Zobrazeno 1 - 10
of 6 796
pro vyhledávání: '"optical activity"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract The construction of covalent organic frameworks with special geometery and optical properties is of high interest, due to their unique physicochemical and biological properties. In this work, we report on a new method for the construction of
Externí odkaz:
https://doaj.org/article/bfbb156debb942adb4e65056c7de85db
Publikováno v:
eXPRESS Polymer Letters, Vol 18, Iss 6, Pp 607-622 (2024)
The paper presents the photomechanical effect generated in new azo side-chain polyimides synthesized through a post-functionalization strategy involving the Mitsunobu reaction. Prepared azo polyimide foils were irradiated by a 405 nm diode-laser beam
Externí odkaz:
https://doaj.org/article/023fb639de324288b37ef7341bc2a559
Publikováno v:
Radio Physics and Radio Astronomy, Vol 29, Iss 1, Pp 015-025 (2024)
Subject and Purpose. The research focuses on how the resonance frequencies, the Q-factor of resonances, and the polarization plane rotation ability are influenced by the topology of individual components of a planar-chiral double-layer object consist
Externí odkaz:
https://doaj.org/article/7e73c25fcb97409aa8aeab7e1e6806db
Autor:
Roman P. Terekhov, Anastasiya D. Savina, Denis I. Pankov, Maria D. Korochkina, Amir Taldaev, Liubov M. Yakubovich, Sergey P. Zavadskiy, Anastasiya K. Zhevlakova, Irina A. Selivanova
Publikováno v:
Frontiers in Chemistry, Vol 12 (2024)
Dihydroquercetin (DHQ) is a representative of flavonoids that is available on the market as a food supplement and registered as an active pharmaceutical ingredient. The structure of this compound is characterized by the presence of two chiral centers
Externí odkaz:
https://doaj.org/article/1018de7c81ce4c82bc36889ad00246ed
Autor:
Tomaž Kotnik, Svit Menart, Žan Adam, Jan Bitenc, Luka Ciber, Uroš Grošelj, Nejc Petek, Bogdan Štefane, Jurij Svete, Boštjan Genorio
Publikováno v:
Polymers, Vol 16, Iss 19, p 2700 (2024)
In the search for novel polymeric molecules that could be used as electroactive materials, seven novel polyenaminones were prepared in high yields by the transaminative polymerization of resorcinol-derived bis-enaminones with m- and p-phenylenediamin
Externí odkaz:
https://doaj.org/article/7b9f29bfcb8b42d1b5a270aa9fea0edc
Akademický článek
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Publikováno v:
Advanced Science, Vol 11, Iss 1, Pp n/a-n/a (2024)
Abstract Raman optical activity (ROA) is commonly measured with green light (532 nm) excitation. At this wavelength, however, Raman scattering of europium complexes is masked by circularly polarized luminescence (CPL). This can be avoided using near
Externí odkaz:
https://doaj.org/article/b3899d74ae4249a6957bb02a0e0e9731
Autor:
A. M. Khabibrakhmanova, E. S. Rabbanieva, D. P. Gerasimova, O. A. Lodochnikova, L. Z. Latypova, A. R. Kurbangalieva
Publikováno v:
Učënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki, Vol 165, Iss 1 (2023)
Novel disulfinyl derivatives based on 3,4-dichloro-2(5H)-furanone, aliphatic dithiols, and monoterpene alcohols were synthesized. Chiral bis-thioethers in the molecules of which the dithiol fragment links two five-membered cycles at C4 atoms were obt
Externí odkaz:
https://doaj.org/article/b60ef11e40d74d8abbbd259e93bfc2b8
Autor:
Rasmiah Saad A. Almufarij, Alaa El-Deen Ali, Mohamed Elsayed Elba, Howida Eid Okab, Ollaa Moftah Mailoud, Hamida Abdel-Hamid, Howida Abouel Fetouh Elsayed
Publikováno v:
Applied Nano, Vol 4, Iss 2, Pp 115-137 (2023)
The purpose of this study is to modify all physicochemical properties of glycine–copper sulphate single crystals, such as crystal habits, molar mass, thermal stability, optical activity, and electrical properties. The novelty of this study is growt
Externí odkaz:
https://doaj.org/article/d003455d59694434bf4cf73435a69840
Akademický článek
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