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Title:Ammoniumbis(hydroxylammonium) pentafluoridooxidovanadate(IV) : synthesis and characterisation of a new fluorovanadate
Authors:ID Dojer, Brina (Author)
ID Kristl, Matjaž (Author)
ID Jagličić, Zvonko (Author)
ID Drofenik, Mihael (Author)
ID Meden, Anton (Author)
Files:.pdf Acta_Chimica_Slovenica_2008_Dojer_et_al._Ammoniumbis_(hydroxylammonium)_Pentafluoridooxidovanadate(IV)_Synthesis_and_Characterisation_of.pdf (218,95 KB)
MD5: A5EA7E29674D97E8946D32FF6A05005E
URL http://acta-arhiv.chem-soc.si/55/55-4-834.pdf
Work type:Scientific work (r2)
Typology:1.01 - Original Scientific Article
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Turquoise crystals of a new hydroxylammonium compound with the formula $NH_4(NH_3OH)_2[VOF_5]$ have been synthesized by the reaction of solid $NH_3OHF$ and the aqueous solution of vanadium in HF. The compound crystallizes monoclinic, $P2_1/n$, with cell parameters: a = 10.5658(2) Å, b = 6.6143(1) Å, c = 11.6618(2) Å, β = 96.282(1). Magnetic susceptibility was measured using a SQUID device over a temperature range 2–300 K at magnetic field $10^3 Oe$ giving the result $µ_{eff}$ = 1.65 BM. The thermal decomposition was studied by TG and DSC analysis. $NH_4(NH_3OH)_2[OF_5V]$ decomposes above 354 K in three steps, obtaining $NH_4VOF_3$ after the first step and $V_2O_5$ as the final residue.
Keywords:hydroxylammonium fluorovanadates, x-ray powder diffraction, x-ray structure determination, thermal analysis
Year of publishing:2008
Publication status in journal:Published
Article version:Publisher's version of article
Number of pages:str. 834-840
Numbering:št. 4, Letn. 55
ISSN on article:1318-0207
COBISS.SI-ID:30084101 New window
Publication date in DKUM:17.08.2017
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Record is a part of a journal

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


License:CC BY 4.0, Creative Commons Attribution 4.0 International
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:17.08.2017

Secondary language

Abstract:Z reakcijo med trdnim $NH_3OHF$ in raztopino vanadija v 40% HF smo sintetizirali turkizne kristale nove spojine hidroksilamina s formulo $NH_4(NH_3OH)_2[VOF_5]$. Spojina kristalizira monoklinsko, $P2_1/n$, s parametri osnovne celice: a = 10.5658(2) Å, b = 6.6143(1) Å, c = 11.6618(2) Å, β = 96.282(1). Iz meritev magnetne susceptibilnosti z magnetometrom SQUID v temperaturnem območju 2–300 K pri magnetnem polju $10^3 Oe$ smo izračunali efektivni magnetni moment $µ_{ef}$ = 1.65 BM. Termični razkroj spojine smo spremljali s TG in DSC analizo. $NH_4(NH_3OH)_2[OF_5V]$ nad temperaturo 354 K razpada v treh stopnjah preko vmesnega produkta $NH_4VOF_3$ do končnega preostanka $V_2O_5$.
Keywords:anorganska kemija, strukturna kemija, koordinacijske spojine, sinteza, anorganske sinteze, karakterizacija spojin, rentgenska strukturna določitev, rentgenska difrakcija, termična analiza, magnetizem, magnetna susceptibilnost, spojine vanadija, vanadati(IV), hidroksilamonijevi fluorovanadati, hidroksilamin


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