Rietveld refinement of the ranciéite structure using synchrotron powder diffraction data
Rietveld refinement of the ranciéite structure using synchrotron powder diffraction data is a research paper published in Powder Diffraction (2008). On theSindex it has a DataRank of 0.795. It has been cited 23 times, with 10 citing works in its 1-hop citation network.
Abstract
Rietveld refinement using synchrotron powder X-ray diffraction data of the ranciéite, Ca 0.19 K 0.01 (Mn 4+ 0.91 ◻ 0.09 )O 2 ⋅0.63H 2 O, crystal structure reveals significant differences from that reported previously. The interlayer H 2 O molecules occupy sites halfway between the Mn,O octahedral sheets. The Mn sites in the octahedral sheets have 10% vacancies, and the mean Mn–O distance indicates that all Mn is tetravalent (Mn 4+ ). The interlayer Ca cations are located above and below the Mn vacancies and are octahedrally coordinated to three O 2 atoms in the octahedral sheet and three H 2 O molecules in the interlayer.
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FAIR Checklist
Context only (not used in score)- Has DOI
FAIR checklist signals are shown for context only and do not affect DataRank scoring.
DataRank Breakdown
Base Score Contribution
0.477
From this paper's citation signal
Citation Network Contribution
0.318
From 10 citing papers with measurable signal
Top 1 citer driving the network score
Ranked by citation count — the same ordering the engine uses when summing log1p(Cq) over citers.
- Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenidesActa Crystallographica Section A197663,862 citationsDataRank 1.7
Why this DataRank?
DataRank blends this paper's own citation count with the influence of the papers that cite it. Here, roughly 60% comes from its base citations and 40% from the citation network (10 citing papers contributed measurable signal).
- Base score B(p)
- log1p(citation_count) — grows sub-linearly, so a paper with 1,000 citations is not 10× a paper with 100.
- Network N(p)
- Σ over citers of log1p(Cq) ÷ max(outdegreeq, 1). Being cited by a highly-cited paper with few references counts most.
- Damping factor d = 0.85
- DataRank = (1−d)·B(p) + d·N(p) — the two cards above are each already multiplied by their share.
- Self-citations excluded
- Citers sharing any OpenAlex author ID with this paper are filtered out before the network sum.
Citers are pulled from OpenAlex sorted by cited_by_count:descand capped per paper, so when the cap binds we keep the highest-signal references and the score is reproducible across reruns.
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