A comprehensive spectroscopic characterization of all known crystalline AlF3 phases (I+-,I2-,n-,Io-,I¸-AlF3) is presented for the first time in this study. Beside their X-ray diffraction powder patterns, which were already published in the literature, 27Al and 19F MAS NMR, FT IR and XPS spectroscopic techniques were applied for all phases in a consistent manner. For all phases prepared the utilization of 27Al satellite transition (SATRAS) NMR allowed to determine the quadrupolar parameters of the aluminium sites including their distributions.In addition, n-AlF3 was isolated with high phase purity and characterized following a new preparation path different from those known so far in.
Related Content
Correlation between Spectroscopic and Morphological Properties of Composite P3HT/PCBM Nanoparticles Studied by Single Particle Spectroscopy
We report the fabrication and characterization of composite nanoparticles consisting of a conducting polymer, poly-3-hexylthiophene (P3HT), doped with varying amounts of [6,6]-phenyl C61-butyric acid methyl ester (PCBM), a material blend that is commonly applied in Bulk-Heterojunction Organic Pho...


Electrochemical studies of redox probes in self-organized lyotropic liquid crystalline systems
Lyotropic liquid crystalline phases formed by surfactants are of special importance due to their close resemblance to biological systems. The redox reactions in such ordered media are of fundamental interest in understanding several complex processes occurring in the biological media, where the f...
Preparation and characterization of organic-soluble acetylated starch nanocrystals
Efficient procedures for the preparation of organic-soluble starch nanocrystal (SN) derivatives have been established with different degrees of substitution (DS). The resulting acetylated starch nanocrystals exhibit much improved solubility in common organic solvents such as N,N-dimethylformamide...


Structural characterization and ytterbium spectroscopy in Sc2O3 nanocrystals
Ytterbium-doped scandium oxide nanocrystals measuring less than 25nm with compositions of Sc2-xYbxO3 (x = .1 - 1) were prepared using the modified Pechini method. The Yb:Sc2O3 nanocrystals were obtained by calcination at low temperatures such as 173K for two hours. X-ray powder diffraction (XRD) ...
Comparative analysis of the composition, structure, and catalytic activity of the NiO-CuO-TiO2 on Titanium and NiO-CuO-Al2O3 on aluminum composites
The catalytically active oxide structures based on Al and Ti prepared by plasma-electrolytic oxidation (PEO) and additionally modified by impregnation with an aqueous solution of nickel and copper nitrates followed by annealing were studied. The oxide film-metal composites were studied using X-ra...

Electrochemical preparation of oligo(azulene) on nanoporous TiO2 and characterization of the composite layer
A nanoporous oligo(azulene)-TiO2 (OAz-TiO2) composite layer was formed by electrochemical oxidation of azulene (Az) on a nanoporous ITO/TiO2 electrode. Polymerization was performed in tetrabutylammonium hexafluorophosphate electrolyte salt dissolved in acetonitrile. The electrochemical and optica...
Theoretical study of tetrahydrofuran: Comparative investigation of spectroscopic and structural properties between gas and liquid phases
Rovibrational spectroscopic constant of tetrahydrofuran (THF) dimer have been calculated starting from three potential energy curves, each one obtained in a different way: (i) by ab initio calculations at MP2/aug-cc-pVDZ level; (ii) using Lennard-Jones liquid parameters available in the literatur...

Cation distribution and particle size effect on Raman spectrum of CoFe2O4
Mössbauer and Raman spectroscopic studies were carried out on CoFe2O4 particles synthesized with size ranging from 6 nm to 5 nm (bulk). Cation distribution studies were carried out on the high temperature and room temperature phases of the micro-crystalline CoFe2O4 by Mössbauer and Raman spectr...
And 19F MAS NMR study of (NH4)3InF6 phases
This study presents for the first time an NMR spectroscopic characterization of the room and high temperature phases of (NH4)3InF6 using 19F and 115In as probe nuclei. The reversible phase transition to the cubic phase at 353K was followed by MAS NMR in situ. Static NMR experiments of the room te...

Poly(triazine imide) with Intercalation of Lithium and Chloride Ions [(C3N3)2(NHxLi1−x)3⋅LiCl]: A Crystalline 2D Carbon Nitride Network
Poly(triazine imide) with intercalation of lithium and chloride ions (PTI/Li+Cl−) was synthesized by temperature-induced condensation of dicyandiamide in a eutectic mixture of lithium chloride and potassium chloride as solvent. By using this ionothermal approach the well-known problem of insuff...