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Title:Synthesis and characterisation of hydroxylammonium fluorochromate
Authors:ID Kristl, Matjaž (Author)
ID Drofenik, Mihael (Author)
ID Golič, Ljubo (Author)
ID Golobič, Amalija (Author)
Files:.pdf Acta_Chimica_Slovenica_2003_Kristl_et_al._Synthesis_and_characterisation_of_hydroxylammonium_fluorochromate.pdf (206,45 KB)
MD5: B0200B56A77FDB4F41DD9A8AB7424B26
PID: 20.500.12556/dkum/ecc3f8c5-d8e7-49fb-b300-6ed6424c9dd8
 
URL http://acta-arhiv.chem-soc.si/50/50-3-431.pdf
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Reactions in the system $Cr – NH_3OHF – HF – H_2O$ were investigated. Green crystals of a new compound with the formula $(NH_3OH)_3CrF_6$ have been isolated from the water solution and characterized by chemical analysis. The compound crystallizes as triclinic, P-1, with cell parameters: a = 6.5461(2) Å, b = 6.9347(2) Å, c = 9.4072(3) Å, α = 86.772(1)°, β = 83.804(1)°, γ = 70.283(1)°. The effective magnetic moment, $µ_{eff}$ = 3.82 BM, was calculated from magnetic susceptibility measurements in the temperature range 80-290 K. The thermal decomposition of the compound was studied by TG and DSC analysis. $(NH_3OH)_3CrF_6$ decomposes above 125 °C in three steps and the residue has been identified by X-ray powder diffraction as $α – Cr_2O_3$.
Keywords:inorganic chemistry, structural chemistry, crystalline structure, coordination compounds, synthesis, inorganic reactions, thermal decomposition, characterization of compounds, TG, DSC, X-ray diffraction, chromium complexes, hydroxylammonium fluoro chromates, crystals
Publication status:Published
Publication version:Version of Record
Year of publishing:2003
Number of pages:str. 431-440
Numbering:Letn. 50, št. 3
PID:20.500.12556/DKUM-67642 New window
ISSN:1318-0207
UDC:546.76.022.057:543.422.3:548.73
ISSN on article:1318-0207
COBISS.SI-ID:25335557 New window
NUK URN:URN:SI:UM:DK:8TXXKQBT
Publication date in DKUM:25.08.2017
Views:1893
Downloads:118
Metadata:XML DC-XML DC-RDF
Categories:Misc.
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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
Title:Sinteza in karakterizacija hidroksilamonijevega fluorokromata
Abstract:Raziskovali smo reakcije v sistemu $Cr – NH_3OHF – HF – H_2O$. Iz vodne raztopine smo izločili zelene kristale nove spojine in s kemijsko analizo določili formulo $(NH_3OH)_3CrF_6$. Spojina kristalizira triklinsko, P-1, s parametri osnovne celice: a = 6.5461(2) Å, b = 6.9347(2) Å, c = 9.4072(3) Å, α = 86.772(1)°, β = 83.804(1)°, γ = 70.283(1)°. Iz meritev magnetne susceptibilnosti v območju 80-290 K smo izračunali efektivni magnetni moment, $µ_{ef}$ = 3.82 BM. S termogravimetričnimi in diferencialno termičnimi meritvami smo spremljali termični razkroj spojine. $(NH_3OH)_3CrF_6$ nad temperaturo 125 °C razpada v treh stopnjah, pri čemer smo končni preostanek identificirali z rentgenskimi praškovnimi meritvami kot $α – Cr_2O_3$.
Keywords:anorganska kemija, strukturna kemija, kristalna struktura, koordinacijske spojine, sinteza, anorganske reakcije, termični razkroj, karakterizacija spojin, TG, DSC, rentgenska difrakcija, kromovi kompleksi, hidroksilamonijevi fluorokromati, kristali


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