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Study of the electronic structure of polynuclear cobalt trimethylacetate complexes by Co3s and Co3p X-ray photoelectron spectroscopy
Umeå University, Faculty of Science and Technology, Department of Chemistry.
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2011 (English)In: Russian Journal of Inorganic Chemistry, ISSN 0036-0236, Vol. 56, no 3, 402-408 p.Article in journal (Refereed) Published
Abstract [en]

The electronic structure of mono-, hexa-, and nonanuclear cobalt trimethylacetate complexes was studied by XPS. The Co3s- and Co3p X-ray photoelectron spectra of the complexes were recorded. The Co3p spectrum of bivalent cobalt was calculated in the isolated-ion intermediate-coupling approximation. Spectrum analysis showed that the [Co(N-Phobsqdi)2(eta'-N-Ph-opda)(OOCCMe(3))] complex is a strong-field complex with Co(III) in the diamagnetic state; the [Co(dipy)(2)(OOCCMe(3))(2)], [Co(dipyam)(OOCCMe(3))(2)], and [Co(9)(mu(3)-OH)(6)(mu-OOCCMe(3))(12)(OCMe(2))(4)] are high-spin weak-field Co(II) complexes; and the [Co(6)(mu(4)-O)(2)(OOCCMe(3))(10)(THF)(4)] complex contains both the Co(II) and Co(III) atoms. The energy position of major Co3s- and Co3p spectral maxima were found to be sensitive to the nature of the nearest environment of cobalt atoms. The data correlate well with X-ray crystallographic data.

Place, publisher, year, edition, pages
2011. Vol. 56, no 3, 402-408 p.
National Category
Inorganic Chemistry
URN: urn:nbn:se:umu:diva-104478DOI: 10.1134/S0036023611030120ISI: 000289213100015OAI: diva2:821740
Available from: 2015-06-15 Created: 2015-06-11 Last updated: 2015-06-15Bibliographically approved

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Shchukarev, Andrey V.
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