Fluoroferrates with (dabcoH2)2+ or (dabcoH)+ Cations1. Issue 7 (13th February 2014)

• Record Type: Journal Article
• Authors: Darmograi, Ganna; Jouffret, Laurent; Hémon‐Ribaud, Annie; Leblanc, Marc; Dujardin, Gilles; Maisonneuve, Vincent; Lhoste, Jerome
• Is Part Of: Zeitschrift für anorganische und allgemeine Chemie. Volume 640:Issue 7(2014)
• Page Start: 1385
• Page End: 1391
• Publication Date: 2014-02-13
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry -- Periodicals; 540
• DOI: 10.1002/zaac.201300656
• Languages: English
• ISSNs: 0044-2313

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Four new hybrid fluoroferrates synthesized with 1, 4‐diazabicyclooctane (<italic>dabco</italic>) are discussed. They were obtained through the use of conventional solvothermal synthesis in Teflon vessels to explore the composition space diagram of the (Fe<sup>2+</sup>, Fe<sup>3+</sup>)‐<italic>dabco</italic>‐HF<sub>aq</sub>. chemical system with ethanol or dimethylformamide as solvent. These <italic>Class I</italic> hybrid fluorides exhibit isolated hydrated and/or fluorinated iron entities associated to mono or diprotonated amines according to the synthesis conditions. Their structures were determined from single crystal diffraction: (<italic>dabco</italic>H<sub>2</sub>)[Fe<sup>III</sup><sub>2</sub>F<sub>8</sub>(H<sub>2</sub>O)<sub>2</sub>] (<bold>I</bold>), triclinic, space group <italic>P</italic><inline-formula><alternatives><tex-math notation="tex"><![CDATA[$\bar{1}$]]></tex-math><inline-graphic xlink:href="ark:/27927/pghmj32rc1" mimetype="image" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></alternatives></inline-formula>, <italic>Z</italic> = 2, <italic>a</italic> = 7.1657(2) Å, <italic>b</italic> = 7.6031(2) Å, <italic>c</italic> = 13.1497(3) Å, <italic>α</italic> = 73.631(1)°, <italic>β</italic> = 76.210(1)°, <italic>γ</italic> = 84.286(1)°, <italic>V</italic> = 667.1(1) Å<sup>3</sup>, <italic>R</italic> = 0.0299; (<italic>dabco</italic>H<sub>2</sub>)<sub>2</sub>[Fe<sup>III</sup><sub>2</sub>F<sub>10</sub>]<bold>·</bold>2H<sub>2</sub>O (<bold>II</bold>), orthorhombic, space group <italic>Pbca</italic>, <italic>Z</italic> = 4, <italic>a</italic> = 12.9801(7) Å, <italic>b</italic> = 11.4624(6) Å, <italic>c</italic> = 13.8641(7) Å, <italic>V</italic> = 2062.7(2) Å<sup>3</sup>, <italic>R</italic> = 0.0425; (<italic>dabco</italic>H)<sub>4</sub>[Fe<sup>III</sup><sub>2</sub>F<sub>10</sub>]<bold>·</bold>10H<sub>2</sub>O (<bold>III</bold>), triclinic, space group <italic>P</italic><inline-formula><alternatives><tex-math notation="tex"><![CDATA[$\bar{1}$]]></tex-math><inline-graphic xlink:href="ark:/27927/pghmj32rbh" mimetype="image" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></alternatives></inline-formula>, <italic>Z</italic> = 1, <italic>a</italic> = 8.921(3) Å, <italic>b</italic> = 9.468(4) Å, <italic>c</italic> = 13.452(4) Å, <italic>α</italic> = 76.87(2)°, <italic>β</italic> = 74.62(2)°, <italic>γ</italic> = 74.86(2)°, <italic>V</italic> = 1042.2(6) Å<sup>3</sup>, <italic>R</italic> = 0.0549; (<italic>dabco</italic>H)[(Fe<sup>II</sup>(H<sub>2</sub>O)<sub>6</sub>)(Fe<sup>III</sup>F<sub>6</sub>)] (<bold>IV</bold>), trigonal, space group <italic>P</italic>31<italic>c</italic>, <italic>Z</italic> = 2, <italic>a</italic> = 9.2866(2) Å, <italic>c</italic> = 10.2401(2) Å, <italic>V</italic> = 764.8(3) Å<sup>3</sup>, <italic>R</italic> = 0.0252. The paper focuses on structural descriptions, environment of <italic>dabco</italic> cations or iron species, and hydrogen bonding modes in the light of literature examples.</p> </abstract>