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Journal Article

Crystal Structures of AlCr2 and MoSi2: Same Structure Type vs. Different Bonding Pattern

MPS-Authors
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Milosavljević,  Milica D.
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Burkhardt,  Ulrich
Ulrich Burkhardt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Moll,  Philip J. W.
Physics of Microstructured Quantum Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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König,  Markus
Markus König, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Borrmann,  Horst
Horst Borrmann, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Grin,  Yuri
Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Milosavljević, M. D., Burkhardt, U., Moll, P. J. W., König, M., Borrmann, H., & Grin, Y. (2021). Crystal Structures of AlCr2 and MoSi2: Same Structure Type vs. Different Bonding Pattern. Chemistry – A European Journal, 27(57), 14209-14216. doi:10.1002/chem.202100817.


Cite as: https://hdl.handle.net/21.11116/0000-0008-E4CA-3
Abstract
Abstract In a joint effort utilizing modified sample preparation, microscopy, X-ray diffraction and micro-fabrication, it became possible to prepare single crystals of the ?hidden? phase AlCr2. High-resolution X-ray diffraction analysis is described in detail for two crystals with the similar overall composition, but different degree of disorder, which seems to be the main cause for the differing unit cell parameters. Chemical bonding analysis of AlCr2 in comparison to prototypical MoSi2 shows pronounced differences reflecting the interchange of main group element vs. transition metal as majority component.