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Gd13Fe10C13: Indications of Fe–Fe Multiple Bonding Emerging from Chemical Frustration

We report the synthesis and crystal structure of the carbide Gd13Fe10C13. This compound adopts a new structure type that is remarkable for its “H”-shaped C2FeFeC2 units, which have some of the shortest Fe–Fe contacts known. A bonding analysis using DFT-calibrated Hückel calculations hints that Fe–F...

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Published in:Journal of the American Chemical Society 2012-06, Vol.134 (25), p.10361-10364
Main Authors: Hadler, Amelia B, Fredrickson, Daniel C
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Language:English
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Fredrickson, Daniel C
description We report the synthesis and crystal structure of the carbide Gd13Fe10C13. This compound adopts a new structure type that is remarkable for its “H”-shaped C2FeFeC2 units, which have some of the shortest Fe–Fe contacts known. A bonding analysis using DFT-calibrated Hückel calculations hints that Fe–Fe multiple bonding underlies these short distances. Gd13Fe10C13 undergoes ferromagnetic ordering at ∼55 K.
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subjects BONDING
CARBIDES
CRYSTAL STRUCTURE
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
SYNTHESIS
title Gd13Fe10C13: Indications of Fe–Fe Multiple Bonding Emerging from Chemical Frustration
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