Journal article
Rapid and exothermic solid-state synthesis of metal oxyhalides and their solid solutions via energetic metathesis reactions
Journal of solid state chemistry, Vol.180(10), pp.2916-2925
2007
DOI: 10.1016/j.jssc.2007.08.005
Abstract
Rapid solid-state metathesis reaction chemistry has been extended to the production of layered metal oxyhalide systems. This article describes the successful synthesis of crystalline BiO
X (
X=Cl, I), and lanthanide oxychlorides (
LnOCl,
Ln=La, Sm, Gd) from metal trihalides and Na
2O
2 in seconds. These known materials contain halide double layers separating
M–O layers. Powder X-ray diffraction results on the metathesis metal oxyhalide products agree with prior literature reports. The morphological and compositional properties of the metal oxyhalide products are described. The rapid production of well-mixed paramagnetic Gd
x
Sm
1−
x
OCl solid-solution materials was achieved using physical mixtures of SmCl
3 and GdCl
3 precursors reacted with Na
2O
2. The room-temperature magnetic properties of these materials with varying compositions are also described. As expected, magnetism, unit cell parameters, and M–O vibrational bands are all dependent on metal composition in the solid-solution products and vary in an approximately linear Vegard's law fashion.
Very rapid, filament-initiated metathesis reactions between two solids, metal trihalides and Na
2O
2, lead to crystalline metal oxyhalides in seconds. All products crystallize in the PbFCl structure (BiOCl shown). In addition to single metal
MOCl (Bi, La, Sm, Gd) and BiOI systems, solid-solution Gd
x
Sm
1−
x
OCl materials are also rapidly accessible using this reactive precursor strategy.
Details
- Title: Subtitle
- Rapid and exothermic solid-state synthesis of metal oxyhalides and their solid solutions via energetic metathesis reactions
- Creators
- Sujith PereraNadiya A ZelenskiRandy E PhoEdward G Gillan
- Resource Type
- Journal article
- Publication Details
- Journal of solid state chemistry, Vol.180(10), pp.2916-2925
- Publisher
- Elsevier Inc
- DOI
- 10.1016/j.jssc.2007.08.005
- ISSN
- 0022-4596
- eISSN
- 1095-726X
- Language
- English
- Date published
- 2007
- Academic Unit
- Chemistry
- Record Identifier
- 9984001179102771
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