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231223s2005 xx ||||| 00| ||eng c |
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Teutloff, Christian
|e verfasserin
|4 aut
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|a High-field EPR investigations of Mn(III)Mn(IV) and Mn(II)Mn(III) states of dimanganese catalase and related model systems
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|c 2005
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 22.12.2005
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a Copyright 2005 John Wiley & Sons, Ltd
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|a Multi-frequency EPR experiments at 9, 34 and 94 GHz are reported on the antiferromagnetically coupled mixed valence Mn(II)Mn(III) complex of manganese catalase and on several dinuclear manganese model systems. They are compared with similar experiments obtained earlier for the Mn(III)Mn(IV) states. It is demonstrated how accurate information on the G- and 55Mn hyperfine tensors can be derived from this approach. Furthermore, the effect of oxidation state, planarity of the manganese-oxygen core and the type of ligands bridging the manganese ions on the magnetic resonance parameters and the related electronic structure is investigated. 'Broken-symmetry' density functional calculations on two Mn(III)Mn(IV) complexes, including the superoxidized state of the catalase, are presented. The agreement between calculated and experimental EPR parameters and complex geometries is remarkably good. Implications of these results for the structure and function of the dimanganese catalase are discussed
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Ligands
|2 NLM
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|a Protein Subunits
|2 NLM
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|a Manganese
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|a 42Z2K6ZL8P
|2 NLM
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|a Catalase
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|a EC 1.11.1.6
|2 NLM
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| 700 |
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|a Schäfer, Kai-Oliver
|e verfasserin
|4 aut
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|a Sinnecker, Sebastian
|e verfasserin
|4 aut
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| 700 |
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|a Barynin, Vladimir
|e verfasserin
|4 aut
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|a Bittl, Robert
|e verfasserin
|4 aut
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|a Wieghardt, Karl
|e verfasserin
|4 aut
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|a Lendzian, Friedhelm
|e verfasserin
|4 aut
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| 700 |
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|a Lubitz, Wolfgang
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Magnetic resonance in chemistry : MRC
|d 1985
|g 43 Spec no.(2005) vom: 15. Nov., Seite S51-64
|w (DE-627)NLM098179667
|x 1097-458X
|7 nnns
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| 773 |
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|g volume:43 Spec no.
|g year:2005
|g day:15
|g month:11
|g pages:S51-64
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|d 43 Spec no.
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|h S51-64
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