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Comprehensive Studies of Magnetic Transitions and Spin–Phonon Couplings in the Tetrahedral Cobalt Complex Co(AsPh ₃ ) ₂ I ₂

https://doi.org/10.1021/acs.inorgchem.2c02604

Moseley, Duncan H.; Liu, Zhiming; Bone, Alexandria N.; Stavretis, Shelby E.; Singh, Saurabh Kumar; Atanasov, Mihail; Lu, Zhengguang; Ozerov, Mykhaylo; Thirunavukkuarasu, Komalavalli; Cheng, Yongqiang; et al (October 2022, Inorganic Chemistry)

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Strong Electronic and Magnetic Coupling in M ₄ (M = Ni, Cu) Clusters via Direct Orbital Interactions between Low-Coordinate Metal Centers

https://doi.org/10.1021/jacs.0c08460

Chakarawet, Khetpakorn; Atanasov, Mihail; Marbey, Jonathan; Bunting, Philip C.; Neese, Frank; Hill, Stephen; Long, Jeffrey R. (November 2020, Journal of the American Chemical Society)
null (Ed.)
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A linear cobalt(II) complex with maximal orbital angular momentum from a non-Aufbau ground state

https://doi.org/10.1126/science.aat7319

Bunting, Philip C.; Atanasov, Mihail; Damgaard-Møller, Emil; Perfetti, Mauro; Crassee, Iris; Orlita, Milan; Overgaard, Jacob; van Slageren, Joris; Neese, Frank; Long, Jeffrey R. (December 2018, Science)
null (Ed.)
Orbital angular momentum is a prerequisite for magnetic anisotropy, although in transition metal complexes it is typically quenched by the ligand field. By reducing the basicity of the carbon donor atoms in a pair of alkyl ligands, we synthesized a cobalt(II) dialkyl complex, Co(C(SiMe 2 ONaph) 3 ) 2 (where Me is methyl and Naph is a naphthyl group), wherein the ligand field is sufficiently weak that interelectron repulsion and spin-orbit coupling play a dominant role in determining the electronic ground state. Assignment of a non-Aufbau (d x 2 –y 2 , d xy ) 3 (d xz , d yz ) 3 (d z 2 ) 1 electron configuration is supported by dc magnetic susceptibility data, experimental charge density maps, and ab initio calculations. Variable-field far-infrared spectroscopy and ac magnetic susceptibility measurements further reveal slow magnetic relaxation via a 450–wave number magnetic excited state.
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Probing Magnetic Excitations in Co ^II Single-Molecule Magnets by Inelastic Neutron Scattering: Probing Magnetic Excitations in Co ^II Single-Molecule Magnets by Inelastic Neutron Scattering

https://doi.org/10.1002/ejic.201801088

Stavretis, Shelby E.; Cheng, Yongqiang; Daemen, Luke L.; Brown, Craig M.; Moseley, Duncan H.; Bill, Eckhard; Atanasov, Mihail; Ramirez-Cuesta, Anibal J.; Neese, Frank; Xue, Zi-Ling (February 2019, European Journal of Inorganic Chemistry)

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Spin–phonon couplings in transition metal complexes with slow magnetic relaxation

https://doi.org/10.1038/s41467-018-04896-0

Moseley, Duncan H.; Stavretis, Shelby E.; Thirunavukkuarasu, Komalavalli; Ozerov, Mykhaylo; Cheng, Yongqiang; Daemen, Luke L.; Ludwig, Jonathan; Lu, Zhengguang; Smirnov, Dmitry; Brown, Craig M.; et al (December 2018, Nature Communications)

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