Orthorhombic cerium(III) carbonate hydroxide studied by synchrotron powder X-ray diffraction

IF 0.6 Q4 CRYSTALLOGRAPHY

Acta Crystallographica Section E: Crystallographic Communications Pub Date : 2025-06-01 DOI:10.1107/S2056989025003512

Liam A. V. Nagle-Cocco , Robert T. Bell , Nicholas A. Strange

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Abstract

A synchrotron powder X-ray diffraction study of commercially obtained ‘cerium(III) carbonate hydrate’ indicates that multiple Ce-containing phases coexist, none of which are Ce₂(CO₃)₃. The majority phase is an orthorhombic phase of composition CeCO₃OH.

Cerium(III) carbonate is a precursor material for the synthesis of various Ce-containing compounds. In this work, a synchrotron powder X-ray diffraction study of commercially obtained ‘cerium(III) carbonate hydrate’ indicates that multiple Ce-containing phases are present. The majority phase CeCO₃OH (52.49%_wt) was refined using an orthorhombic Pmcn structure model with a = 5.01019 (2) Å, b = 8.55011 (4) Å and c = 7.31940 (4) Å, which is based on a reported structure for the lanthanoid carbonate mineral ancylite. Additionally, a substantial portion of the precursor material is cubic cerium(IV) oxide (47.12%_wt).

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同步加速器粉末x射线衍射研究了正菱形氢氧化碳酸铈。

碳酸铈是合成各种含铈化合物的前驱体材料。在这项工作中，对商业获得的“碳酸铈水合物”进行同步加速器粉末x射线衍射研究表明，存在多个含ce相。大部分相CeCO3OH （52.49%wt）采用正交菱形Pmcn结构模型进行提纯，其中a = 5.01019 (2) Å， b = 8.55011 (4) Å， c = 7.31940 (4) Å，该模型基于已报道的类镧碳酸盐矿物ancyite的结构。此外，前驱体材料的很大一部分是立方氧化铈（47.12%wt）。

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来源期刊

Acta Crystallographica Section E: Crystallographic Communications Chemistry-Chemistry (all)

CiteScore

1.90

自引率

0.00%

发文量

351

审稿时长

3 weeks

期刊介绍： Acta Crystallographica Section E: Crystallographic Communications is the IUCr''s open-access structural communications journal. It provides a fast, simple and easily accessible publication mechanism for crystal structure determinations of inorganic, metal-organic and organic compounds. The electronic submission, validation, refereeing and publication facilities of the journal ensure rapid and high-quality publication of fully validated structures. The primary article category is Research Communications; these are peer-reviewed articles describing one or more structure determinations with appropriate discussion of the science.

Ortho­rhom­bic cerium(III) carbonate hydroxide studied by synchrotron powder X-ray diffraction

Abstract

Orthorhombic cerium(III) carbonate hydroxide studied by synchrotron powder X-ray diffraction