Metal-nitroxyl interactions. 8. Exchange interactions in a spin-labeled copper complex (3-(N-(3-2,2,5,5-tetramethylpyrroline-1-oxyl)amido)-4,9-dimethyl-5,8- diazadodeca-4,8-diene-2,11-dione)copper(II)

Daniel L DuBois, G. R. Eaton, S. S. Eaton

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Abstract

Resolved electron-electron coupling is observed in the room temperature solution EPR spectra of the spin-labeled copper complex (3-(N-(3-2,2,5,5-tetramethylpyrroline-1-oxyl)amido)-4,9-dimethyl-5,8- diazadodeca-4,8-diene-2,11-dione)-copper(II). Values of the coupling constant at room temperature vary with solvent (toluene, CH2Cl2,THF, 1:1 THF-CH2Cl2, CHCl3, pyridine, Me2SO, 1:1 toluene-acetone, and 10:1 toluene-THF), ranging from 475 G (0.0454 cm-1) in THF to 520 G (0.0496 cm-1) in Me2SO. The coupling constant is also temperature dependent with values changing from 525 G (0.0501 cm-1) at -20°C to 472 G (0.0451 cm-1) at 119°C in toluene solution.

Original languageEnglish
Pages (from-to)2624-2627
Number of pages4
JournalJournal of the American Chemical Society
Volume101
Issue number10
Publication statusPublished - 1979

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Exchange interactions
Toluene
Copper
Metals
Temperature
Electrons
Acetone
Pyridine
Paramagnetic resonance
nitroxyl

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

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title = "Metal-nitroxyl interactions. 8. Exchange interactions in a spin-labeled copper complex (3-(N-(3-2,2,5,5-tetramethylpyrroline-1-oxyl)amido)-4,9-dimethyl-5,8- diazadodeca-4,8-diene-2,11-dione)copper(II)",
abstract = "Resolved electron-electron coupling is observed in the room temperature solution EPR spectra of the spin-labeled copper complex (3-(N-(3-2,2,5,5-tetramethylpyrroline-1-oxyl)amido)-4,9-dimethyl-5,8- diazadodeca-4,8-diene-2,11-dione)-copper(II). Values of the coupling constant at room temperature vary with solvent (toluene, CH2Cl2,THF, 1:1 THF-CH2Cl2, CHCl3, pyridine, Me2SO, 1:1 toluene-acetone, and 10:1 toluene-THF), ranging from 475 G (0.0454 cm-1) in THF to 520 G (0.0496 cm-1) in Me2SO. The coupling constant is also temperature dependent with values changing from 525 G (0.0501 cm-1) at -20°C to 472 G (0.0451 cm-1) at 119°C in toluene solution.",
author = "DuBois, {Daniel L} and Eaton, {G. R.} and Eaton, {S. S.}",
year = "1979",
language = "English",
volume = "101",
pages = "2624--2627",
journal = "Journal of the American Chemical Society",
issn = "0002-7863",
publisher = "American Chemical Society",
number = "10",

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TY - JOUR

T1 - Metal-nitroxyl interactions. 8. Exchange interactions in a spin-labeled copper complex (3-(N-(3-2,2,5,5-tetramethylpyrroline-1-oxyl)amido)-4,9-dimethyl-5,8- diazadodeca-4,8-diene-2,11-dione)copper(II)

AU - DuBois, Daniel L

AU - Eaton, G. R.

AU - Eaton, S. S.

PY - 1979

Y1 - 1979

N2 - Resolved electron-electron coupling is observed in the room temperature solution EPR spectra of the spin-labeled copper complex (3-(N-(3-2,2,5,5-tetramethylpyrroline-1-oxyl)amido)-4,9-dimethyl-5,8- diazadodeca-4,8-diene-2,11-dione)-copper(II). Values of the coupling constant at room temperature vary with solvent (toluene, CH2Cl2,THF, 1:1 THF-CH2Cl2, CHCl3, pyridine, Me2SO, 1:1 toluene-acetone, and 10:1 toluene-THF), ranging from 475 G (0.0454 cm-1) in THF to 520 G (0.0496 cm-1) in Me2SO. The coupling constant is also temperature dependent with values changing from 525 G (0.0501 cm-1) at -20°C to 472 G (0.0451 cm-1) at 119°C in toluene solution.

AB - Resolved electron-electron coupling is observed in the room temperature solution EPR spectra of the spin-labeled copper complex (3-(N-(3-2,2,5,5-tetramethylpyrroline-1-oxyl)amido)-4,9-dimethyl-5,8- diazadodeca-4,8-diene-2,11-dione)-copper(II). Values of the coupling constant at room temperature vary with solvent (toluene, CH2Cl2,THF, 1:1 THF-CH2Cl2, CHCl3, pyridine, Me2SO, 1:1 toluene-acetone, and 10:1 toluene-THF), ranging from 475 G (0.0454 cm-1) in THF to 520 G (0.0496 cm-1) in Me2SO. The coupling constant is also temperature dependent with values changing from 525 G (0.0501 cm-1) at -20°C to 472 G (0.0451 cm-1) at 119°C in toluene solution.

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M3 - Article

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