Zobrazeno 1 - 10
of 321
pro vyhledávání: '"Junseong Lee"'
Autor:
Doan Thanh Trung, Eugenie Uwiragiye, Tran Thi Lan, John G. Fisher, Jong-Sook Lee, Jungwi Mok, Junseong Lee, Furqan Ul Hassan Naqvi, Jae-Hyeon Ko
Publikováno v:
Materials, Vol 17, Iss 17, p 4195 (2024)
In this study, single crystals of (K1−xNax)NbO3 are grown by the self-flux crystal growth method and their phase transitions are studied using a combination of Raman scattering and impedance spectroscopy. X-ray diffraction shows that single crystal
Externí odkaz:
https://doaj.org/article/82d053d444d1444c9493daa143cac52c
Autor:
Jinyoung Oh, Yongmoon Lee, Gahee Noh, Dongcheol Park, Hohjai Lee, Junseong Lee, Changsoon Kim, Jiwon Seo
Publikováno v:
Small Structures, Vol 5, Iss 2, Pp n/a-n/a (2024)
Controlling chromophore chirality in three‐dimensional space is crucial for understanding the structure–chiroptical relationship. Such control enables the prediction of ideal materials for use in chiral photonic applications. In this study, optic
Externí odkaz:
https://doaj.org/article/14a38abdf48b4c57b8a75bf817f6b699
Autor:
Thanh Trung Doan, John G. Fisher, Jong-Sook Lee, Huyen Tran Tran, Jie Gao, Jungwi Mok, Junseong Lee, Andreja Benčan, Goran Dražić, Syed Bilal Junaid, Jae-Hyeon Ko
Publikováno v:
Inorganics, Vol 12, Iss 6, p 151 (2024)
KNbO3 single crystals are grown by the self-flux method using K2CO3 as a flux, but often suffer from discolouration. In this work, KNbO3 single crystals were grown by the flux method using KBO2 as a flux. KNbO3 powder was prepared by the solid-state
Externí odkaz:
https://doaj.org/article/b1ddd11c4b514049b8443fbd965ae0a4
Publikováno v:
IUCrData, Vol 9, Iss 1, p x240059 (2024)
A new square-planar palladium complex salt hydrate, (C9H12NO)2[PdCl4]·0.5H2O, has been characterized. The asymmetric unit of the complex salt comprises two [PdCl4]2− dianions, four 2-hydroxy-2,3-dihydro-1H-inden-1-aminium cations, each derived fro
Externí odkaz:
https://doaj.org/article/6bfbe6618bf0441bb19420afabe13138
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 9, Pp 887-890 (2021)
The title compound, C18H12N2O2, was synthesized from a dinitrobiphenylbenzene derivative using a novel modification of the Cadogan reaction. The reaction has several possible ring-closed products and the title compound was separated as the major prod
Externí odkaz:
https://doaj.org/article/904027c187aa40cca6b432b450234395
Publikováno v:
Materials, Vol 16, Iss 10, p 3638 (2023)
(K0.5Na0.5)NbO3-based piezoelectric ceramics are of interest as a lead-free replacement for Pb(Zr,Ti)O3. In recent years, single crystals of (K0.5Na0.5)NbO3 with improved properties have been grown by the seed-free solid-state crystal growth method,
Externí odkaz:
https://doaj.org/article/9f861078320d459da2379a405bfe6a7c
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 75, Iss 12, Pp 1844-1847 (2019)
The title compound, C20H22N8O2, was synthesized by the coupling reaction of a sodium tetrazolate salt and dibromobutane in a molar ratio of 2:1. The reaction can produce several possible regioisomers and the title compound was separated as the major
Externí odkaz:
https://doaj.org/article/176d6315b17546eaaa643cd93e44ed37
Autor:
Sun Mi Jeong, Ju Yong Park, Yong Bin Hyun, Jun Won Baek, Hagjun Kim, Yeokwon Yoon, Sangchul Chung, Junseong Lee, Bun Yeoul Lee
Publikováno v:
Catalysts, Vol 12, Iss 3, p 283 (2022)
We synthesized a series of Me2Si-bridged ansa-zirconocene complexes coordinated by thiophene-fused cyclopentadienyl and fluorenyl ligands (Me2Si(2-R1-3-R2-4,5-Me2C7S)(2,7-R32C13H6))ZrMe2 (R1 = Me or H, R2 = H or Me, R3 = H, tBu, or Cl) for the subseq
Externí odkaz:
https://doaj.org/article/81146bc83e094cc988eade5d5ebf5ac8
Autor:
Hyun-Ju Lee, Jun-Won Baek, Yeong-Hyun Seo, Hong-Cheol Lee, Sun-Mi Jeong, Junseong Lee, Chong-Gu Lee, Bun-Yeoul Lee
Publikováno v:
Molecules, Vol 26, Iss 9, p 2827 (2021)
Homogeneous olefin polymerization catalysts are activated in situ with a co-catalyst ([PhN(Me)2-H]+[B(C6F5)4]− or [Ph3C]+[B(C6F5)4]−) in bulk polymerization media. These co-catalysts are insoluble in hydrocarbon solvents, requiring excess co-cata
Externí odkaz:
https://doaj.org/article/e3279d150985493a97aaf539b8cb8a24
Publikováno v:
ACS Omega, Vol 2, Iss 9, Pp 6259-6269 (2017)
Externí odkaz:
https://doaj.org/article/c8ded9b71eae4e259b88a8c16fd36a85