Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 131, Issue 35, Pages 12558-+Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja906012u
Keywords
-
Categories
Funding
- NSF [CHE-0617063]
Ask authors/readers for more resources
Results of ac magnetic susceptibility measurements performed on the trigonal prismatic complex U(Ph(2)BPz(2))(3) demonstrate the presence of slow magnetic relaxation under zero applied dc field. Analysis of both the temperature and frequency dependence of the ac susceptibility indicate a temperature regime (T > similar to 3 K) where Arrhenius behavior dominates the relaxation processes, leading to a spin relaxation barrier of U-eff = 20 cm(-1). The dc-field dependence of the relaxation time was studied to reveal evidence of quantum tunneling processes occurring at lower temperatures. The results suggest a general strategy for identifying further uranium(III)-based single-molecule magnets by concentrating the ligand-field contributions above and below the equatorial plane of an axially symmetric coordination complex.
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