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91.
E. I. Orlova E. P. Kharitonova N. E. Novikova I. A. Verin O. A. Alekseeva N. I. Sorokina V. I. Voronkova 《Crystallography Reports》2010,55(3):404-411
Single crystals of potassium titanyl phosphate doped with hafnium are grown by spontaneous flux crystallization. Their physical
properties are studied, and the structure of three KTi1 − x
Hf
x
OPO4 crystals (x = 0.01, 0.03, and 0.12) is determined. In the crystals studied, hafnium mostly occupies the second titanium position. The
doping of KTP crystals with hafnium results in an elongation of K-O bonds in the potassium polyhedra and, as a consequence,
in a considerable (by approximately 180°C) decrease in the temperature of ferroelectric phase transition. The magnitude of
anomalous permittivity substantially decreases. The electrical conduction in the specimens studied decreases by approximately
half an order of magnitude in the low-temperature region but remains almost unchanged in the high-temperature region. Even
at minor concentrations, the presence of a hafnium additive in the specimens considerably (by 35%) enhances the intensity
of the second harmonic generation of laser radiation. 相似文献
92.
93.
M. N. Gerke A. V. Istratov D. N. Bukharov O. A. Novikova I. O. Skryabin S. M. Arakelian 《Bulletin of the Russian Academy of Sciences: Physics》2017,81(12):1387-1390
The surface resistance of bimetallic granular films prepared by means of laser-induced deposition is studied. The possibility of modeling their conductivity is demonstrated, depending on their morphological properties. 相似文献
94.
Mariya V. Edeleva Igor A. Kirilyuk Dmitry P. Zubenko Irina F. Zhurko Sylvain R. A. Marque Didier Gigmes Yohann Guillaneuf Elena G. Bagryanskaya 《Journal of polymer science. Part A, Polymer chemistry》2009,47(23):6579-6595
The H‐atom transfer reaction was studied for a series of imidazoline, imidazolidine, and pyrrolidine‐based alkoxyamines containing either isobutyrate‐2‐yl or 1‐phenylethyl alkyl fragments. The C O bond homolysis rate constants and activation energies were determined by 1H NMR product analysis as a function of temperature. Inter‐ and intramolecular H‐atom transfer reactions were distinguished by examination of alkoxyamine thermolysis products in the absence and in the presence of a radical scavenger (thiophenol or deuterated styrene). A correlation between the structure of the nitroxyl fragment of alkoxyamine and the H‐transfer reaction was found. The high steric demands of the substituents on the nitroxyl part of the isobutyrate‐2‐yl alkoxyamine decrease both types of reaction. For alkoxyamines containing the 1‐phenylethoxyamines, neither inter‐ nor intramolecular H‐atom transfer was observed. Controlled polymerization of methylmethacrylate initiated with imidazoline‐based alkoxyamine was observed, although the polymer obtained was not living. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 6579–6595, 2009 相似文献
95.
A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Science Center, Russian Academy of Sciences, 420083 Kazan, Tatarstan, Russia. Translated fromIzvestiya Akademii Nauk, Seriya Khimicheskaya, No. 12, pp. 2816–2817, December, 1992. 相似文献
96.
97.
Berestovitskaya V. M. Ozerova O. Yu. Efimova T. P. Novikova T. A. 《Russian Journal of Organic Chemistry》2015,51(12):1797-1798
Russian Journal of Organic Chemistry - 相似文献
98.
Prishchenko A. A. Livantsov M. V. Novikova O. P. Livantsova L. I. Ershov I. S. Petrosyan V. S. 《Russian Journal of General Chemistry》2015,85(2):370-379
Convenient methods for synthesis of various aminomethylenediphosphorus-containing acids and their derivatives starting from available trimethylsilyl esters of hypophosphorous and phosphorous acids, ethoxymethyleneimine hydrochlorides, and N-substituted formamides have been proposed. Selected properties of the obtained compounds have been examined.
相似文献99.
Chekannikov Andrey Kapaev Roman Novikova Svetlana Tabachkova Nataliya Kulova Tatiana Skundin Alexander Yaroslavtsev Andrey 《Journal of Solid State Electrochemistry》2017,21(6):1615-1624
Journal of Solid State Electrochemistry - Nanocomposite materials, Na3V2(PO4)3/C and Na3V2(PO4)3/C/Ag, were synthesized by a modified Pechini method. Their properties were characterized with the... 相似文献
100.
Klimin S. A. Radionov M. S. Yakovlev V. A. Novikova N. N. Peschanskii A. V. 《Optics and Spectroscopy》2021,129(1):42-46
Optics and Spectroscopy - The results of an experimental study of the phonon spectrum of a LiNiPO4 single crystal by infrared (IR) reflection spectroscopy are presented. Spectroscopic parameters of... 相似文献