{"doi":"10.1107/s2056989017007411","title":"Crystal structure of calcium dinickel(II) iron(III) tris(orthophosphate): CaNi<sub>2</sub>Fe(PO<sub>4</sub>)<sub>3</sub>","abstract":"<jats:p>The title compound, CaNi<jats:sub>2</jats:sub>Fe(PO<jats:sub>4</jats:sub>)<jats:sub>3</jats:sub>, was synthesized by solid-state reactions. Its structure is closely related to that of α-CrPO<jats:sub>4</jats:sub> in the space group <jats:italic>Imma</jats:italic>. Except for two O atoms in general positions, all atoms are located in special positions. The three-dimensional framework is built up from two types of sheets extending parallel to (100). The first sheet is made up from two edge-sharing [NiO<jats:sub>6</jats:sub>] octahedra, leading to the formation of [Ni<jats:sub>2</jats:sub>O<jats:sub>10</jats:sub>] double octahedra that are connected to two PO<jats:sub>4</jats:sub> tetrahedra through a common edge and corners. The second sheet results from rows of corner-sharing [FeO<jats:sub>6</jats:sub>] octahedra and PO<jats:sub>4</jats:sub> tetrahedra forming an infinite linear chain. These layers are linked together through common corners of PO<jats:sub>4</jats:sub> tetrahedra and [FeO<jats:sub>6</jats:sub>] octahedra, resulting in an open three-dimensional framework that delimits two types of channels parallel to [100] and [010] in which the eightfold-coordinated Ca<jats:sup>II</jats:sup> cations are located.</jats:p>","journal":"Acta Crystallographica Section E Crystallographic Communications","year":2017,"id":588533,"datarank":0.3710649337734267,"base_score":1.9459101490553132,"endowment":1.9459101490553132,"self_citation_contribution":0.29188652235829704,"citation_network_contribution":0.07917841141512967,"self_endowment_contribution":0.29188652235829704,"citer_contribution":0.07917841141512967,"corpus_percentile":null,"corpus_rank":null,"citation_count":6,"citer_count":4,"citers_with_citation_signal":3,"citers_with_endowment":3,"datacite_reuse_total":1,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1505633,"name":"Abderrazzak Assani","orcid":null,"position":1,"is_corresponding":false},{"id":1505634,"name":"Mohamed Saadi","orcid":null,"position":2,"is_corresponding":false},{"id":1505635,"name":"Lahcen El Ammari","orcid":"0000-0001-7980-974X","position":3,"is_corresponding":false},{"id":1505632,"name":"Said Ouaatta","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"Crystal structure of calcium dinickel(II) iron(III) tris(orthophosphate): CaNi<sub>2</sub>Fe(PO<sub>4</sub>)<sub>3</sub>","abstract":"<jats:p>The title compound, CaNi<jats:sub>2</jats:sub>Fe(PO<jats:sub>4</jats:sub>)<jats:sub>3</jats:sub>, was synthesized by solid-state reactions. Its structure is closely related to that of α-CrPO<jats:sub>4</jats:sub> in the space group <jats:italic>Imma</jats:italic>. Except for two O atoms in general positions, all atoms are located in special positions. The three-dimensional framework is built up from two types of sheets extending parallel to (100). The first sheet is made up from two edge-sharing [NiO<jats:sub>6</jats:sub>] octahedra, leading to the formation of [Ni<jats:sub>2</jats:sub>O<jats:sub>10</jats:sub>] double octahedra that are connected to two PO<jats:sub>4</jats:sub> tetrahedra through a common edge and corners. The second sheet results from rows of corner-sharing [FeO<jats:sub>6</jats:sub>] octahedra and PO<jats:sub>4</jats:sub> tetrahedra forming an infinite linear chain. These layers are linked together through common corners of PO<jats:sub>4</jats:sub> tetrahedra and [FeO<jats:sub>6</jats:sub>] octahedra, resulting in an open three-dimensional framework that delimits two types of channels parallel to [100] and [010] in which the eightfold-coordinated Ca<jats:sup>II</jats:sup> cations are located.</jats:p>","is_dataset_classified":null,"base_score":1.9459101490553132,"endowment":1.9459101490553132,"datacite_reuse_total":1,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"28638653","pmcid":"PMC5458318","openalex_id":"https://openalex.org/W2617334398","authors":[],"funders":[{"funder_name":"Mohammed V University, Rabat, Morocco","grant_id":"","title":null}],"total_grants":1,"fwci":0.0,"citation_percentile":0.04462833,"influential_citations":0,"citation_trend":[{"year":2021,"count":3},{"year":2023,"count":2},{"year":2025,"count":1}],"oa_status":"gold","license":"cc-by","oa_locations":[{"url":"http://journals.iucr.org/e/issues/2017/06/00/wm5390/wm5390.pdf","host_type":"journal"},{"url":"http://journals.iucr.org/e/issues/2017/06/00/wm5390/wm5390.pdf","host_type":"GOLD"},{"url":"http://journals.iucr.org/e/issues/2017/06/00/wm5390/wm5390.pdf","host_type":"publisher"},{"url":"https://journals.iucr.org/e/issues/2017/06/00/wm5390/wm5390.pdf","host_type":"publisher"},{"url":"https://doi.org/10.1107/s2056989017007411","host_type":"journal"},{"url":"https://pubmed.ncbi.nlm.nih.gov/28638653","host_type":"repository"},{"url":"https://doaj.org/article/35716dfeaa3e48d8be3e1bccd25746c0","host_type":"repository"},{"url":"https://www.ncbi.nlm.nih.gov/pmc/articles/5458318","host_type":"repository"},{"url":"http://doi.org/10.1107/S2056989017007411","host_type":"repository"},{"url":"https://europepmc.org/articles/PMC5458318","host_type":"Europe_PMC"},{"url":"https://europepmc.org/articles/PMC5458318?pdf=render","host_type":"Europe_PMC"}],"fields_of_study":["Crystal Structures and Properties","Chemical Synthesis and Characterization","Metal-Organic Frameworks: Synthesis and Applications","Medicine","Chemistry","Materials Science"],"mesh_terms":[],"keywords":["Octahedron","Tetrahedron","Crystallography","Chemistry","Crystal structure","Tris","Group (periodic table)","Ion","Solid-state Reactions","Transition Metal Phosphate","Cani2fe(po4)3","Α-crpo4 Structure Type"],"sdg_mappings":[],"linked_datasets":[{"doi":"10.5517/ccdc.csd.cc1p2441","title":"CSD 1551182: Experimental Crystal Structure Determination","publisher":"FIZ Karlsruhe - Leibniz Institute for Information Infrastructure","resource_type":"Dataset"}],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-07-21T13:23:14.915966Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}