Search results for: G. L. Sharipov

Items from 1 to 18 out of 18 results

article

Sonoluminescence of Suspensions of Insoluble Chromium Carbonyl Nanoparticles in Water and Inorganic Acids

G. L. Sharipov, B. M. Gareev, A. M. Abdrakhmanov

Technical Physics Letters > 2018 > 44 > 12 > 1072-1073

The preparation and sonoluminescence of Cr(CO)₆ nanodispersed suspensions in water, 83% H₂SO₄, and 74% H₃PO₄ are described for the first time. In the spectra of single- and multibubble sonoluminescence of these suspensions, chromium atom lines are found that are analogous to the corresponding lines in the sonoluminescence spectra of true Cr(CO)₆ solutions in dodecane. Sonoluminescence of nanodispersed...

article

Sonochemical Synthesis of 5,6-Dihydro[C₇₀-D_5h(6)][5,6](1,4- dioxano)fullerene by Reaction of Fullerene with α-Diols

Z. S. Kinzyabaeva, G. L. Sharipov

Russian Journal of Organic Chemistry > 2018 > 54 > 7 > 1112-1115

A procedure has been developed for the sonochemical synthesis of 5,6-dihydro[C₇₀-D_5h(6)][5,6]- (1,4-dioxano)fullerene on the basis of heterogeneous reaction of a solution of C₇₀ in o-dichlorobenzene with α-diols in the presence of sodium hydroxide.

article

Quenching of electronically excited N₂ molecules and Tb³⁺/Eu³⁺ ions by polyatomic sulfur‐containing gases upon triboluminescence of inorganic lanthanide salts

G. L. Sharipov, A. A. Tukhbatullin, A. R. Bagautdinova

Luminescence > 32 > 5 > 824 - 828

The triboluminescence of Eu₂(SO₄)₃·8H₂O and Tb₂(SO₄)₃·8H₂O crystals in an atmosphere of sulfur dioxide (SO₂) or sulfur hexafluoride (SF₆) was studied. Quenching of the gaseous (emitter N₂) and solid‐state (emitter Ln³⁺) components of the triboluminescence (TL) emission spectrum was seen when compared with the TL spectra of the crystals in air. One reason for the quenching is a reduction in the effective...

article

Sonoluminescence and sonochemiluminescence of peroxide solutions

G. L. Sharipov, A. M. Abdrakhmanov, R. Khoroljav, L. R. Yakshembetova, more

Russian Chemical Bulletin > 2016 > 65 > 1 > 167-172

Two sonochemiluminescence mechanisms were established in peroxide solutions. The sonochemiluminescence intensity often exceeds the sonoluminescence intensity of solvents caused by inelastic collisions of cavitation bubbles in the gas phase. In solutions of peroxides, whose chemiluminescence decomposition proceeds via the monomolecular peroxide decomposition involving no radical intermediates with...

article

Triboluminescence of zirconium η⁵-complexes

G. L. Sharipov, A. A. Tukhbatullin, P. V. Kovyazin, L. V. Parfenova, more

Russian Chemical Bulletin > 2015 > 64 > 12 > 2776-2779

This work describes a comparative study of tribo- and photoluminescence of metallocenes (Cp₂HfCl₂, Cp₂TiCl₂, Cp₂ZrCl₂, (CpMe)₂ZrCl₂, rac-Me₂C(3-Bu^t-Cp)₂ZrCl₂, Ind*₂ZrCl₂). Occurring under mechanodestruction of polycrystals, triboluminescence of zirconium bis-cyclopentadienyl complexes, Cp₂ZrCl₂, (CpMe)₂ZrCl₂, and rac-Me₂C(3-Bu^t-Cp)₂ZrCl₂ has been revealed for the first time. The triboluminescence...

article

Mechanoluminescence of terbium and cerium sulfates in a noble-gas atmosphere

A. A. Tukhbatullin, G. L. Sharipov, A. M. Abdrakhmanov, M. R. Muftakhutdinov

Optics and Spectroscopy > 2014 > 116 > 5 > 691-694

Lines of Ne (3p-3s, 550–800 nm) and Xe (6p-6s, 800–1050 nm; 7p-6s, 475 nm) have been detected in the mechanoluminescence spectrum of terbium and cerium sulfate crystallohydrates. The luminescence of noble gas is observed jointly with the known bands of Ce³⁺ and Tb³⁺ ions and N*₂ lines. The lines corresponding to excited Xe⁺ ions (500–550 nm), indicative of achievement of electric-field strengths on...

article

Few-bubble luminescence in the acoustic field of a spherical resonator in aqueous solutions of sodium and terbium compounds

G. L. Sharipov, B. M. Gareev, A. M. Abdrakhmanov

Acoustical Physics > 2013 > 59 > 5 > 521-527

Stabilization and the luminescence mode during slight motion around the equilibrium position of a few (two to eight) bubbles in 2–6 mol/L aqueous solutions of NaCl, NaOH, TbCl saturated with argon were achieved in a device for monitoring single-bubble sonoluminescence in a spherical resonator. Examples are presented of this variety of multibubble sonoluminescence illustrating various spatial-spectral...

article

Quenching of tribo- and photoluminescence in a Tb₂(SO₄)₃ · 8H₂O + NaNO₂ crystalline mixture

G. L. Sharipov, A. A. Tukhbatullin, A. M. Abdrakhmanov, M. R. Muftakhutdinov

Technical Physics > 2013 > 58 > 10 > 1518-1521

It is found that the addition of NaNO₂ to Tb₂(SO₄)₃ · 8H₂O crystals quenches tribo- and photo-luminescence from the latter. In the case of triboluminescence, the glow of both Tb³⁺* ions (solid component of triboluminescence) and N ₂ ^* molecules (gas component) is quenched. The NO ₂ ⁻ ion is known to be an efficient quencher of Tb³⁺ ion luminescence by the mechanism of radiationless energy transfer...

article

Multibubble sonoluminescence of Tb³⁺ ion in aqueous solutions of dimethyl sulfoxide

G. L. Sharipov, A. M. Abdrakhmanov, L. R. Yakshembetova

Russian Chemical Bulletin > 2012 > 61 > 3 > 528-531

The intensity and spectra of multibubble sonoluminescence of TbCl₃ solutions in water-DMSO mixtures saturated with air and argon are studied. The spectra represent the superposition of the characteristic glow of Tb³⁺ ions and the continuum of emission of electronically excited products of solvent sonolysis (with H₂O*, OH*, and SO₂* as main emitters). Abnormal action of DMSO and sulfur dioxide on the...

article

Sonochemiluminescence of aromatic hydrocarbons

G. L. Sharipov, A. M. Abdrakhmanov

Russian Chemical Bulletin > 2010 > 59 > 9 > 1680-1685

Multibubble sonoluminescence of water and a series of aromatic hydrocarbons, viz., benzene, toluene, ethylbenzene, and m-xylene (at 25 °C), and a naphthalene melt (at 110–120 °C) was studied. An analysis of the influence of oxygen and argon on the sonoluminescence intensity and the luminescence spectra of these liquid compounds, as well as the effect of additives of ionol, ethanol, and 9,10-dibromoanthracene...

article

Multibubble sonolysis and sonoluminescence in molten elementary sulfur and sulfur—styrene mixture

G. L. Sharipov, V. R. Akhmetova, I. V. Rusakov, A. M. Abdrakhmanov, more

Russian Chemical Bulletin > 2010 > 59 > 5 > 917-921

The effect of saturation with argon, as well as styrene and iodine additives on the temperature dependence of multibubble sonoluminescence intensity in molten sulfur at 120–230 °C was studied. The shape of the temperature dependence with a maximum at 170–200 °C is determined by the viscosity variations related to the changes in the molecular structure of molten elemental sulfur. At high temperatures,...

article

Effect of argon on the multibubble sonoluminescence of cerium, terbium, and dysprosium trichlorides

G. L. Sharipov, R. Kh. Gainetdinov, A. M. Abdrakhmanov

Russian Chemical Bulletin > 2008 > 57 > 9 > 1831-1836

The ultrasonic (20 kHz) multibubble sonoluminescence spectra of aqueous air- or argon-saturated solutions of CeCl₃, TbCl₃, and DyCl₃ were obtained. Saturation with argon leads to the intensity redistribution in the spectrum of the continuum with an increase in its short-wavelength part and increases the intensity of the characteristic emission of Ce³⁺ and Tb³⁺ due to the enhancement of the sonophotoluminescence...

article

Multibubble sonoluminescence of europium(III) chloride in heavy water

G. L. Sharipov, R. Kh. Gainetdinov, A. M. Abdrakhmanov

Russian Chemical Bulletin > 2008 > 57 > 9 > 1827-1830

A weak glow in the region of the Eu³⁺ photoluminescence spectrum was detected against the background of the continuum of the solvent emission during multibubble sonolysis of air- or argon-saturated EuCl₃ solutions (0.1 mol L⁻¹) in heavy water. No characteristic sonoluminescence of the europium ion in aqueous solutions was observed earlier. Possible reasons for the low yield of Eu³⁺ sonoluminescence...

article

Sonoluminescence of terbium chloride in an H₂O-D₂O mixture

G. L. Sharipov, R. Kh. Gainetdinov, A. M. Abdrakhmanov

Russian Chemical Bulletin > 2006 > 55 > 7 > 1114-1118

The effect of solvent deuteration on the multibubble sonoluminescence (SL) of an aqueous solution of terbium chloride was studied. The dependence of the intensity of the characteristic SL of the Tb^III ion on the composition of an H₂O-D₂O mixture is similar to an analogous dependence of its photoluminescence (PL) but with a much smaller isotope effect. In pure D₂O, the SL intensity increases by 4 times...

article

On the emitters of sulfuric acid sonoluminescence

G. L. Sharipov, A. M. Abdrakhmanov, R. Kh. Gainetdinov

Russian Chemical Bulletin > 2005 > 54 > 8 > 1793-1797

A comparative study of the sonoluminescence spectra of water and argon-saturated aqueous H₂SO₄ solutions was carried out. At an H₂SO₄ concentration of 18 mol L⁻¹, the sulfuric acid sonoluminescence is fifty times more intense than water sonoluminescence. The sulfuric acid luminescence spectrum differs from the water sonoluminescence spectrum caused by the emission of excited water molecules and OH...

article

Sonoluminescence of aqueous solution of gadolinium chloride

G. L. Sharipov, R. Kh. Gainetdinov, A. M. Abdrakhmanov

Russian Chemical Bulletin > 2005 > 54 > 6 > 1383-1386

A line of the Gd^III ion was detected at 311 nm in the multibubble sonoluminescence spectrum of a concentrated (1 mol L⁻¹) solution of gadolinium chloride. A comparison with the earlier studied sonoluminescence of the Ce^III and Tb^III ions shows that the Gd^III ion is excited in the volume and/or on the surface of cavitation bubbles upon collisions with “hot” particles. The efficiency of excitation of...

article

Sonoluminescence of aqueous solutions of sulfuric acid and sulfur dioxide

G. L. Sharipov, A. M. Abdrakhmanov, R. Kh. Gainetdinov

Russian Chemical Bulletin > 2003 > 52 > 9 > 1966-1968

Sonoluminescence (SL) of aqueous solutions of sulfuric acid and sulfur dioxide enhances with an increase in their concentration and reaches a maximum at 16 and 0.05 mol L^–1, respectively. The further increase in the concentration of these substances decreases the SL intensity. The SL spectra of the solutions have a broad maximum at 450 nm. Excited SO₂ molecules formed in sulfuric acid due to sonolysis...

article

Sonoluminescence of aqueous solutions of lanthanide salts

G. L. Sharipov, R. Kh. Gainetdinov, A. M. Abdrakhmanov

Russian Chemical Bulletin > 2003 > 52 > 9 > 1969-1973

The influence of salts (TbCl₃, Tb(NO₃)₃, PrCl₃, EuCl₃, CeCl₃, and DyCl₃) on the spectrum and intensity of multi-bubble sonoluminescence (SL) of water was observed at a frequency of 20 kHz. Luminescence bands of the lanthanide ions were detected in the SL spectra of concentrated solutions of the Ce^III, Tb^III, and Dy^III chlorides (0.1—1 mol L^–1). No luminescence was observed for solutions of the other...

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