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Crystal structures and comparisons of potassium rare-earth molybdates KRE(MoO₄)₂ (RE = Tb, Dy, Ho, Er, Yb, and Lu).

ABSTRACT: Six potassium rare-earth molybdates KRE(MoO₄)₂ (RE = Tb, Dy, Ho, Er, Yb, and Lu) were synthesized by flux-assisted growth in K₂Mo₃O₁₀. The crystal structures were determined using single-crystal X-ray diffraction data. The synthesized molybdates crystallize with the ortho-rhom-bic Pbcn space group (No. 60). Trendlines for unit-cell parameters were calculated using data from the current study. The unit-cell parameters a and c increase linearly whereas b decreases with larger RE cations, based on crystal radii. The unit-cell volumes increase linearly and the densities decrease linearly with larger RE cations. The average distances between the RE cations and the nearest O atoms increase with larger cations whereas the average distances of Mo-O and K-O do not show specific trends.

SUBMITTER: Chong S

PROVIDER: S-EPMC7784660 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Crystal structures and comparisons of potassium rare-earth molybdates KRE(MoO4)2 (RE = Tb, Dy, Ho, Er, Yb, and Lu).

Chong Saehwa S Perry Samuel S Riley Brian J BJ Nelson Zayne J ZJ

Acta crystallographica. Section E, Crystallographic communications 20201127 Pt 12

Six potassium rare-earth molybdates KRE(MoO4)2 (RE = Tb, Dy, Ho, Er, Yb, and Lu) were synthesized by flux-assisted growth in K2Mo3O10. The crystal structures were determined using single-crystal X-ray diffraction data. The synthesized molybdates crystallize with the ortho-rhom-bic Pbcn space group (No. 60). Trendlines for unit-cell parameters were calculated using data from the current study. The unit-cell parameters ...[more]

PMID: 33520272

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