Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Yasushi Umemura"'
Publikováno v:
Bulletin of the Chemical Society of Japan. 94:377-381
Surface pressure versus molecular area (π-A) curves were measured on pure water as a subphase for a series of N,N′-diperfluoroalkanoyl-1,2(R,R)-diaminocyclohexanes. A molecule is denoted as RR-CFn,...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fabe591f54c7f2fe872baa7205c032b5
https://doi.org/10.1246/bcsj.20200245
https://doi.org/10.1246/bcsj.20200245
Publikováno v:
Chemical Communications. 56:12825-12828
A ruthenium complex showing multi-stimuli-responsive isomerization was synthesized. The catalytic activity of this complex toward water oxidation showed responses to visible-light irradiation and heat due to photoisomerization and thermal back-isomer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38f18633a1d1e9c2fb82cfe0bdfa19e3
https://doi.org/10.1039/d0cc04940a
https://doi.org/10.1039/d0cc04940a
Autor:
Masanari Hirahara, Yasushi Umemura
Publikováno v:
Inorganic chemistry. 60(17)
Photosubstitution reactions of cis-[Ru(bpy)2(MeCN)2]2+ with a pyrazole ligand (pzH) were studied under various conditions toward the development of a photochemical synthetic route to polypyridyl ruthenium complexes (bpy = 2,2'-bipyridine). In the abs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1892a40d36103d3c60545d4ca4387365
https://pubmed.ncbi.nlm.nih.gov/34492768
https://pubmed.ncbi.nlm.nih.gov/34492768
Publikováno v:
Chemical Physics. 517:85-90
Optical second harmonic generation (SHG) signals from a cyanine dye during compression of a monolayer in a Langmuir-Blodgett trough were measured to investigate the mean tilt angle of the dye corresponding to the formation of an H-band. The pressure-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c10c676995fe3d0b7fe538b925108e02
https://doi.org/10.1016/j.chemphys.2018.09.028
https://doi.org/10.1016/j.chemphys.2018.09.028
Publikováno v:
Inorganic chemistry. 59(16)
Photosubstitution reactions of ruthenium complexes with pyrazole ligands, cis-[Ru(bpy)2(pzH)2]2+ (1a), cis-[Ru(bpy)2(pz)(pzH)]+ (1b), and cis-[Ru(bpy)2(pz)2]0 (1c) (pzH = pyrazole, bpy = 2,2′-bipyr...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa2237eb01d59993a40e03ef36b03a32
https://pubmed.ncbi.nlm.nih.gov/32799483
https://pubmed.ncbi.nlm.nih.gov/32799483
Autor:
Yasushi Umemura, Masanari Hirahara
Publikováno v:
Thin Solid Films. 642:377-383
A solution of the water-insoluble quaternary alkylammonium salt with the long hydrocarbon chain, CH3(CH2)29N(CH3)3·I (C30TMA+·I−), was spread on water and clay mineral (montmorillonite) dispersion surfaces to investigate film formation behavior o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fc4724ffbc9283d5536f53990e29a86
https://doi.org/10.1016/j.tsf.2017.09.058
https://doi.org/10.1016/j.tsf.2017.09.058
Autor:
Tatsuto Yui, Kosuke Takahashi, Kenji Saito, Taisei Sato, Masayuki Yagi, Masanari Hirahara, Shunsuke Watabe, Yasushi Umemura, Sho Nagai
Publikováno v:
Inorganic Chemistry. 56:10235-10246
proximal,proximal-(p,p)-[RuII2(tpy)2LXY]n+ (tpy = 2,2′;6′,2″-terpyridine, L = 5-phenyl-2,8-di-2-pyridyl-1,9,10-anthyridine, and X and Y = other coordination sites) yields the structurally and functionally unusual RuII(μ-OH)RuII core, which is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d2dd6a02072b9918765188dd3a2a1d9
https://doi.org/10.1021/acs.inorgchem.7b00978
https://doi.org/10.1021/acs.inorgchem.7b00978
Publikováno v:
RSC advances. 9(4)
A series of ruthenium complexes with chloro-substituted bidentate ligands, proximal-[Ru(tpy)(Cl-pyqu)L]n+ [n = 1 for L = Cl, and n = 2 for L = OH2, tpy = 2,2′;6′,2′′-terpyridine, pyqu = 2-(2′-pyridyl)quinoline] were synthesized and their re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe018bf9561ed85a81e40f2fa38fe577
https://pubmed.ncbi.nlm.nih.gov/35516112
https://pubmed.ncbi.nlm.nih.gov/35516112
Autor:
Yasushi Umemura
Many functional materials often work in films. Particularly, some two-dimensional clay minerals can be exfoliated into their elemental layers, and the layers can be reassembled together with other materials in the films at nanometre levels, which bri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a7371b7e3152de851e761cc69f425ad
https://doi.org/10.1016/b978-0-08-102432-4.00012-3
https://doi.org/10.1016/b978-0-08-102432-4.00012-3
Autor:
Yasushi Umemura, Masanari Hirahara
Publikováno v:
Langmuir. 31:8346-8353
In an aqueous clay mineral (montmorillonite) dispersion at a low concentration, isolated clay nanosheets with negative charges were suspended. When a solution of amphiphilic octadecylammonium chloride (ODAH(+)Cl(-)) was spread on an air-dispersion in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9882c2348008a64a4dd33220557e283
https://doi.org/10.1021/acs.langmuir.5b01401
https://doi.org/10.1021/acs.langmuir.5b01401