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Title:Synthesis, crystal structure and magnetic properties of a new hydroxylammonium fluoroferrate
Authors:ID Dojer, Brina (Author)
ID Kristl, Matjaž (Author)
ID Jagličić, Zvonko (Author)
ID Golobič, Amalija (Author)
ID Kasunič, Marta (Author)
ID Drofenik, Mihael (Author)
Files:.pdf Acta_Chimica_Slovenica_2012_Dojer_et_al._Synthesis,_Crystal_Structure_and_Magnetic_Properties_of_a_new_Hydroxylammonium_Fluoroferrate.pdf (198,42 KB)
MD5: B5AE4B5C1191951D8367D0CD0095A1DF
 
URL http://acta-arhiv.chem-soc.si/59/59-4-789.pdf
 
Language:English
Work type:Scientific work (r2)
Typology:1.01 - Original Scientific Article
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:This paper reports on the synthesis of a new hydroxylammonium fluoroferrate, with the formula $(NH_3OH)_3FeF_6$, obtained after dissolving iron powder in hydrofluoric acid and adding solid $NH_3OHF$. This new compound has been characterized by chemical and thermal analysis, single-crystal X-ray diffraction, and magnetic measurements. The title compound crystallizes trigonal, R3c, with cell parameters a = 11.4154(2) Å, c = 11.5720(2) Å, Z = 6. The structure consists of $NH_3OH^+$ cations and isolated $FeF_6^{3–}$ octahedra in which the central ion lies on a threefold axis. The oxygen and nitrogen atoms of the hydroxylammonium cations are donors of hydrogen bonds to fluoride anions, resulting in a network of hydrogen bonds between counterions. The effective magnetic moment $µ_{eff}$ = 5.8 BM was calculated and perfectly matches the expected value of high-spin Fe(III) ions. The thermal decomposition of the compound was studied by TG, DSC, and X-ray powder diffraction.
Keywords:inorganic chemistry, crystallography, coordination compounds, synthesis, crystal structure, characterization of compounds, determination of the structure of compounds, X-ray diffraction, magnetic measurements, thermal analysis, TG, DSC, hydrogen bond, metal complexes, hydroxylammonium fluoromethalatehydroxylammonium, fluoroferrate
Year of publishing:2012
Publication status in journal:Published
Article version:Publisher's version of article
Number of pages:str. 789-794
Numbering:Letn. 59, št. 4
ISSN:1318-0207
UDC:546.726.022.057:543.442.3:543.57
ISSN on article:1318-0207
COBISS.SI-ID:36480005 New window
NUK URN:URN:SI:UM:DK:JL67D6WV
Publication date in DKUM:25.08.2017
Views:1356
Downloads:56
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Record is a part of a journal

Title:Acta Chimica Slovenica
Shortened title:Acta Chim. Slov.
Publisher:Slovensko kemijsko društvo
ISSN:1318-0207
COBISS.SI-ID:14086149 New window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:25.08.2017

Secondary language

Language:Slovenian
Abstract:V prispevku poročamo o sintezi novega hidroksilamonijevega fluorometalata s formulo $(NH_3OH)_3FeF_6$. Spojino smo pripravili z reakcijo med trdnim $NH_3OHF$ in vodno raztopino železa v $HF$. Spojino smo karakterizirali s kemijsko in termično analizo, rentgensko difrakcijo na monokristalu in magnetnimi meritvami. Hidroksilamonijev fluoroferat kristalizira trigonalno, R3c, s parametri osnovne celice a = 11.4154(2) Å, c = 11.5720(2) Å, Z = 6. Strukturo sestavljajo kationi $NH_3OH^+$ in izolirani oktaedri $FeF_6^{3–}$, v katerih centralni atom leži na trištevni osi. Kisikovi in dušikovi atomi v hidroksilamonijevih kationih so donorji vodikovih vezi do fluoridnih anionov, kar povzroči nastanek mreže vodikovih vezi. Izračunani efektivni magnetni moment $µ_{eff}$ = 5.8 BM se odlično ujema s teoretično vrednostjo za visokospinske Fe(III) ione. Termični razkroj spojine smo preučevali s termogravimetrično metodo in rentgensko praškovno analizo.
Keywords:anorganska kemija, kristalografija, koordinacijske spojine, sinteza, kristalna struktura, karakterizacija spojin, določitev strukture spojin, rentgenska difrakcija, magnetne meritve, termična analiza, TG, DSC, vodikova vez, kovinski kompleksi, hidroksilamonijev fluorometalat


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