57 research outputs found
Spectral multiplicity for powers of weakly mixing automorphisms
We study the behavior of maximal multiplicities for the powers of
a weakly mixing automorphism . For some special infinite set we show the
existence of a weakly mixing rank-one automorphism such that
and for all . Moreover, the cardinality
of the set of spectral multiplicities for is not bounded. We have
and , , . We
also construct another weakly mixing automorphism with the following
properties: for but ,
all powers have homogeneous spectrum, and the set of limit points of
the sequence is infinite
Π‘ΠΠΠ’ΠΠ (E,E)-ΠΠΠΠΠΠ’ΠΠΠΠΠ‘ΠΠΠΠ ΠΠ ΠΠ‘ΠΠΠΠ ΠΠΠ‘ΠΠΠ 4-ΠΠΠΠΠΠΠ¦ΠΠ’ΠΠ€ΠΠΠΠΠ
4-Aminoacetophenone oxime is convenient and accessible reagent for chemical modification of substituted aromatic aldehydes to produce ligands for complexation with transition metals. By the reaction of 4-aminoacetophenone oxime with aldehydes vanillyl series by boiling in absolute methanol in the presence of catalytic amounts of glacial acetic acid, (E,E)-azomethyneoximes with 70β85 % yields were synthesized. By the reaction of 4-aminoacetophenone oxime with 9-phenanthrene carboxaldehyde, ferrocene carboxaldehyde, 5-phenylisoxazole-3-carboxaldehyde and 5-(p-tolyl)isoxazole- 3-carboxaldehyde, corresponding (E,E)-azomethineoximes with 77β84 % yield were obtained. By acylation of the (E)-1-{4-(E)-benzo[d][1,3]dioxol-5-ylmethyleneaminophenyl}ethan-1-one oxime in a solution of dry diethyl ester in the presence of triethylamine, corresponding ester was synthesized with 84 % yield. By quantum chemical calculations using DFT method using level B3LYP1 / MIDI using the theory GAMESS software package and a MIDI basic set, we defined the most thermodynamically stable isomers of the synthesized compounds. In the process of calculations a full optimization of all geometric parameters to achieve a minimum total energy (E,E)-, (E,Z)-, (Z,E)- and (Z,Z)-azomethineoximes was carried out.ΠΠΊΡΠΈΠΌ 4-Π°ΠΌΠΈΠ½ΠΎΠ°ΡΠ΅ΡΠΎΡΠ΅Π½ΠΎΠ½Π° ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠ΄ΠΎΠ±Π½ΡΠΌ ΠΈ Π΄ΠΎΡΡΡΠΏΠ½ΡΠΌ ΡΠ΅Π°Π³Π΅Π½ΡΠΎΠΌ Π΄Π»Ρ Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ Π·Π°ΠΌΠ΅ΡΠ΅Π½Π½ΡΡ
Π°ΡΠΎΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΡ
Π°Π»ΡΠ΄Π΅Π³ΠΈΠ΄ΠΎΠ² Ρ ΡΠ΅Π»ΡΡ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ Π»ΠΈΠ³Π°Π½Π΄ΠΎΠ² Π΄Π»Ρ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠΎΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ Ρ ΠΏΠ΅ΡΠ΅Ρ
ΠΎΠ΄Π½ΡΠΌΠΈ ΠΌΠ΅ΡΠ°Π»Π»Π°ΠΌΠΈ. ΠΠ·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΠ΅ΠΌ ΠΎΠΊΡΠΈΠΌΠ° 4-Π°ΠΌΠΈΠ½ΠΎΠ°ΡΠ΅ΡΠΎΡΠ΅Π½ΠΎΠ½Π° Ρ Π°Π»ΡΠ΄Π΅Π³ΠΈΠ΄Π°ΠΌΠΈ Π²Π°Π½ΠΈΠ»ΠΈΠ½ΠΎΠ²ΠΎΠ³ΠΎ ΡΡΠ΄Π°, Π² ΡΡΠ΅Π΄Π΅ ΠΊΠΈΠΏΡΡΠ΅Π³ΠΎ Π°Π±ΡΠΎΠ»ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠ°Π½ΠΎΠ»Π° Π² ΠΏΡΠΈΡΡΡΡΡΠ²ΠΈΠΈ ΠΊΠ°ΡΠ°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ² Π»Π΅Π΄ΡΠ½ΠΎΠΉ ΡΠΊΡΡΡΠ½ΠΎΠΉ ΠΊΠΈΡΠ»ΠΎΡΡ Π±ΡΠ»ΠΈ ΡΠΈΠ½ΡΠ΅Π·ΠΈΡΠΎΠ²Π°Π½Ρ (E,E)-Π°Π·ΠΎΠΌΠ΅ΡΠΈΠ½Ρ Ρ Π²ΡΡ
ΠΎΠ΄Π°ΠΌΠΈ 70β85 %. ΠΠ·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΠ΅ΠΌ 4-Π°ΠΌΠΈΠ½ΠΎΠ°ΡΠ΅ΡΠΎΡΠ΅Π½ΠΎΠ½Π° Ρ 9-ΡΠ΅Π½Π°Π½ΡΡΠ΅Π½ΠΊΠ°ΡΠ±Π°Π»ΡΠ΄Π΅Π³ΠΈΠ΄ΠΎΠΌ, ΡΠ΅ΡΡΠΎΡΠ΅Π½ΠΊΠ°ΡΠ±Π°Π»ΡΠ΄Π΅Π³ΠΈΠ΄ΠΎΠΌ, 5-ΡΠ΅Π½ΠΈΠ»ΠΈΠ·ΠΎΠΊΡΠ°Π·ΠΎΠ»-3-ΠΊΠ°ΡΠ±Π°Π»ΡΠ΄Π΅Π³ΠΈΠ΄ΠΎΠΌ ΠΈ 5-(ΠΏ-ΡΠΎΠ»ΠΈΠ»)ΠΈΠ·ΠΎΠΊΡΠ°Π·ΠΎΠ»-3-ΠΊΠ°ΡΠ±Π°Π»ΡΠ΄Π΅Π³ΠΈΠ΄ΠΎΠΌ Π±ΡΠ»ΠΈ ΠΏΠΎΠ»ΡΡΠ΅Π½Ρ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡΠΈΠ΅ (E,E)-Π°Π·ΠΎΠΌΠ΅ΡΠΈΠ½ΠΎΠΊΡΠΈΠΌΡ c Π²ΡΡ
ΠΎΠ΄ΠΎΠΌ 77β84 %. ΠΡΠΈΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΎΠΊΡΠΈΠΌΠ° (E)-1-{4-(E)-Π±Π΅Π½Π·ΠΎ[d][1,3]Π΄ΠΈΠΎΠΊΡΠΎΠ»-5-ΠΈΠ»ΠΌΠ΅ΡΠΈΠ»Π΅Π½Π°ΠΌΠΈΠ½ΠΎΡΠ΅Π½ΠΈΠ»}ΡΡΠ°Π½-1-ΠΎΠ½Π° Ρ
Π»ΠΎΡΠ°Π½Π³ΠΈΠ΄ΡΠΈΠ΄ΠΎΠΌ 4,5-Π΄ΠΈΡ
Π»ΠΎΡΠΈΠ·ΠΎΡΠΈΠ°Π·ΠΎΠ»-3-ΠΊΠ°ΡΠ±ΠΎΠ½ΠΎΠ²ΠΎΠΉ ΠΊΠΈΡΠ»ΠΎΡΡ Π² ΡΠ°ΡΡΠ²ΠΎΡΠ΅ ΡΡΡ
ΠΎΠ³ΠΎ Π΄ΠΈΡΡΠΈΠ»ΠΎΠ²ΠΎΠ³ΠΎ ΡΡΠΈΡΠ° Π² ΠΏΡΠΈΡΡΡΡΡΠ²ΠΈΠΈ ΡΡΠΈΡΡΠΈΠ»Π°ΠΌΠΈΠ½Π° Π±ΡΠ» ΡΠΈΠ½ΡΠ΅Π·ΠΈΡΠΎΠ²Π°Π½ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡΠΈΠΉ ΡΠ»ΠΎΠΆΠ½ΡΠΉ ΡΡΠΈΡ Ρ Π²Ρ- Ρ
ΠΎΠ΄ΠΎΠΌ 84 %. ΠΡΡΠ΅ΠΌ ΠΊΠ²Π°Π½ΡΠΎΠ²ΠΎ-Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ°ΡΡΠ΅ΡΠΎΠ² Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΌΠ΅ΡΠΎΠ΄Π° DFT Ρ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ ΡΡΠΎΠ²Π½Ρ ΡΠ΅ΠΎΡΠΈΠΈ B3LYP1/MIDI, ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΠΎΠ³ΠΎ ΠΏΠ°ΠΊΠ΅ΡΠ° GAMESS ΠΈ Π±Π°Π·ΠΈΡΠ½ΠΎΠ³ΠΎ Π½Π°Π±ΠΎΡΠ° MIDI ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Ρ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΡΠ΅ΡΠΌΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈ ΡΡΡΠΎΠΉΡΠΈΠ²ΡΠ΅ ΠΈΠ·ΠΎΠΌΠ΅ΡΡ ΡΡΠ΄Π° ΡΠΈΠ½ΡΠ΅Π·ΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ. ΠΡΠΈ ΡΠ°ΡΡΠ΅ΡΠ°Ρ
ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΡ Π²ΡΠ΅Ρ
Π³Π΅ΠΎΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² Π΄ΠΎ Π΄ΠΎΡΡΠΈΠΆΠ΅Π½ΠΈΡ ΠΌΠΈΠ½ΠΈΠΌΡΠΌΠΎΠ² ΠΏΠΎΠ»Π½ΡΡ
ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΡΡ
ΡΠ½Π΅ΡΠ³ΠΈΠΉ (E,E)-, (E,Z)-(Z,E)- ΠΈ (Z,Z)-Π°Π·ΠΎΠΌΠ΅ΡΠΈΠ½ΠΎΠΊΡΠΈΠΌΠΎΠ²
Π‘ΠΠΠ’ΠΠ (E,E)-ΠΠΠΠΠΠΠΠΠ’ΠΠΠΠ ΠΠ ΠΠ‘ΠΠΠΠ 4-ΠΠΠΠΠΠΠΠΠΠΠΠΠΠΠ
Liquid crystal display devices are widely used in industries such as measuring instrumentation, consumer and industrial electronics, medical equipment and others. The production of these devices is a promising and growing branch of industry in Belarus. The analysis of the liquid crystal device market suggests that the demand for film polarizers of all types (transmissive, reflective and permeable-reflective) will increase due to the constant growth of liquid crystal device manufacture and their scope expanding. Currently, manufacturers of liquid crystal devices in Belarus buy polarizers abroad, and the price is determined by the manufacturers. Obviously, the researches aimed at creating domestic film polarizers of various functional purposes and for the development of technologies for their manufacture, are relevant. 4-aminoazobenzene (aniline yellow colorant) is used in the production of more complex intermediates, dyestuffs, chemical additives to polymers, pharmaceuticals, pesticides, etc. 4-aminoazobenzene is an accessible parent compound for the synthesis of promising compounds for the development of optical materials. By reaction of 4-aminoazobenzene series with vanillin aldehydes in a medium of boiling absolute methanol in the presence of catalytic amounts of glacial acetic acid, (E,E)-azoazomethynes with 75β88 % yields were synthesized.Β ΠΠΈΠ΄ΠΊΠΎΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΡΡΡΠΎΠΉΡΡΠ²Π° ΠΎΡΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΡ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΈ ΡΠΈΡΠΎΠΊΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΡΡΡΡ Π² ΡΠ°ΠΊΠΈΡ
ΠΎΡΡΠ°ΡΠ»ΡΡ
ΡΠ΅Ρ
Π½ΠΈΠΊΠΈ ΠΊΠ°ΠΊ ΠΈΠ·ΠΌΠ΅ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠ΅ ΠΏΡΠΈΠ±ΠΎΡΠΎΡΡΡΠΎΠ΅Π½ΠΈΠ΅, Π±ΡΡΠΎΠ²Π°Ρ ΠΈ ΠΏΡΠΎΠΌΡΡΠ»Π΅Π½Π½Π°Ρ ΡΠ»Π΅ΠΊΡΡΠΎΠ½ΠΈΠΊΠ°, ΠΌΠ΅Π΄ΠΈΡΠΈΠ½ΡΠΊΠ°Ρ ΡΠ΅Ρ
Π½ΠΈΠΊΠ° ΠΈ Π΄Ρ. ΠΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΠ²ΠΎ ΡΡΠΈΡ
ΡΡΡΡΠΎΠΉΡΡΠ² ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠΉ ΠΈ ΡΠ°Π·Π²ΠΈΠ²Π°ΡΡΠ΅ΠΉΡΡ ΠΎΡΡΠ°ΡΠ»ΡΡ ΠΏΡΠΎΠΌΡΡΠ»Π΅Π½Π½ΠΎΡΡΠΈ ΠΠ΅Π»Π°ΡΡΡΠΈ. ΠΠ½Π°Π»ΠΈΠ· ΡΡΠ½ΠΊΠ° ΠΆΠΈΠ΄ΠΊΠΎΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΡΡΡΠΎΠΉΡΡΠ² ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΡΡΠ²Π΅ΡΠΆΠ΄Π°ΡΡ, ΡΡΠΎ ΡΠΏΡΠΎΡ Π½Π° ΠΏΠ»Π΅Π½ΠΎΡΠ½ΡΠ΅ ΠΏΠΎΠ»ΡΡΠΈΠ·Π°ΡΠΎΡΡ Π²ΡΠ΅Ρ
ΡΠΈΠΏΠΎΠ² (ΠΏΡΠΎΠΏΡΡΠΊΠ°ΡΡΠ΅Π³ΠΎ, ΠΎΡΡΠ°ΠΆΠ°ΡΡΠ΅Π³ΠΎ ΠΈ ΠΏΡΠΎΠΏΡΡΠΊΠ°ΡΡΠ΅-ΠΎΡΡΠ°ΠΆΠ°ΡΡΠ΅Π³ΠΎ) Π±ΡΠ΄Π΅Ρ Π²ΠΎΠ·ΡΠ°ΡΡΠ°ΡΡ Π² ΡΠ²ΡΠ·ΠΈ Ρ ΠΏΠΎΡΡΠΎΡΠ½Π½ΡΠΌ ΡΠΎΡΡΠΎΠΌ Π²ΡΠΏΡΡΠΊΠ° ΠΆΠΈΠ΄ΠΊΠΎΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈΠ½Π΄ΠΈΠΊΠ°ΡΠΎΡΠΎΠ² ΠΈ ΡΠ°ΡΡΠΈΡΠ΅Π½ΠΈΠ΅ΠΌ ΡΡΠ΅Ρ ΠΈΡ
ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ. Π Π½Π°ΡΡΠΎΡΡΠ΅Π΅ Π²ΡΠ΅ΠΌΡ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΡΠ΅Π»ΠΈ ΠΆΠΈΠ΄ΠΊΠΎΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈΠ½Π΄ΠΈΠΊΠ°ΡΠΎΡΠΎΠ² Π² Π Π΅ΡΠΏΡΠ±Π»ΠΈΠΊΠ΅ ΠΠ΅Π»Π°ΡΡΡΡ Π·Π°ΠΊΡΠΏΠ°ΡΡ ΠΏΠΎΠ»ΡΡΠΈΠ·Π°ΡΠΎΡΡ Π·Π° ΡΡΠ±Π΅ΠΆΠΎΠΌ, ΠΏΡΠΈΡΠ΅ΠΌ ΡΠ΅Π½Π° Π½Π° Π½ΠΈΡ
ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ΅ΡΡΡ ΡΠΈΡΠΌΠ°ΠΌΠΈ-ΠΈΠ·Π³ΠΎΡΠΎΠ²ΠΈΡΠ΅Π»ΡΠΌΠΈ. ΠΡΠ΅Π²ΠΈΠ΄Π½ΠΎ, ΡΡΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ, Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½Π½ΡΠ΅ Π½Π° ΡΠΎΠ·Π΄Π°Π½ΠΈΠ΅ ΠΎΡΠ΅ΡΠ΅ΡΡΠ²Π΅Π½Π½ΡΡ
ΠΏΠ»Π΅Π½ΠΎΡΠ½ΡΡ
ΠΏΠΎΠ»ΡΡΠΈΠ·Π°ΡΠΎΡΠΎΠ² ΡΠ°Π·Π»ΠΈΡΠ½ΠΎΠ³ΠΎ ΡΡΠ½ΠΊΡΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠ³ΠΎ Π½Π°Π·Π½Π°ΡΠ΅Π½ΠΈΡ ΠΈ Π½Π° ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΡ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΉ ΠΈΡ
ΠΈΠ·Π³ΠΎΡΠΎΠ²Π»Π΅Π½ΠΈΡ, ΡΠ²Π»ΡΡΡΡΡ Π°ΠΊΡΡΠ°Π»ΡΠ½ΡΠΌΠΈ. 4-ΠΠΌΠΈΠ½ΠΎΠ°Π·ΠΎΠ±Π΅Π½Π·ΠΎΠ» (ΠΊΡΠ°ΡΠΈΡΠ΅Π»Ρ Π°Π½ΠΈΠ»ΠΈΠ½ΠΎΠ²ΡΠΉ ΠΆΠ΅Π»ΡΡΠΉ) ΠΏΡΠΈΠΌΠ΅Π½ΡΠ΅ΡΡΡ Π² ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΠ²Π΅ Π±ΠΎΠ»Π΅Π΅ ΡΠ»ΠΎΠΆΠ½ΡΡ
ΠΏΡΠΎΠΌΠ΅ΠΆΡΡΠΎΡΠ½ΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ², ΠΊΡΠ°ΡΠΈΡΠ΅Π»Π΅ΠΉ, Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
Π΄ΠΎΠ±Π°Π²ΠΎΠΊ ΠΊ ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ°ΠΌ, ΡΠ°ΡΠΌΠ°ΡΠ΅Π²ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΡΠ΅ΠΏΠ°ΡΠ°ΡΠΎΠ², ΠΏΠ΅ΡΡΠΈΡΠΈΠ΄ΠΎΠ² ΠΈ Π΄Ρ. 4-ΠΠΌΠΈΠ½ΠΎΠ°Π·ΠΎΠ±Π΅Π½Π·ΠΎΠ» ΡΠ²Π»ΡΠ΅ΡΡΡ Π΄ΠΎΡΡΡΠΏΠ½ΡΠΌ ΠΈΡΡ
ΠΎΠ΄Π½ΡΠΌ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠ΅ΠΌ Π΄Π»Ρ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ Π½Π° Π΅Π³ΠΎ ΠΎΡΠ½ΠΎΠ²Π΅ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΡΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ Π΄Π»Ρ ΡΠΎΠ·Π΄Π°Π½ΠΈΡ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ². ΠΠ·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΠ΅ΠΌ 4-Π°ΠΌΠΈΠ½ΠΎΠ°Π·ΠΎΠ±Π΅Π½Π·ΠΎΠ»Π° Ρ Π°Π»ΡΠ΄Π΅Π³ΠΈΠ΄Π°ΠΌΠΈ Π²Π°Π½ΠΈΠ»ΠΈΠ½ΠΎΠ²ΠΎΠ³ΠΎ ΡΡΠ΄Π° Π² ΡΡΠ΅Π΄Π΅ ΠΊΠΈΠΏΡΡΠ΅Π³ΠΎ Π°Π±ΡΠΎΠ»ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠ°Π½ΠΎΠ»Π° Π² ΠΏΡΠΈΡΡΡΡΡΠ²ΠΈΠΈ ΠΊΠ°ΡΠ°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ² Π»Π΅Π΄ΡΠ½ΠΎΠΉ ΡΠΊΡΡΡΠ½ΠΎΠΉ ΠΊΠΈΡΠ»ΠΎΡΡ Π±ΡΠ»ΠΈ ΡΠΈΠ½ΡΠ΅Π·ΠΈΡΠΎΠ²Π°Π½Ρ (E,E)-Π°Π·ΠΎΠ°Π·ΠΎΠΌΠ΅ΡΠΈΠ½Ρ Ρ Π²ΡΡ
ΠΎΠ΄Π°ΠΌΠΈ 75β88 %.
(Π,Π)-Π΄ΠΈΠ°Π·ΠΎΠΌΠ΅ΡΠΈΠ½Ρ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π½Π°ΡΡΠ°Π»ΠΈΠ½-1,5-Π΄ΠΈΠ°ΠΌΠΈΠ½Π° ΠΈ ΠΈΠ·ΡΡΠ΅Π½ΠΈΠ΅ ΠΈΡ ΠΏΠΎΠ»ΡΡΠΈΠ·Π°ΡΠΈΠΎΠ½Π½ΡΡ ΡΠ²ΠΎΠΉΡΡΠ²
Liquid crystal devices are widely used in measuring instrumentation, consumer and industrial electronics, medical, scientific and military equipment. The production of these devices is a promising and developing industry. Analysis of the market of liquid crystal devices suggests that the demand for film polarizers of transmission, reflection and transmission reflection types will increase due to the constant growth of production of liquid crystal indicators and the expansion of their applications. Studies aimed at the creation of film polarizers for various functional purposes and the development of technologies for their manufacture are relevant. Naphthalene-1,5-diamine widely used in the production of complex intermediate intermediates, dyes, chemical additives to polymers, pharmaceuticals, pesticides, etc. Naphthalene-1,5-diamine is an available starting compound for obtaining on its base promising substances for the development of optical materials and biologically active compounds. By interaction of naphthalene-1,5-diamine with substituted aldehydes or benzaldehydes of vanillin series in the medium of boiling absolute methanol in the presence of catalytic amounts of glacial acetic acid, (E,E)-diazomethines with yields of 75β87 % were synthesized.ΠΠΈΠ΄ΠΊΠΎΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΡΡΡΠΎΠΉΡΡΠ²Π° ΡΠΈΡΠΎΠΊΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΡΡΡΡ Π² ΠΈΠ·ΠΌΠ΅ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΌ ΠΏΡΠΈΠ±ΠΎΡΠΎΡΡΡΠΎΠ΅Π½ΠΈΠΈ, Π±ΡΡΠΎΠ²ΠΎΠΉ ΠΈ ΠΏΡΠΎΠΌΡΡΠ»Π΅Π½Π½ΠΎΠΉ ΡΠ»Π΅ΠΊΡΡΠΎΠ½ΠΈΠΊΠ΅, ΠΌΠ΅Π΄ΠΈΡΠΈΠ½ΡΠΊΠΎΠΉ, Π½Π°ΡΡΠ½ΠΎΠΉ ΠΈ Π²ΠΎΠ΅Π½Π½ΠΎΠΉ ΡΠ΅Ρ
Π½ΠΈΠΊΠ΅. ΠΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΠ²ΠΎ ΡΡΠΈΡ
ΡΡΡΡΠΎΠΉΡΡΠ² ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠΉ ΠΈ ΡΠ°Π·Π²ΠΈΠ²Π°ΡΡΠ΅ΠΉΡΡ ΠΎΡΡΠ°ΡΠ»ΡΡ ΠΏΡΠΎΠΌΡΡΠ»Π΅Π½Π½ΠΎΡΡΠΈ. ΠΠ½Π°Π»ΠΈΠ· ΡΡΠ½ΠΊΠ° ΠΆΠΈΠ΄ΠΊΠΎΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΡΡΡΠΎΠΉΡΡΠ² ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΡΡΠ²Π΅ΡΠΆΠ΄Π°ΡΡ, ΡΡΠΎ ΡΠΏΡΠΎΡ Π½Π° ΠΏΠ»Π΅Π½ΠΎΡΠ½ΡΠ΅ ΠΏΠΎΠ»ΡΡΠΈΠ·Π°ΡΠΎΡΡ ΠΏΡΠΎΠΏΡΡΠΊΠ°ΡΡΠ΅Π³ΠΎ, ΠΎΡΡΠ°ΠΆΠ°ΡΡΠ΅Π³ΠΎ ΠΈ ΠΏΡΠΎΠΏΡΡΠΊΠ°ΡΡΠ΅-ΠΎΡΡΠ°ΠΆΠ°ΡΡΠ΅Π³ΠΎ ΡΠΈΠΏΠΎΠ² Π±ΡΠ΄Π΅Ρ Π²ΠΎΠ·ΡΠ°ΡΡΠ°ΡΡ Π² ΡΠ²ΡΠ·ΠΈ Ρ ΠΏΠΎΡΡΠΎΡΠ½Π½ΡΠΌ ΡΠΎΡΡΠΎΠΌ Π²ΡΠΏΡΡΠΊΠ° ΠΆΠΈΠ΄ΠΊΠΎΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈΠ½Π΄ΠΈΠΊΠ°ΡΠΎΡΠΎΠ² ΠΈ ΡΠ°ΡΡΠΈΡΠ΅Π½ΠΈΠ΅ΠΌ ΡΡΠ΅Ρ ΠΈΡ
ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ, Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½Π½ΡΠ΅ Π½Π° ΡΠΎΠ·Π΄Π°Π½ΠΈΠ΅ ΠΏΠ»Π΅Π½ΠΎΡΠ½ΡΡ
ΠΏΠΎΠ»ΡΡΠΈΠ·Π°ΡΠΎΡΠΎΠ² ΡΠ°Π·Π»ΠΈΡΠ½ΠΎΠ³ΠΎ ΡΡΠ½ΠΊΡΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠ³ΠΎ Π½Π°Π·Π½Π°ΡΠ΅Π½ΠΈΡ ΠΈ Π½Π° ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΡ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΉ ΠΈΡ
ΠΈΠ·Π³ΠΎΡΠΎΠ²Π»Π΅Π½ΠΈΡ, Π°ΠΊΡΡΠ°Π»ΡΠ½Ρ. ΠΠ°ΡΡΠ°Π»ΠΈΠ½-1,5-Π΄ΠΈΠ°ΠΌΠΈΠ½ ΡΠΈΡΠΎΠΊΠΎ ΠΏΡΠΈΠΌΠ΅Π½ΡΠ΅ΡΡΡ Π² ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΠ²Π΅ ΡΠ»ΠΎΠΆΠ½ΡΡ
ΠΏΡΠΎΠΌΠ΅ΠΆΡΡΠΎΡΠ½ΡΡ
ΠΏΠΎΠ»ΡΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ², ΠΊΡΠ°ΡΠΈΡΠ΅Π»Π΅ΠΉ, Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
Π΄ΠΎΠ±Π°Π²ΠΎΠΊ ΠΊ ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ°ΠΌ, ΡΠ°ΡΠΌΠ°ΡΠ΅Π²ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΡΠ΅ΠΏΠ°ΡΠ°ΡΠΎΠ², ΠΏΠ΅ΡΡΠΈΡΠΈΠ΄ΠΎΠ² ΠΈ Π΄Ρ. ΠΠ°ΡΡΠ°Π»ΠΈΠ½-1,5-Π΄ΠΈΠ°ΠΌΠΈΠ½ ΡΠ²Π»ΡΠ΅ΡΡΡ Π΄ΠΎΡΡΡΠΏΠ½ΡΠΌ ΠΈΡΡ
ΠΎΠ΄Π½ΡΠΌ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠ΅ΠΌ Π΄Π»Ρ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ Π½Π° Π΅Π³ΠΎ ΠΎΡΠ½ΠΎΠ²Π΅ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΡΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ ΠΏΡΠΈ ΡΠΎΠ·Π΄Π°Π½ΠΈΠΈ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² ΠΈ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈ Π°ΠΊΡΠΈΠ²Π½ΡΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ. ΠΠ·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΠ΅ΠΌ Π½Π°ΡΡΠ°Π»ΠΈΠ½-1,5-Π΄ΠΈΠ°ΠΌΠΈΠ½Π° Ρ Π·Π°ΠΌΠ΅ΡΠ΅Π½Π½ΡΠΌΠΈ Π°Π»ΡΠ΄Π΅Π³ΠΈΠ΄Π°ΠΌΠΈ ΠΈΠ»ΠΈ Π±Π΅Π½Π·Π°Π»ΡΠ΄Π΅Π³ΠΈΠ΄Π°ΠΌΠΈ Π²Π°Π½ΠΈΠ»ΠΈΠ½ΠΎΠ²ΠΎΠ³ΠΎ ΡΡΠ΄Π° Π² ΡΡΠ΅Π΄Π΅ ΠΊΠΈΠΏΡΡΠ΅Π³ΠΎ Π°Π±ΡΠΎΠ»ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠ°Π½ΠΎΠ»Π° Π² ΠΏΡΠΈΡΡΡΡΡΠ²ΠΈΠΈ ΠΊΠ°ΡΠ°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ² Π»Π΅Π΄ΡΠ½ΠΎΠΉ ΡΠΊΡΡΡΠ½ΠΎΠΉ ΠΊΠΈΡΠ»ΠΎΡΡ Π±ΡΠ»ΠΈ ΡΠΈΠ½ΡΠ΅Π·ΠΈΡΠΎΠ²Π°Π½Ρ (E,E)-Π°Π·ΠΎΠΌΠ΅ΡΠΈΠ½Ρ Ρ Π²ΡΡ
ΠΎΠ΄Π°ΠΌΠΈ 75β87 %
Group measure space decomposition of II_1 factors and W*-superrigidity
We prove a "unique crossed product decomposition" result for group measure
space II_1 factors arising from arbitrary free ergodic probability measure
preserving (p.m.p.) actions of groups \Gamma in a fairly large family G, which
contains all free products of a Kazhdan group and a non-trivial group, as well
as certain amalgamated free products over an amenable subgroup. We deduce that
if T_n denotes the group of upper triangular matrices in PSL(n,Z), then any
free, mixing p.m.p. action of the amalgamated free product of PSL(n,Z) with
itself over T_n, is W*-superrigid, i.e. any isomorphism between L^\infty(X)
\rtimes \Gamma and an arbitrary group measure space factor L^\infty(Y) \rtimes
\Lambda, comes from a conjugacy of the actions. We also prove that for many
groups \Gamma in the family G, the Bernoulli actions of \Gamma are
W*-superrigid.Comment: Final version. Some extra details have been added to improve the
expositio
Generic representations of abelian groups and extreme amenability
If is a Polish group and is a countable group, denote by
\Hom(\Gamma, G) the space of all homomorphisms . We study
properties of the group \cl{\pi(\Gamma)} for the generic \pi \in
\Hom(\Gamma, G), when is abelian and is one of the following
three groups: the unitary group of an infinite-dimensional Hilbert space, the
automorphism group of a standard probability space, and the isometry group of
the Urysohn metric space. Under mild assumptions on , we prove that in
the first case, there is (up to isomorphism of topological groups) a unique
generic \cl{\pi(\Gamma)}; in the other two, we show that the generic
\cl{\pi(\Gamma)} is extremely amenable. We also show that if is
torsion-free, the centralizer of the generic is as small as possible,
extending a result of King from ergodic theory.Comment: Version
Π‘ΠΈΠ½ΡΠ΅Π· ΠΌΠ΅ΡΠΈΠ»ΠΎΠ²ΡΡ ΡΡΠΈΡΠΎΠ² ( E, S)-2-Π°ΡΠΈΠ»ΠΈΠ΄Π΅Π½Π°ΠΌΠΈΠ½ΠΎ-4-ΠΌΠ΅ΡΠΈΠ»Π²Π°Π»Π΅ΡΠΈΠ°Π½ΠΎΠ²ΡΡ ΠΊΠΈΡΠ»ΠΎΡ
By the reaction of L-leucine methyl ester hydrochloride with vanniline and vanillale ethers or esters, corresponding methyl esters of (Π,S)-2-arylidenamino-4-methylpentanoic acids have been synthesised.ΠΠΎΠ½Π΄Π΅Π½ΡΠ°ΡΠΈΠ΅ΠΉ Π·Π°ΠΌΠ΅ΡΠ΅Π½Π½ΡΡ
Π±Π΅Π½Π·Π°Π»ΡΠ΄Π΅Π³ΠΈΠ΄ΠΎΠ² Π²Π°Π½ΠΈΠ»ΠΈΠ½ΠΎΠ²ΠΎΠ³ΠΎ ΡΡΠ΄Π° Ρ Π³ΠΈΠ΄ΡΠΎΡ
Π»ΠΎΡΠΈΠ΄ΠΎΠΌ ΠΌΠ΅ΡΠΈΠ»ΠΎΠ²ΠΎΠ³ΠΎ ΡΡΠΈΡΠ° L-Π»Π΅ΠΉΡΠΈΠ½Π° Π² ΠΏΡΠΈΡΡΡΡΡΠ²ΠΈΠΈ Π³ΠΈΠ΄ΡΠΎΠΊΠ°ΡΠ±ΠΎΠ½Π°ΡΠ° Π½Π°ΡΡΠΈΡ (ΠΏΡΠΈ ΡΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠΈ ΡΠ΅Π°Π³Π΅Π½ΡΠΎΠ², ΡΠ°Π²Π½ΠΎΠΌ 1:1:1) Π±ΡΠ»ΠΈ ΡΠΈΠ½ΡΠ΅Π·ΠΈΡΠΎΠ²Π°Π½Ρ Ρ
ΠΈΡΠ°Π»ΡΠ½ΡΠ΅ (Π,S)-Π°Π»ΠΊΠΈΠ»Π°ΡΠΎΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ Π°Π·ΠΎΠΌΠ΅ΡΠΈΠ½Ρ (ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΡ Π¨ΠΈΡΡΠ°), ΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΠ΅ ΠΏΡΠΎΡΡΡΠ΅ ΠΈ ΡΠ»ΠΎΠΆΠ½ΠΎΡΡΠΈΡΠ½ΡΠ΅ Π³ΡΡΠΏΠΏΡ
Anticorrosion properties of manganese-containing complex oxides, obtained by stoneware method
Splitting problem for WKB asymptotics in a nonresonant case and the reduction method for linear systems
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