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1.
E. V. Shadrina O. N. Malinkina T. G. Khonina A. B. Shipovskaya V. I. Fomina E. Yu. Larchenko N. A. Popova I. G. Zyryanova L. P. Larionov 《Russian Chemical Bulletin》2015,64(7):1633-1639
The biomimetic sol—gel synthesis of silicon—chitosan-containing glycerohydrogels was carried out using silicon tetraglycerolate as a precursor. It was found that chitosan accelerates gel formation in weakly acidic media. In more acidic media, the kinetics of the process changes according to the curve with a maximum, which can be attributed to different mechanisms of silanol condensation before and after the isoelectric point. The investigated silicon—chitosan-containing glycerohydrogels exhibit antibacterial, anti-inflammatory, and wound healing activity. The synthesized hybrid glycerohydrogels are promising materials for biomedical applications. 相似文献
2.
P. M. Larionov A. N. Malov M. M. Mandrik N. A. Maslov A. M. Orishich 《Journal of Applied Spectroscopy》2003,70(1):38-42
We investigated the laser-induced fluorescence spectra (LIF) of porcine cardiac tissues with different degrees of viability. The data obtained are compared with the results of routine histological investigations and also with the experiments performed with the use of fluorescent probes. It has been found with a high degree of reliability that the loss of the viability of the myocardium tissue leads to the alteration of its LIF spectra. This can be used for low-invasive rapid control of transplant viability in the process of its preparation and during surgery. 相似文献
3.
Kaon production is studied within the Giessen Boltzmann–Uehling–Uhlenbeck (GiBUU) model. Results are compared with experiment and with other models. The influence of the kaon potential on the kaon azimuthal distributions at SIS energies is considered. We also discuss the role of the many-body collisions at high-density phase of reaction. 相似文献
4.
5.
B. A. Savel'ev V. V. Larionov B. V. Goryachev S. B. Mogil'nitskii A. P. Kutlin 《Russian Physics Journal》1985,28(10):797-799
We consider a method of parametrizing the radiative scattering indicatrix. The scattering indicatrix is represented as projections , , on the axes of a Cartesian system of coordinates. Examples are discussed of the experimental determination of these parameters for a model dispersive medium consisting of a solution of polystyrene latex particles in water.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 10, pp. 36–39, October, 1985. 相似文献
6.
S. M. Zemskova L. A. Glinskaya R. F. Klevtsova S. A. Gromilov V. B. Durasov V. A. Nadolinnyi S. V. Larionov 《Journal of Structural Chemistry》1995,36(3):484-495
Two crystal modifications, I and II, of the ZnPhen(S2CNEt2)2 complex have been isolated. According to XRD data, the single crystals of I are triclinic with a=9.745(2), b=10.252(2), c=14.331(3) Å, α=99.18(2), β=91.01(2), γ=113.28(2)°, V=1293.2(4) Å3, space group P1, Z=2, dcalc=1.401 g/cm3. The crystals of II are monoclinic with a=7.220(6), b=18.095(2), c=19.050(4) Å, β=95.85(2)°, V=2475.8(7) Å3, space group C2/c, Z=4, dcalc=1.461 g/cm3. In both modifications, the structure is formed by monomer molecules with a distorted octahedral environment of the zinc atom. All atoms in I are in the general position; in II, the atoms are linked by the twofold rotation axis. It is shown by X-ray phase analysis (XRPA) that the MnPhen(S2CNEt2)2 complexes (III) are isostructural to modification I of the ZnPhen(S2CNEt2)2 complex, which underlies the synthesis of a solid solution of these complexes, MnZn2Phen3(S2CNEt2)6 (phase IV). It is found that MPhen(S2CNEt2)2 (M=Zn2+, Mn2+) and phase IV quantitatively sublime when heated in vacuum. Thermolysis of III in argon yields manganese(II) sulfide of cubic modification; the main product of thermolysis of phase IV is a solid solution of ZnxMn1?xS of hexagonal modification. 相似文献
7.
R. F. Klevtsova L. A. Glinskaya V. G. Shchukin S. V. Larionov 《Journal of Structural Chemistry》2002,43(1):133-141
Single crystals of the mixed-ligand complex compounds of Cd(i-Bu2PS2)2 with Phen and 2,2-Bipy have been obtained. The crystal structures of the complexes [CdPhen{(i-C4H9)2PS2}2] (I) and [Cd(2,2-Bipy){(i-C4H9)2PS2}2] (II) were determined by X-ray diffraction (CAD-4 diffractometer, MoK
radiation, 1739 F
F
hkl
, R = 0.0417 for I and 2612 F
hkl
, R = 0.0442 for II). Monoclinic crystals with unit cell parameters a = 15.640(3), b = 20.797(4), c = 11.559(2) , = 111.21(3)°, V = 3505(1) 3, Z = 4, d
calc = 1.348 g/cm3, space group
(I); a = 14.737(3), b = 20.918(4), c = 11.517(2) , = 105.53(3)°, V = 3421(1) 3, Z = 4, d
calc = 1.334 g/cm3, space group
(II). The structures consist of discrete monomer molecules. The coordination polyhedra of the Cd atoms are distorted octahedra formed by four S atoms of two cyclic bidentate ligands i-Bu2
and two N atoms of the cyclic bidentate ligands — Phen or 2,
-Bipy molecules. The interaction between molecules I and II in the structures and the packing modes are considered. 相似文献
8.
9.
R. F. Klevtsova L. A. Glinskaya E. I. Berus S. V. Larionov 《Journal of Structural Chemistry》2001,42(4):639-647
The structures of the mixed-ligand complexes Zn(4,4-Bipy){(n-C3H7)2NCS2}2 (I) and Zn2(4,4-Bipy){(n-C3H7)2NCS2}4 (II) were determined by single crystal X-ray diffractometry (CAD-4 diffractometer, MoK radiation, 2479 and 1616 Fhkl, R = 0.0550 and 0.0523). The crystals are monoclinic with cell parameters a = 16.560(2), b = 11.423(1), c = 15.319(2) , = 94.27(1)°, V = 2889.8(6) 3, Z = 4, space group P21/c (for I) and a = 8.515(1), b = 10.965(1), c = 27.816(3) , = 95.860(1)°, V = 2583.5(5) 3, Z = 2, space group P21/n (for II). The structure of I is composed of discrete mononuclear molecules; the structure of II consists of discrete centrosymmetric binuclear molecules. The coordination polyhedra of the Zn atoms (c.n. 5) are formed by four S atoms of the two cyclic bidentate dithiocarbamate ligands and the N atom of the 4,4-Bipy ligand, which is monodentate in I and bridging bidentate in II. Molecular packings and interactions in the structures are considered. 相似文献
10.
R. F. Klevtsova L. A. Glinskaya V. G. Shchukin S. V. Larionov 《Journal of Structural Chemistry》2001,42(3):446-453
Volatile mixed-ligand complexes of Zn(i-Bu2PS2)2 with Phen and 2,2-Bipy have been synthesized. The crystal structures of the complexes ZnPhen{(i-C4H9)2PS2}2 and Zn(2,2-Bipy){(i-C4H9)2PS2}2 were determined by single crystal X-ray diffractometry (CAD-4 diffractometer, MoK radiation, 2100 Fhkl, R = 0.0423 for the first complex and 2003 Fhkl, R = 0.0486 for the second). The crystals are monoclinic with cell dimensions a = 17.580(4), b = 9.969(2), c = 19.175(4) , = 90.33(3)°, V = 3360(1) 3, Z = 4, d
calc = 1.313 g/cm3, space group P2/n (for the Phen complex); a = 24.219(5), b = 11.386(2), c = 24.916(5) , = 97.70(3)°, V = 6809(2) 3, Z = 8, d
calc = 1.249 g/cm3, space group C2/c (for the 2,2-Bipy complex). The complexes are constructed from discrete monomer molecules. The coordination polyhedra of the Zn atoms are distorted tetrahedra formed by two S atoms of the two monodentate i-Bu2PS
2
-
ligands and two N atoms of the cyclic bidentate Phen or 2,2-Bipy molecules. Intermolecular interactions and packings in the structures are analyzed. 相似文献