Crystals of the heterocyclic radical naphtho1,3,2-dithiazolyl NDTA display magnetic bistability with a well-defined hysteretic phase transition at T-c down arrow = 128(2) K and T-c up arrow = 188(2) K. The magnetic signature arises from a radical/dimer interconversion involving one of the two independent pi-radicals in the PI unit cell. Variable temperature X-ray crystallography has established that while all the radicals in HT-NDTA serve as paramagnetic (S = 1/2) centers, half of the radicals in LT-NDTA form closed-shell N-N sigma-bonded dimers (S = 0) and half retain their S = 1/2 spin state. The wide window of bistability (60 K) may be attributed to the large structural changes that accompany the phase transition.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available