A Trigonal Prismatic Cobalt(II) Complex as a Single Molecule Magnet with a Reduced Contribution from Quantum Tunneling. Issue 8 (5th April 2019)

• Record Type: Journal Article
• Authors: Pavlov, Alexander A.; Aleshin, Dmitry Y.; Savkina, Svetlana A.; Belov, Alexander S.; Efimov, Nikolay N.; Nehrkorn, Joscha; Ozerov, Mykhaylo; Voloshin, Yan Z.; Nelyubina, Yulia V.; Novikov, Valentin V.
• Is Part Of: Chemphyschem. Volume 20:Issue 8(2019)
• Page Start: 1001
• Page End: 1005
• Publication Date: 2019-04-05
• Subjects: cage compounds -- high-spin cobalt(II) complexes -- paramagnetic NMR spectroscopy -- single molecule magnets -- THz-EPR spectroscopy; Chemistry, Physical and theoretical -- Periodicals; 541.05
• DOI: 10.1002/cphc.201900219
• Languages: English
• ISSNs: 1439-4235

Abstract

Abstract: Herein, we report a new trigonal prismatic cobalt(II) complex that behaves as a single molecule magnet. The obtained zero‐field splitting, which is also directly accessed by THz‐EPR spectroscopy (−102.5 cm −1 ), results in a large magnetization reversal barrier U of 205 cm −1 . Its effective value, however, is much lower (101 cm −1 ), even though there is practically no contribution from quantum tunneling to magnetization relaxation. Abstract : Molecular magnetism : A cobalt(II) acetylmethylimidazole‐oximate clathrochelate behaves as a single molecule magnet according to THz‐EPR spectroscopy, magnetometry, and NMR spectroscopy