Crystal Structure and Spectroscopic Investigation of Bromofluoro- and Fluoroiodomethane
The solid states of bromofluoromethane (BFM) and fluoroiodomethane (FIM) are characterized by X-ray diffraction analysis and by Raman spectroscopy. The single crystals were obtained by crystallization in situ at low temperature. BFM and FIM crystallize in the space group I2/a and Abm2, respectively. The Raman spectra of both compounds were recorded in different aggregation states and at different temperatures. Quantum chemical calculations and the X-ray diffraction data are considered to describe the noncovalent interactions of both compounds in the solid state. These interactions are discussed in the context of the σ-hole concept.
Silver(I) mono- and trifluoroacetates: Thermal stability and crystal structure
Silver mono- and trifluoroacetates AgCH2FCOO (I) and AgCF3COO (II) were synthesized. The compounds were studied by differential thermal analysis, X-ray powder and single-crystal diffraction, and high-temperature mass spectrometry. Metallic silver and silver fluoride were found to be the products of thermal decomposition of I and II, respectively. The composition of saturated vapor was determined for II; I decomposes on heating, but not sublimates. The crystal structures of the compounds were determined.
Karpova,Boltalin,Korenev,Troyanov
p. 65 - 68
(2008/10/09)
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