{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,12,5]],"date-time":"2024-12-05T15:40:20Z","timestamp":1733413220720,"version":"3.30.1"},"reference-count":34,"publisher":"International Union of Crystallography (IUCr)","issue":"12","license":[{"start":{"date-parts":[[2024,11,25]],"date-time":"2024-11-25T00:00:00Z","timestamp":1732492800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/journals.iucr.org\/services\/copyrightpolicy.html"},{"start":{"date-parts":[[2024,11,25]],"date-time":"2024-11-25T00:00:00Z","timestamp":1732492800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.iucr.org\/services\/copyrightpolicy.html#TDM"}],"content-domain":{"domain":["iucr.org","wiley.com","iucrj.org"],"crossmark-restriction":true},"short-container-title":["Acta Crystallogr C Struct Chem","Acta Crystallogr C","Acta Crystallogr C Cryst Struct Commun","Acta Cryst C","Acta Cryst C Struct Chem","Acta Cryst Sect C","Acta Cryst Sect C Struct Chem","Acta Crystallogr Sect C","Acta Crystallogr Sect C Struct Chem","Acta Crystallogr Sect C Cryst Struct Commun"],"accepted":{"date-parts":[[2024,11,18]]},"published-print":{"date-parts":[[2024,12,1]]},"abstract":"<jats:p>The synthesis, single-crystal X-ray structure determination and thermal analysis are reported for a novel heteronuclear oxalate compound synthesized from a mixture of Fe and Na salts, oxalic acid and <jats:italic>N<\/jats:italic>,<jats:italic>N<\/jats:italic>-dimethylformamide (DMF) in aqueous solution. The new metallooxalate compound was obtained and identified as a dimethylammonium tris(oxalato)ferrate(III), namely, poly[[bis(dimethylammonium) [tri-\u03bc-oxalato-sodium(I)iron(III)]]\u2013dimethylamine\u2013water (3\/1\/1)], [NH<jats:sub>2<\/jats:sub>(CH<jats:sub>3<\/jats:sub>)<jats:sub>2<\/jats:sub>]<jats:sub>2<\/jats:sub>[NaFe(C<jats:sub>2<\/jats:sub>O<jats:sub>4<\/jats:sub>)<jats:sub>3<\/jats:sub>]\u00b70.33NH(CH<jats:sub>3<\/jats:sub>)<jats:sub>2<\/jats:sub>\u00b70.33H<jats:sub>2<\/jats:sub>O, which crystallizes in the orthorhombic noncentrosymmetric space group <jats:italic>C<\/jats:italic>222<jats:sub>1<\/jats:sub>. In this novel structure, each Fe atom is hexacoordinated by three non-equivalent bidentate oxalate ligands, while the four Na atoms adopt different coordination numbers, <jats:italic>i.e.<\/jats:italic> 6, 7 and 8. The structure consists of bimetallic anionic A layers, {[NaFe(C<jats:sub>2<\/jats:sub>O<jats:sub>4<\/jats:sub>)<jats:sub>3<\/jats:sub>]<jats:sup>2\u2212<\/jats:sup>}<jats:sub>\n                     <jats:italic>n<\/jats:italic>\n                  <\/jats:sub>, displaying a layered structure with infinitely linked Fe<jats:sub>2<\/jats:sub>Na<jats:sub>2<\/jats:sub> tetramers on the <jats:italic>ab<\/jats:italic> plane. Two kinds of bimetallic parallel layers (A1 and A2) are present alternately and are found to be staggered, while only the A2 layer is crossed by a twofold axis parallel to the <jats:italic>a<\/jats:italic> axis through two Na atoms. The [NH<jats:sub>2<\/jats:sub>(CH<jats:sub>3<\/jats:sub>)<jats:sub>2<\/jats:sub>]<jats:sup>+<\/jats:sup> (HDMA) cations occupy the voids between the anionic layers, while the free molecules, <jats:italic>i.e.<\/jats:italic> NH(CH<jats:sub>3<\/jats:sub>)<jats:sub>2<\/jats:sub> (DMA) and H<jats:sub>2<\/jats:sub>O, are located between two different anionic layers. In addition to ionic bonds, the stability of the structure is ensured by hydrogen-bond interactions involving the oxalate ligands and the nitrogenous and water molecules. The layered structure appears to be different in the family of oxalate-bridged Na<jats:sup>I<\/jats:sup>\u2013Fe<jats:sup>III<\/jats:sup> compounds. It is in agreement with the predicted 2D or layered structure of bimetallic complexes containing anionic tris(oxalato)metallate(III) with the [<jats:italic>XR<\/jats:italic>\n                  <jats:sub>4<\/jats:sub>]<jats:sup>+<\/jats:sup> counter-ion template (<jats:italic>X<\/jats:italic>\u00a0= N, P or S, and <jats:italic>R<\/jats:italic>\u00a0= alkyl group or H). The thermal decomposition of the compound shows the final residual product to be NaFeO<jats:sub>2<\/jats:sub>.<\/jats:p>","DOI":"10.1107\/s2053229624011185","type":"journal-article","created":{"date-parts":[[2024,11,25]],"date-time":"2024-11-25T15:06:52Z","timestamp":1732547212000},"page":"798-805","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":0,"title":["A novel layered structure of the heterometallic oxalate compound [NH<sub>2<\/sub>(CH<sub>3<\/sub>)<sub>2<\/sub>]<sub>2<\/sub>[NaFe(C<sub>2<\/sub>O<sub>4<\/sub>)<sub>3<\/sub>]\u00b70.33NH(CH<sub>3<\/sub>)<sub>2<\/sub>\u00b70.33H<sub>2<\/sub>O: synthesis, crystal structure and thermal decomposition"],"prefix":"10.1107","volume":"80","author":[{"ORCID":"https:\/\/orcid.org\/0009-0006-2646-0437","authenticated-orcid":true,"given":"Hamza","family":"Kherfi","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9221-4177","authenticated-orcid":true,"given":"Mohamed Al Amine","family":"Benhacine","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Malika","family":"Hamadene","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"329","published-online":{"date-parts":[[2024,11,25]]},"reference":[{"key":"eq3016_bb1","doi-asserted-by":"crossref","first-page":"4633","DOI":"10.1021\/ic010363f","volume":"40","author":"Andr\u00e9s","year":"2001","journal-title":"Inorg. 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