Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Heong-Sub Oh"'
Publikováno v:
Inorganic chemistry. 58(23)
Herein, we report titanium-organic gels (TOGs) as new Ti-oxo-based materials that exhibit stimuli-responsive sol-gel transformations and hierarchical porosity upon the removal of solvent molecules. Heating a solution of Ti-oxo clusters and pyromellit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::416dda7cea65c1419106f05549a2f29b
https://pubmed.ncbi.nlm.nih.gov/31743012
https://pubmed.ncbi.nlm.nih.gov/31743012
Autor:
Chang-Won Lee, Byoung Lyong Choi, Paras N. Prasad, Xin Liu, Augustine Urbas, Mark T. Swihart, Wing Cheung Law, Heong Sub Oh, Guang S. He, Hongsub Jee, Alexander Baev
Publikováno v:
Advanced Materials. 26:1607-1611
The design, synthesis, and supramolecular organization of a nanocomposite in which nanoscale excitonic interactions between quantum dots and the chiral polymer dramatically enhance the optical activity is reported. This material is highly suitable fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3565a2f40eb9bdc417076c119d7c3529
https://doi.org/10.1002/adma.201304071
https://doi.org/10.1002/adma.201304071
Publikováno v:
Advanced Functional Materials. 22:5074-5080
Materials with large optical activity at visible wavelengths are of great interest in photonics, particularly as one of the routes towards optical metamaterials. Here, dramatic structural enhancement of the optical activity of chiral poly(fluorene-al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d150ef597ee1dce4f9c12ab7faad025
https://doi.org/10.1002/adfm.201201273
https://doi.org/10.1002/adfm.201201273
Autor:
Hongsub Jee, Min Ju Cho, Paras N. Prasad, Jangwon Seo, Mai Ha Hoang, Heong Sub Oh, Won Jin Kim, Kyung Hwan Kim, Donghoon Choi
Publikováno v:
Solar Energy Materials and Solar Cells. 98:71-77
Tricyanofuran-based small molecules were synthesized through Knoevenagel reaction with formyl heteroaromatic donating moieties and 2-cyanomethylene-3-cyano-4,5,5-trimethyl-2,5-dihydrofuran (TCF) as a strong acceptor. UV–vis absorption demonstrated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0be5ad1558105510670bfb16e86b1df
https://doi.org/10.1016/j.solmat.2011.09.008
https://doi.org/10.1016/j.solmat.2011.09.008
Autor:
Heong Sub Oh, Jin Kun Cha
Publikováno v:
Tetrahedron: Asymmetry. 14:2911-2917
A facile radical cyclization–fragmentation sequence of ω-haloalkyl-tethered spirocyclobutanones, which are readily available by the Kulinkovich cyclopropanation of cycloalkene carboxylates and subsequent electrophilic addition to haloalkyl acetals
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::606ba78db95ce7ee6c5f948abe8ea837
https://doi.org/10.1016/j.tetasy.2003.07.011
https://doi.org/10.1016/j.tetasy.2003.07.011
Publikováno v:
Journal of the American Chemical Society. 132:17346-17348
Materials with large chiral optical activity at visible wavelengths are of great interest in photonics, particularly as a route to chiral optical metamaterials. Here, we demonstrate the plasmonic enhancement of the chiral optical activity of chiral p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c476fca84bb5f13394cae7fc39a8f85
https://doi.org/10.1021/ja107064a
https://doi.org/10.1021/ja107064a
Publikováno v:
Tetrahedron Letters. 41:5069-5072
1,3-Oxazolidines 9 were synthesized by using a solid support. Regioselective ring opening of resin-bound epoxy ether 3 with ammonium chloride followed by nucleophilic substitution with sodium azide gave azido alcohol 7. Reduction of 7 provided 1-amin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::393ccadbf0f47fef99cb041b5effc19c
https://doi.org/10.1016/s0040-4039(00)00775-9
https://doi.org/10.1016/s0040-4039(00)00775-9
Autor:
Heong Sub Oh, Paras N. Prasad, Raquel Aparecida Domingues, Teresa D. Z. Atvars, Leni Akcelrud, Paula C. Rodrigues, Jangwon Seo, Roberto Mendonça Faria, Isabel R. Grova, Douglas José Coutinho
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
The synthesis and photophysical characterization of a PPV-type copolymer containing a fluorene derivative alternated with thiophene units is presented: poly(9,9’-dioctylfluorene-thiophene) (LAPPS29). Photophysical studies demonstrated that in the s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37c0be47bd0ca6498900c07879ee59b0
Publikováno v:
Advances in OptoElectronics, Vol 2012 (2012)
A new approach to metamaterials is presented that involves laser-based patterning of novel chiral polymer media, wherein chirality is realized at two distinct length scales, intrinsically at the molecular level and geometrically at a length scale on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f110e6d7587801a2f2ef630662a0e6f9
Publikováno v:
Optics letters. 36(22)
A chemically modified poly(fluorene-alt-benzothiadiazole) (PFBT) polymer film is reported to exhibit high two-photon absorbing capability and chemical/physical stability upon the action of high-power laser pulses of ∼780 nm wavelength and ∼160 fs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fa705819fd93565582dd66baf6e1cec
https://pubmed.ncbi.nlm.nih.gov/22089587
https://pubmed.ncbi.nlm.nih.gov/22089587