[en] The main results of experimental investigation of nuclear magnetic resonance of fluorine and protons in powders and monocrystals of inorganic fluorides are presented. Considered are main NMR principles in solid body, nuclear-nuclear interactions, measurable parameters of NMR spectra as well as the experiment technique and theoretic statements, necessary for the results understanding. The greatest attention is paid to structural applications of the data obtained by the NMR method (line shape, secondary moments), to identify light atoms, having close factors of X-ray scattering (fluorine and oxygen, in particular), hydrogen atom localization to study structural parameters of hydrogen bonds in crystallohydrates, HF containing crystallosolvates, bifluorides and other compounds. Chemical shifts of fluorine NMR spectra and electronic structure of ion, molecular and coordinational fluorides (InF₃x3H₂O, MoF₆, WF₆, UF₆, UF₃, CsF, ZrF₄, HfF₄, CeF₄, ThF₄, UF₄, LaF₃, in particular) are also considered in detail

[en] A ¹⁹F NMR study has been made on polycrystalline ∼-UF₅ over the range 80-300 K. The anisotropic and isotropic hyperfine interactions have been determined for the terminal and bridge fluorine atoms. The spin densities on the bridge fluorine atoms have been calculated (0.6%), which indicates that the bridge U-F-U bond contains a small proportion of covalent component, which is related to partial population of the excited 3s orbitals in the fluorine

No abstract available

[en] An accelerated and simplified method anhydrous lead fluorozirconate preparation via lead nitrate solution interaction with ammonium fluorozirconates at the ratio of the reagents 5:1 and at 1.5-1.9-multiple excess of hydrofluoric acid is suggested. At 80-90 deg for 2.5-3 h the product Pb₅ZrF₆ is formed with the yield of 90.0-92.4 %

[en] Short note

[en] Interaction of hydrates of Al, Ga, and In fluorides with ethylenediamine is studied. An analysis of the samples obtained shows that the reaction yields compounds of the type MF₃x2En (En standing for ethylenediamine). It has been established that the compounds obtained are insoluble in CCl₄, acetone, benzene, toluene, ether, and ethylenediamine. They are stable in air for a prolonged period. In water, hydrolysis of the compounds proceeds to complete decomposition according to the scheme: MF₃x2En+2H₂O → M(OH)₂F+2EnxHF →sup(+Hsub(2)O)M(OH)sub(3)+2EnxHF+HF. The structure of the compounds obtained has been studied with the aid of infrared spectroscopy. Thermal decomposition begins at 200, 340, and 530 deg C, respectively, for compounds of Al, Ga, and In and proceeds in two stages

[en] Measurements have been made on the magnetic susceptibilities of the quasi-one-dimensional magnetic ∼-UF₅ and the cluster magnetic U₂F₉ (a four-nuclear type) over the range 4.2-300 K. The Curie-Weiss law applies for ∼-UF₅ above 200 K, with μef = 2.37μB, theta = -148 K; that law also applies to U₂F₉ above 150 K, with μef = 2.9μB and theta = 118 K. The antiferromagnetic ordering is discussed for the one-dimensional chains in ∼-UF₅ together with the phase transition observed in U₂F₉ at 6 K. It is assumed that the U⁴⁺ and U⁵⁺ valency states are stabilized below the phase-transition point, and only then can U₂F₉ be considered as the compound UF₄ x UF₅

[en] The atomic structure of crystals of ZnInF₅x7H₂O has been established and the crystal structure of CdGaF₅x7H₂O adjusted on the basis of three-dimensional X-ray diffractometry data obtained at room temperature. The H atoms are localized on the difference synthesis of the electron density. The adjustment is accomplished by the least squares method with an allowance for the anisotropy of thermal vibrations of the atoms and the effect of secondary extinction and anomalous scattering to divergence factors of 1.6 and 2.4%, respectively. The peculiarities of the atomic structure of these compounds and the hydrogen bonds in them are discussed

[en] K₂ZrF₅OOH structure is studied using the NMR method of ¹⁹F and ¹H broad lines. ¹H spectrum confirms presence of single protons of hydroperoxide anion OOH^-, ¹⁹F spectrum shows the presence of end and bridge fluorine atoms in studied compound in the ratio of Fsub(e):Fsub(b)=3.8+-0.5 that confirms the supposed content. Dimer structure of potassium hydroperoxopentafluorozirconate is proposed

[en] The NMR spectra of ¹H and ¹⁹F of potassium fluoroperoxozirconate are studied by the wide line NMR method. The composition is specified. Unambiguous choice is made between its hydroperoxide and peroxyhydrate structure in favour of peroxyhydrate K₃Zr₃O₄(H₂O₂)₄(OH)F. A supposition is made about cis-configuration of H₂O₂ molecules in potassium and ammonium perhydrofluorozirconates (hafnates)