Quantitative EPR spectroscopy: Comparison between primary standards and application to MgO-MnO and α-$ Al^{2} $$ O^{3} $-$ Cr^{2} $$ O^{3} $ solid solutions
Abstract To study their reliability as primary standards in the quantitative EPR spectroscopy, a large series of pure paramagnetic compounds with known spin concentrations, whose spectra vary considerably in intensity, shape, structure and overall width are compared. The paramagnetic species examine...
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| Autor*in: |
Cordischi, D. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1999 |
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| Anmerkung: |
© Springer 1999 |
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| Übergeordnetes Werk: |
Enthalten in: Applied magnetic resonance - Springer-Verlag, 1990, 16(1999), 3 vom: März, Seite 427-445 |
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| Übergeordnetes Werk: |
volume:16 ; year:1999 ; number:3 ; month:03 ; pages:427-445 |
| Links: |
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| DOI / URN: |
10.1007/BF03161929 |
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| Katalog-ID: |
OLC2043917064 |
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| 245 | 1 | 0 | |a Quantitative EPR spectroscopy: Comparison between primary standards and application to MgO-MnO and α-$ Al^{2} $$ O^{3} $-$ Cr^{2} $$ O^{3} $ solid solutions |
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| 520 | |a Abstract To study their reliability as primary standards in the quantitative EPR spectroscopy, a large series of pure paramagnetic compounds with known spin concentrations, whose spectra vary considerably in intensity, shape, structure and overall width are compared. The paramagnetic species examined as pure solid compounds and solutions, were free radicals (DPPH and TEMPO), vanadyl and $ Cu^{2+} $ ions (S = 1/2), $ Cr^{3+} $ (S = 3/2) and $ Mn^{2+} $ (5 = 5/2) ions. The quantitative EPR findings suggest that all theS = 1/2 paramagnetic compounds investigated and $ MnSO_{4} $ · $ H_{2} $O (S = 5/2) are reliable primary standards. By contrast, none of the pure $ Cr^{3+} $ compounds proved useful as primary standards because of their large fine-structure terms or high Néel temperature that invalidated the simple Curie law. Application of quantitative EPR in the study of dilute MgO-MnO and α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, focussing on the circumstances making paramagnetic species undetectable, is reported. In MgO-MnO solid solutions of high surface area, detection problems arising from the variation of local site symmetry can be circumvented and almost all $ Mn^{2+} $ are detected only by reducing the surface area. In concentrated α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, magnetic interactions lead to paramagnetic species being undetectable. | ||
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| 700 | 1 | |a Occhiuzzi, M. |4 aut | |
| 700 | 1 | |a Dragone, R. |4 aut | |
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10.1007/BF03161929 doi (DE-627)OLC2043917064 (DE-He213)BF03161929-p DE-627 ger DE-627 rakwb eng 530 620 VZ UA 2242.9 VZ rvk 53.00 bkl 33.00 bkl Cordischi, D. verfasserin aut Quantitative EPR spectroscopy: Comparison between primary standards and application to MgO-MnO and α-$ Al^{2} $$ O^{3} $-$ Cr^{2} $$ O^{3} $ solid solutions 1999 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer 1999 Abstract To study their reliability as primary standards in the quantitative EPR spectroscopy, a large series of pure paramagnetic compounds with known spin concentrations, whose spectra vary considerably in intensity, shape, structure and overall width are compared. The paramagnetic species examined as pure solid compounds and solutions, were free radicals (DPPH and TEMPO), vanadyl and $ Cu^{2+} $ ions (S = 1/2), $ Cr^{3+} $ (S = 3/2) and $ Mn^{2+} $ (5 = 5/2) ions. The quantitative EPR findings suggest that all theS = 1/2 paramagnetic compounds investigated and $ MnSO_{4} $ · $ H_{2} $O (S = 5/2) are reliable primary standards. By contrast, none of the pure $ Cr^{3+} $ compounds proved useful as primary standards because of their large fine-structure terms or high Néel temperature that invalidated the simple Curie law. Application of quantitative EPR in the study of dilute MgO-MnO and α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, focussing on the circumstances making paramagnetic species undetectable, is reported. In MgO-MnO solid solutions of high surface area, detection problems arising from the variation of local site symmetry can be circumvented and almost all $ Mn^{2+} $ are detected only by reducing the surface area. In concentrated α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, magnetic interactions lead to paramagnetic species being undetectable. DPPH Acac Electron Paramagnetic Resonance Spectrum Primary Standard Paramagnetic Species Occhiuzzi, M. aut Dragone, R. aut Enthalten in Applied magnetic resonance Springer-Verlag, 1990 16(1999), 3 vom: März, Seite 427-445 (DE-627)13092427X (DE-600)1054553-0 (DE-576)02803757X 0937-9347 nnns volume:16 year:1999 number:3 month:03 pages:427-445 https://doi.org/10.1007/BF03161929 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_65 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2010 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2057 GBV_ILN_4012 GBV_ILN_4036 GBV_ILN_4116 UA 2242.9 53.00 VZ 33.00 VZ AR 16 1999 3 03 427-445 |
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10.1007/BF03161929 doi (DE-627)OLC2043917064 (DE-He213)BF03161929-p DE-627 ger DE-627 rakwb eng 530 620 VZ UA 2242.9 VZ rvk 53.00 bkl 33.00 bkl Cordischi, D. verfasserin aut Quantitative EPR spectroscopy: Comparison between primary standards and application to MgO-MnO and α-$ Al^{2} $$ O^{3} $-$ Cr^{2} $$ O^{3} $ solid solutions 1999 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer 1999 Abstract To study their reliability as primary standards in the quantitative EPR spectroscopy, a large series of pure paramagnetic compounds with known spin concentrations, whose spectra vary considerably in intensity, shape, structure and overall width are compared. The paramagnetic species examined as pure solid compounds and solutions, were free radicals (DPPH and TEMPO), vanadyl and $ Cu^{2+} $ ions (S = 1/2), $ Cr^{3+} $ (S = 3/2) and $ Mn^{2+} $ (5 = 5/2) ions. The quantitative EPR findings suggest that all theS = 1/2 paramagnetic compounds investigated and $ MnSO_{4} $ · $ H_{2} $O (S = 5/2) are reliable primary standards. By contrast, none of the pure $ Cr^{3+} $ compounds proved useful as primary standards because of their large fine-structure terms or high Néel temperature that invalidated the simple Curie law. Application of quantitative EPR in the study of dilute MgO-MnO and α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, focussing on the circumstances making paramagnetic species undetectable, is reported. In MgO-MnO solid solutions of high surface area, detection problems arising from the variation of local site symmetry can be circumvented and almost all $ Mn^{2+} $ are detected only by reducing the surface area. In concentrated α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, magnetic interactions lead to paramagnetic species being undetectable. DPPH Acac Electron Paramagnetic Resonance Spectrum Primary Standard Paramagnetic Species Occhiuzzi, M. aut Dragone, R. aut Enthalten in Applied magnetic resonance Springer-Verlag, 1990 16(1999), 3 vom: März, Seite 427-445 (DE-627)13092427X (DE-600)1054553-0 (DE-576)02803757X 0937-9347 nnns volume:16 year:1999 number:3 month:03 pages:427-445 https://doi.org/10.1007/BF03161929 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_65 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2010 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2057 GBV_ILN_4012 GBV_ILN_4036 GBV_ILN_4116 UA 2242.9 53.00 VZ 33.00 VZ AR 16 1999 3 03 427-445 |
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10.1007/BF03161929 doi (DE-627)OLC2043917064 (DE-He213)BF03161929-p DE-627 ger DE-627 rakwb eng 530 620 VZ UA 2242.9 VZ rvk 53.00 bkl 33.00 bkl Cordischi, D. verfasserin aut Quantitative EPR spectroscopy: Comparison between primary standards and application to MgO-MnO and α-$ Al^{2} $$ O^{3} $-$ Cr^{2} $$ O^{3} $ solid solutions 1999 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer 1999 Abstract To study their reliability as primary standards in the quantitative EPR spectroscopy, a large series of pure paramagnetic compounds with known spin concentrations, whose spectra vary considerably in intensity, shape, structure and overall width are compared. The paramagnetic species examined as pure solid compounds and solutions, were free radicals (DPPH and TEMPO), vanadyl and $ Cu^{2+} $ ions (S = 1/2), $ Cr^{3+} $ (S = 3/2) and $ Mn^{2+} $ (5 = 5/2) ions. The quantitative EPR findings suggest that all theS = 1/2 paramagnetic compounds investigated and $ MnSO_{4} $ · $ H_{2} $O (S = 5/2) are reliable primary standards. By contrast, none of the pure $ Cr^{3+} $ compounds proved useful as primary standards because of their large fine-structure terms or high Néel temperature that invalidated the simple Curie law. Application of quantitative EPR in the study of dilute MgO-MnO and α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, focussing on the circumstances making paramagnetic species undetectable, is reported. In MgO-MnO solid solutions of high surface area, detection problems arising from the variation of local site symmetry can be circumvented and almost all $ Mn^{2+} $ are detected only by reducing the surface area. In concentrated α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, magnetic interactions lead to paramagnetic species being undetectable. DPPH Acac Electron Paramagnetic Resonance Spectrum Primary Standard Paramagnetic Species Occhiuzzi, M. aut Dragone, R. aut Enthalten in Applied magnetic resonance Springer-Verlag, 1990 16(1999), 3 vom: März, Seite 427-445 (DE-627)13092427X (DE-600)1054553-0 (DE-576)02803757X 0937-9347 nnns volume:16 year:1999 number:3 month:03 pages:427-445 https://doi.org/10.1007/BF03161929 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_65 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2010 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2057 GBV_ILN_4012 GBV_ILN_4036 GBV_ILN_4116 UA 2242.9 53.00 VZ 33.00 VZ AR 16 1999 3 03 427-445 |
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10.1007/BF03161929 doi (DE-627)OLC2043917064 (DE-He213)BF03161929-p DE-627 ger DE-627 rakwb eng 530 620 VZ UA 2242.9 VZ rvk 53.00 bkl 33.00 bkl Cordischi, D. verfasserin aut Quantitative EPR spectroscopy: Comparison between primary standards and application to MgO-MnO and α-$ Al^{2} $$ O^{3} $-$ Cr^{2} $$ O^{3} $ solid solutions 1999 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer 1999 Abstract To study their reliability as primary standards in the quantitative EPR spectroscopy, a large series of pure paramagnetic compounds with known spin concentrations, whose spectra vary considerably in intensity, shape, structure and overall width are compared. The paramagnetic species examined as pure solid compounds and solutions, were free radicals (DPPH and TEMPO), vanadyl and $ Cu^{2+} $ ions (S = 1/2), $ Cr^{3+} $ (S = 3/2) and $ Mn^{2+} $ (5 = 5/2) ions. The quantitative EPR findings suggest that all theS = 1/2 paramagnetic compounds investigated and $ MnSO_{4} $ · $ H_{2} $O (S = 5/2) are reliable primary standards. By contrast, none of the pure $ Cr^{3+} $ compounds proved useful as primary standards because of their large fine-structure terms or high Néel temperature that invalidated the simple Curie law. Application of quantitative EPR in the study of dilute MgO-MnO and α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, focussing on the circumstances making paramagnetic species undetectable, is reported. In MgO-MnO solid solutions of high surface area, detection problems arising from the variation of local site symmetry can be circumvented and almost all $ Mn^{2+} $ are detected only by reducing the surface area. In concentrated α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, magnetic interactions lead to paramagnetic species being undetectable. DPPH Acac Electron Paramagnetic Resonance Spectrum Primary Standard Paramagnetic Species Occhiuzzi, M. aut Dragone, R. aut Enthalten in Applied magnetic resonance Springer-Verlag, 1990 16(1999), 3 vom: März, Seite 427-445 (DE-627)13092427X (DE-600)1054553-0 (DE-576)02803757X 0937-9347 nnns volume:16 year:1999 number:3 month:03 pages:427-445 https://doi.org/10.1007/BF03161929 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_65 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2010 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2057 GBV_ILN_4012 GBV_ILN_4036 GBV_ILN_4116 UA 2242.9 53.00 VZ 33.00 VZ AR 16 1999 3 03 427-445 |
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10.1007/BF03161929 doi (DE-627)OLC2043917064 (DE-He213)BF03161929-p DE-627 ger DE-627 rakwb eng 530 620 VZ UA 2242.9 VZ rvk 53.00 bkl 33.00 bkl Cordischi, D. verfasserin aut Quantitative EPR spectroscopy: Comparison between primary standards and application to MgO-MnO and α-$ Al^{2} $$ O^{3} $-$ Cr^{2} $$ O^{3} $ solid solutions 1999 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer 1999 Abstract To study their reliability as primary standards in the quantitative EPR spectroscopy, a large series of pure paramagnetic compounds with known spin concentrations, whose spectra vary considerably in intensity, shape, structure and overall width are compared. The paramagnetic species examined as pure solid compounds and solutions, were free radicals (DPPH and TEMPO), vanadyl and $ Cu^{2+} $ ions (S = 1/2), $ Cr^{3+} $ (S = 3/2) and $ Mn^{2+} $ (5 = 5/2) ions. The quantitative EPR findings suggest that all theS = 1/2 paramagnetic compounds investigated and $ MnSO_{4} $ · $ H_{2} $O (S = 5/2) are reliable primary standards. By contrast, none of the pure $ Cr^{3+} $ compounds proved useful as primary standards because of their large fine-structure terms or high Néel temperature that invalidated the simple Curie law. Application of quantitative EPR in the study of dilute MgO-MnO and α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, focussing on the circumstances making paramagnetic species undetectable, is reported. In MgO-MnO solid solutions of high surface area, detection problems arising from the variation of local site symmetry can be circumvented and almost all $ Mn^{2+} $ are detected only by reducing the surface area. In concentrated α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, magnetic interactions lead to paramagnetic species being undetectable. DPPH Acac Electron Paramagnetic Resonance Spectrum Primary Standard Paramagnetic Species Occhiuzzi, M. aut Dragone, R. aut Enthalten in Applied magnetic resonance Springer-Verlag, 1990 16(1999), 3 vom: März, Seite 427-445 (DE-627)13092427X (DE-600)1054553-0 (DE-576)02803757X 0937-9347 nnns volume:16 year:1999 number:3 month:03 pages:427-445 https://doi.org/10.1007/BF03161929 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_65 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2010 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2057 GBV_ILN_4012 GBV_ILN_4036 GBV_ILN_4116 UA 2242.9 53.00 VZ 33.00 VZ AR 16 1999 3 03 427-445 |
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Enthalten in Applied magnetic resonance 16(1999), 3 vom: März, Seite 427-445 volume:16 year:1999 number:3 month:03 pages:427-445 |
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Enthalten in Applied magnetic resonance 16(1999), 3 vom: März, Seite 427-445 volume:16 year:1999 number:3 month:03 pages:427-445 |
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Quantitative EPR spectroscopy: Comparison between primary standards and application to MgO-MnO and α-$ Al^{2} $$ O^{3} $-$ Cr^{2} $$ O^{3} $ solid solutions |
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quantitative epr spectroscopy: comparison between primary standards and application to mgo-mno and α-$ al^{2} $$ o^{3} $-$ cr^{2} $$ o^{3} $ solid solutions |
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Quantitative EPR spectroscopy: Comparison between primary standards and application to MgO-MnO and α-$ Al^{2} $$ O^{3} $-$ Cr^{2} $$ O^{3} $ solid solutions |
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Abstract To study their reliability as primary standards in the quantitative EPR spectroscopy, a large series of pure paramagnetic compounds with known spin concentrations, whose spectra vary considerably in intensity, shape, structure and overall width are compared. The paramagnetic species examined as pure solid compounds and solutions, were free radicals (DPPH and TEMPO), vanadyl and $ Cu^{2+} $ ions (S = 1/2), $ Cr^{3+} $ (S = 3/2) and $ Mn^{2+} $ (5 = 5/2) ions. The quantitative EPR findings suggest that all theS = 1/2 paramagnetic compounds investigated and $ MnSO_{4} $ · $ H_{2} $O (S = 5/2) are reliable primary standards. By contrast, none of the pure $ Cr^{3+} $ compounds proved useful as primary standards because of their large fine-structure terms or high Néel temperature that invalidated the simple Curie law. Application of quantitative EPR in the study of dilute MgO-MnO and α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, focussing on the circumstances making paramagnetic species undetectable, is reported. In MgO-MnO solid solutions of high surface area, detection problems arising from the variation of local site symmetry can be circumvented and almost all $ Mn^{2+} $ are detected only by reducing the surface area. In concentrated α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, magnetic interactions lead to paramagnetic species being undetectable. © Springer 1999 |
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Abstract To study their reliability as primary standards in the quantitative EPR spectroscopy, a large series of pure paramagnetic compounds with known spin concentrations, whose spectra vary considerably in intensity, shape, structure and overall width are compared. The paramagnetic species examined as pure solid compounds and solutions, were free radicals (DPPH and TEMPO), vanadyl and $ Cu^{2+} $ ions (S = 1/2), $ Cr^{3+} $ (S = 3/2) and $ Mn^{2+} $ (5 = 5/2) ions. The quantitative EPR findings suggest that all theS = 1/2 paramagnetic compounds investigated and $ MnSO_{4} $ · $ H_{2} $O (S = 5/2) are reliable primary standards. By contrast, none of the pure $ Cr^{3+} $ compounds proved useful as primary standards because of their large fine-structure terms or high Néel temperature that invalidated the simple Curie law. Application of quantitative EPR in the study of dilute MgO-MnO and α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, focussing on the circumstances making paramagnetic species undetectable, is reported. In MgO-MnO solid solutions of high surface area, detection problems arising from the variation of local site symmetry can be circumvented and almost all $ Mn^{2+} $ are detected only by reducing the surface area. In concentrated α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, magnetic interactions lead to paramagnetic species being undetectable. © Springer 1999 |
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Abstract To study their reliability as primary standards in the quantitative EPR spectroscopy, a large series of pure paramagnetic compounds with known spin concentrations, whose spectra vary considerably in intensity, shape, structure and overall width are compared. The paramagnetic species examined as pure solid compounds and solutions, were free radicals (DPPH and TEMPO), vanadyl and $ Cu^{2+} $ ions (S = 1/2), $ Cr^{3+} $ (S = 3/2) and $ Mn^{2+} $ (5 = 5/2) ions. The quantitative EPR findings suggest that all theS = 1/2 paramagnetic compounds investigated and $ MnSO_{4} $ · $ H_{2} $O (S = 5/2) are reliable primary standards. By contrast, none of the pure $ Cr^{3+} $ compounds proved useful as primary standards because of their large fine-structure terms or high Néel temperature that invalidated the simple Curie law. Application of quantitative EPR in the study of dilute MgO-MnO and α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, focussing on the circumstances making paramagnetic species undetectable, is reported. In MgO-MnO solid solutions of high surface area, detection problems arising from the variation of local site symmetry can be circumvented and almost all $ Mn^{2+} $ are detected only by reducing the surface area. In concentrated α-$ Al_{2} $$ O_{3} $-$ Cr_{2} $$ O_{3} $ solid solutions, magnetic interactions lead to paramagnetic species being undetectable. © Springer 1999 |
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