{
  "abstract": "The title compound, rubidium cobalt iron bis­(phosphate), was synthesized by the solid-state method under atmospheric conditions. This phosphate crystallizes with trigonal symmetry in space group P3m1 and all atoms lie on special crystallographic positions. In this structure, the CoIIO4 tetra­hedra alternate with one of the two types of PO4 tetra­hedra, sharing the vertices of their bases and extending along the a- and b-axis directions to form a first tetra­hedral layer, lying parallel to the (001) plane. The same alternation is observed between the FeIIIO4 tetra­hedra and the other PO4 tetra­hedra, leading to the formation of a second layer also lying parallel to the (001) plane. In the first layer, all tetra­hedra are oriented downwards, while in the second, they are oriented upwards with respect to the c axis. The inter­connection between these two layers is ensured by the sharing of the vertices of the CoO4 and PO4 tetra­hedra, as well as the vertex of the FeO4 tetra­hedra, with those of the other PO4 tetra­hedra. The stacking of these two layers leads to the formation of [CoFeP2O8]−∞ double layers lying parallel to the (001) plane and creates hexa­gonal tunnels running parallel to the c-axis direction. The Rb+ cations are located at the inter­section of the tunnels with the inter­layer space, thus forming a plane lying perpendicular to the c-axis direction, sandwiched between the double layers. In this structure, each rubidium atom exhibits a coordination number of twelve, whereas in the similar structure of KMgFe(PO4)2, which has monoclinic symmetry, the potassium cation is surrounded by eight oxygen atoms.",
  "abstract_shown": true,
  "affiliations": [
    "Laboratoire de Chimie Appliquée des Matériaux Centre des Sciences des Matériaux Faculty of Science Mohammed V University in Rabat Avenue Ibn Batouta BP 1014 Rabat Morocco",
    "Laboratoire de Chimie des Matériaux Inorganiques Faculté des Sciences Département de Chimie Université des Sciences et Techniques de Masuku, BP 943 Franceville Gabon"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 8,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Adam Bouraima"
    },
    {
      "affs": [
        0
      ],
      "name": "Said Ouaatta"
    },
    {
      "affs": [
        0
      ],
      "name": "Jamal Khmiyas",
      "orcid": "0000-0002-7542-1817"
    },
    {
      "affs": [
        1
      ],
      "name": "Jean jacques Anguilè"
    },
    {
      "affs": [
        1
      ],
      "name": "Thomas Makani"
    },
    {
      "affs": [
        0
      ],
      "name": "Abderrazzak Assani",
      "orcid": "0000-0002-4737-2966"
    },
    {
      "affs": [
        0
      ],
      "name": "Mohamed Saadi",
      "orcid": "0000-0003-2655-0230"
    },
    {
      "affs": [
        0
      ],
      "name": "Lahcen El Ammari",
      "orcid": "0000-0001-7980-974X"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8hjn5ndspq5dj.bib",
  "cited_by": 0,
  "doi": "10.1107/s2056989026007632",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13741331/",
  "id": "8hjn5ndspq5dj",
  "issns": [
    "2056-9890"
  ],
  "landing_url": "https://doi.org/10.1107/s2056989026007632",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Research Communications"
    ],
    [
      "openalex",
      "2504|Crystal Structures and Properties"
    ]
  ],
  "openalex": "W7218513574",
  "pdf_url": "https://journals.iucr.org/e/issues/2026/11/00/oo2018/oo2018.pdf",
  "pmcid": "PMC13741331",
  "pmid": "42997444",
  "published": "2026-10-02",
  "publisher": "International Union of Crystallography",
  "ris": "https://research.draconitic.com/paper/8hjn5ndspq5dj.ris",
  "sources": [
    {
      "first_seen": "2026-11-10T12:22:25Z",
      "native_id": "PMC13741331",
      "source": "pmc",
      "url": "https://doi.org/10.1107/s2056989026007632"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2504|Crystal Structures and Properties",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Lamellar crystal structure of the trigonal mixed-metal phosphate RbCoFe(PO4)2",
  "title_text": "Lamellar crystal structure of the trigonal mixed-metal phosphate RbCoFe(PO4)2",
  "type": "peer-reviewed",
  "updated_at": "2026-11-10T12:22:25Z",
  "url": "https://research.draconitic.com/paper/8hjn5ndspq5dj",
  "venue": "Acta Crystallographica Section E: Crystallographic Communications",
  "versions": []
}