Detailed electronic structure of a high-spin cobalt(ii) complex determined from NMR and THz-EPR spectroscopy

Here we report a combined use of THz-EPR and paramagnetic NMR spectroscopy for obtaining a detailed electronic structure of a high-spin cobalt(ii) complex.

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1,3-Alternate calix[4]arene nitronyl nitroxide tetraradical and diradical: synthesis, X-ray crystallography, paramagnetic NMR spectroscopy, EPR spectroscopy, and magnetic studies

Tetrahedron ◽

10.1016/j.tet.2007.07.051 ◽

2007 ◽

Vol 63 (44) ◽

pp. 10731-10742 ◽

Cited By ~ 25

Author(s):

Andrzej Rajca ◽

Maren Pink ◽

Sumit Mukherjee ◽

Suchada Rajca ◽

Kausik Das

Keyword(s):

Nmr Spectroscopy ◽

Epr Spectroscopy ◽

Paramagnetic Nmr ◽

Nitronyl Nitroxide ◽

Magnetic Studies ◽

X Ray ◽

X Ray Crystallography

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Electronic Structure of a Stable Phenalenyl Radical as Studied by ESR/ENDOR, Paramagnetic NMR Spectroscopy and SQUID Measurements

Molecular Crystals and Liquid Crystals Science and Technology Section A Molecular Crystals and Liquid Crystals ◽

10.1080/10587259908023302 ◽

1999 ◽

Vol 334 (1) ◽

pp. 49-58 ◽

Cited By ~ 18

Author(s):

Kozo Fukui ◽

Kazunobu Sato ◽

Daisuke Shiomi ◽

Takeji Takui ◽

Koichi Itoh ◽

...

Keyword(s):

Electronic Structure ◽

Nmr Spectroscopy ◽

Paramagnetic Nmr

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Unravelling of a [High Spin – Low Spin] ↔ [Low Spin – High Spin] Equilibrium in Spin‐Crossover Iron(II) Dinuclear Helicates Using Paramagnetic NMR Spectroscopy

Angewandte Chemie International Edition ◽

10.1002/anie.202110310 ◽

2021 ◽

Author(s):

Dmitry Yu Aleshin ◽

Rosa Diego ◽

Leoni Barrios ◽

Yulia V Nelyubina ◽

Guillem Aromi ◽

...

Keyword(s):

Nmr Spectroscopy ◽

High Spin ◽

Spin Crossover ◽

Paramagnetic Nmr

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Unravelling of a [High Spin – Low Spin] ↔ [Low Spin – High Spin] Equilibrium in Spin‐Crossover Iron(II) Dinuclear Helicates Using Paramagnetic NMR Spectroscopy

Angewandte Chemie ◽

10.1002/ange.202110310 ◽

2021 ◽

Author(s):

Dmitry Yu Aleshin ◽

Rosa Diego ◽

Leoni Barrios ◽

Yulia V Nelyubina ◽

Guillem Aromi ◽

...

Keyword(s):

Nmr Spectroscopy ◽

High Spin ◽

Spin Crossover ◽

Paramagnetic Nmr

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Frontispiz: Unravelling of a [High Spin—Low Spin] ↔ [Low Spin—High Spin] Equilibrium in Spin‐Crossover Iron(II) Dinuclear Helicates Using Paramagnetic NMR Spectroscopy

Angewandte Chemie ◽

10.1002/ange.202280361 ◽

2022 ◽

Vol 134 (3) ◽

Author(s):

Dmitry Yu. Aleshin ◽

Rosa Diego ◽

Leoní A. Barrios ◽

Yulia V. Nelyubina ◽

Guillem Aromí ◽

...

Keyword(s):

Nmr Spectroscopy ◽

High Spin ◽

Spin Crossover ◽

Paramagnetic Nmr

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Frontispiece: Unravelling of a [High Spin—Low Spin] ↔ [Low Spin—High Spin] Equilibrium in Spin‐Crossover Iron(II) Dinuclear Helicates Using Paramagnetic NMR Spectroscopy

Angewandte Chemie International Edition ◽

10.1002/anie.202280361 ◽

2022 ◽

Vol 61 (3) ◽

Author(s):

Dmitry Yu. Aleshin ◽

Rosa Diego ◽

Leoní A. Barrios ◽

Yulia V. Nelyubina ◽

Guillem Aromí ◽

...

Keyword(s):

Nmr Spectroscopy ◽

High Spin ◽

Spin Crossover ◽

Paramagnetic Nmr

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1,3-Alternate Calix[4]arene Nitronyl Nitroxide Tetraradical and Diradical: Synthesis, X-Ray Crystallography, Paramagnetic NMR Spectroscopy, EPR Spectroscopy, and Magnetic Studies.

ChemInform ◽

10.1002/chin.200749048 ◽

2007 ◽

Vol 38 (49) ◽

Author(s):

Andrzej Rajca ◽

Maren Pink ◽

Sumit Mukherjee ◽

Suchada Rajca ◽

Kausik Das

Keyword(s):

Nmr Spectroscopy ◽

Epr Spectroscopy ◽

Paramagnetic Nmr ◽

Nitronyl Nitroxide ◽

Magnetic Studies ◽

X Ray ◽

X Ray Crystallography

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Paramagnetic NMR Spectroscopy as a Tool for Studying the Electronic Structures of Lanthanide and Transition Metal Complexes

INEOS OPEN ◽

10.32931/io1922r ◽

2020 ◽

Vol 2 (5) ◽

pp. 153-162

Author(s):

A. A. Pavlov ◽

Keyword(s):

Nmr Spectroscopy ◽

Transition Metal ◽

Metal Complexes ◽

Transition Metal Complexes ◽

Electronic Structures ◽

Paramagnetic Nmr

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Faculty Opinions recommendation of Small-molecule binding sites on proteins established by paramagnetic NMR spectroscopy.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.717990808.793474035 ◽

2013 ◽

Author(s):

Antonio Rosato

Keyword(s):

Nmr Spectroscopy ◽

Small Molecule ◽

Binding Sites ◽

Paramagnetic Nmr

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Properties of electrochemically generated primary cationradicals of phenyl- and 2-(4-tolyl)-1,3,4,7-tetramethylisoindoles

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19801669 ◽

1980 ◽

Vol 45 (6) ◽

pp. 1669-1676 ◽

Cited By ~ 3

Author(s):

Pavel Kubáček

Keyword(s):

Electrochemical Oxidation ◽

Spin Polarization ◽

High Spin ◽

Epr Spectroscopy ◽

Half Life ◽

Electrochemical Behaviour ◽

Epr Spectra ◽

Electrochemical Generation ◽

Splitting Constant ◽

Reduced Temperature

The first step of electrochemical oxidation of 2-phenyl- and 2-(4-tolyl)-1,3,4,7-tetramethylisoindoles in anhydrous acetonitrile produces relatively stable cationradicals which have been studied by means of EPR spectroscopy using the method of internal electrochemical generation of radicals under reduced temperature. The same electrochemical behaviour of the both studied derivatives and identical EPR spectra of their cationradicals can be explained within the Huckel MO method. The largest contribution to the magnitude of splitting constant of nitrogen nucleus is due to π-σ-spin polarization of C-N bonds caused by high spin abundance of pz-AO of carbon atoms. Half-life of decomposition of the studied cationradicals is 4 min at -30°C.

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