The crystal structure of WAl<sub>5</sub>

Adam, J.; Rich, Jordi

doi:10.1107/s0365110x55001060

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Thermodynamic Aspects and Chemical Bonding1

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2006

2007

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Cited by 30 publications

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“…Prevention of like neighbours facilitates efficient heteroatomic bonding. AuCu 3 (cP4), Al 5 W (hP12), and, for example, Cu 7 Pt (cF32) [19] fulfil the principle. At a first glance the aggregation of Al atoms appears to be favoured by attractive Al-Al interaction.…”

Section: Thermodynamic Aspects and Chemical Bondingmentioning

confidence: 94%

Iodine‐Promoted Synthesis of Structurally Ordered AlPd₅

Wannek

Harbrecht

2007

Zeitschrift anorg allge chemie

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The boundary conditions and scope of catalytically stimulated synthesis of ordered intermetallics from solid metals are elucidated. The method is applied to the preparation of AlPd5. Its crystal structure has been determined by means of x‐ray powder diffractometry. AlPd5 forms a structurally unmatched ordered variant of the cubic close‐packing of spheres. Above 900 K AlPd5 is merged in the fcc boundary solid solution AlxPd1−x by a first order phase transition. The particular arrangement of the minority component Al and the associated structural distortions are analysed with regard to chemical bonding against the background of the enthalpy‐driven disorder‐order transition.

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Section: Thermodynamic Aspects and Chemical Bondingmentioning

confidence: 94%