A5082161689- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Crystallography and molecular interactions
- Luminescence and Fluorescent Materials
- Molecular Sensors and Ion Detection
- Aluminum Alloys Composites Properties
- Synthesis and Properties of Aromatic Compounds
- Porphyrin and Phthalocyanine Chemistry
- Analytical Chemistry and Chromatography
- Molecular spectroscopy and chirality
- Metal Alloys Wear and Properties
- Advanced ceramic materials synthesis
- Powder Metallurgy Techniques and Materials
- Supramolecular Self-Assembly in Materials
- Metal and Thin Film Mechanics
- Microstructure and Mechanical Properties of Steels
- Supramolecular Chemistry and Complexes
- Fluorine in Organic Chemistry
- Microstructure and mechanical properties
- Aluminum Alloy Microstructure Properties
- Tribology and Wear Analysis
- Advanced materials and composites
- Metallurgy and Material Science
- Advanced Surface Polishing Techniques
- Metallurgy and Material Forming
Kansai University
2015-2024
Japanese Red Cross Nagoya Daiichi Hospital
2024
Yamagata University
2016-2024
Osaka University
2018
REVA University
2016
Kindai University
2007-2014
Kyoto University
2009-2013
Japan Science and Technology Agency
2001-2012
Wakamoto Pharmaceutical (Japan)
2012
Waseda University
2012
Journal Article Raman diagnosis of nucleic acid structure: sugar-puckering and glycosidic conformation in the guanosine moiety Get access Yoshifumi Nishimura, Nishimura Faculty Pharamaceutical Sciences *University TokyoHongo, Bunkyo-ku Search for other works by this author on: Oxford Academic PubMed Google Scholar Masamichi Tsuboi, Tsuboi Toru Nakano, Nakano +Mitsubishi-Kasei Institute Life Science11 Minamiooya, Machida, Tokyo, Japan Shigesada Higuchi, Higuchi Tomohiro Sato, Sato Toshio...
An intense terahertz pulse has the potential to control polarization of ferroelectrics at subpicosecond time scale. In some ferroelectrics, it been reported that irradiation with a on order 100 kV/cm modulates in manner proportional electric field. If stronger field is applied, may be possible alter nonlinearly or even cause disappear. However, such attempts have not date. this paper, we aim ferroelectric by irradiating an organic molecular compound tetrathiafulvalene-<a:math...
Abstract The solid‐state chiral optical properties of a 4‐(2‐arylethynyl)‐benzoic acid/amine supramolecular organic fluorophore can be controlled by changing the arylethynyl group achiral acid component molecule rather than chirality amine molecule.
The synthesis and coordination chemistry of two chiral tetradentate pyridylimine Schiff base ligands are reported. were prepared by the nucleophilic displacement both bromides 1,3-bis(bromomethyl)benzene (2) or 3,5-bis(bromomethyl)toluene (3) anion (S)-valinol, followed capping amine groups with pyridine-2-carboxaldehyde. Both react CoCl(2) NiCl(2) to give [M(2)L(2)Cl(2)](2+) complexes. Remarkably, neither fluoride nor bromide ions can act as bridging ligands. formation...
A genuinely supramolecular approach to transition-metal helicates is presented in which eight simple components (four ions and four small molecules) self-assemble form dinuclear double helicates, where the ligand strands are built up through hydrogen-bonding interactions (see picture). The self-assembly process was found be highly stereoselective. Supporting information for this article available on WWW under http://www.wiley-vch.de/contents/jc_2002/2004/z52833_s.pdf or from author. Please...
The synthesis and characterization of the bis(bidentate) Schiff-base ligand [(R)-2] formed by condensation reaction (R)-1,1'-binaphthyl-2,2'-diamine [(R)-BINAM] with pyridine-2-carboxaldehyde is presented. coordination chemistry (R)-2 Ni(ClO4)2·6H2O, Co(ClO4)2·6H2O, CuCl2, CuSO4 has been investigated. Reaction first two metal salts leads to complexes type [M((R)-4)2](ClO4)2 (M = NiII, CoII), where (R)-4 a tridentate resulting from hydrolytic cleavage one pyridyl groups (R)-2. Both were...
Charge-transfer (CT) complexes composed of 1,1‘-bi-2-naphthol derivatives as an electron donor and p-benzoquinone acceptor serve excellent host system for visual molecular recognition. This is because they form inclusion crystals with guest aromatic compounds which display remarkably different colors depending on the structure component molecules method crystallization (i.e., solution or solid cogrinding crystals).
Journal Article Structure-spectrum correlations in nucleic acids. I. Raman lines the 600–700 cm −1 range of guanosine residue Get access Yoshifumi Nishimura, Nishimura Search for other works by this author on: Oxford Academic PubMed Google Scholar Masamichi Tsuboi, Tsuboi Tomohiro Sato *Shionogi Research Laboratory, Shionogi & Co. Ltd.Fukushima-ku, Osaka, Japan Nucleic Acids Research, Volume 12, Issue 17, 11 September 1984, Pages 6901–6908, https://doi.org/10.1093/nar/12.17.6901 Published:...
A solid-state fluorescence sensing system was created by using a chiral supramolecular organic fluorophore having channel-like cavity composed of (1R,2S)-2-amino-1,2-diphenylethanol as molecule and 2-anthracenecarboxylic acid molecule.
Abstract A solid‐state fluorescent host system was created by self‐assembly of a 2 1 ‐helical columnar organic fluorophore composed (1 R ,2 S )‐2‐amino‐1,2‐diphenylethanol and 1‐pyrenecarboxylic acid. This has characteristic hydrogen‐ ionic‐bonded network. Channel‐like cavities are formed this column, various guest molecules can be included tuning the packing column. Moreover, fluorescence change according to molecules. occurs because in relative arrangement pyrene rings as they adjust...
New adduct crystals were obtained by simply mixing/grinding component of bis-beta-naphthol (BN) derivatives with benzoquinone (BQ) under solvent-free conditions. Chiral recognition was found to operate during this process and either a racemic or chiral crystal BN derivative produced an BQ solid-state crystallization. The chirality preference changed subtly according the molecular structure derivative. Even in circumstances which no formed, addition third component, such as naphthalene,...
Abstract Molecular recognition in solid‐state crystallization involving derivatives of 1,1′‐bi‐2‐naphthol and benzoquinone was studied. No adduct crystal formed when crystals biphenyl were further added as a third component to grinding mixture chiral benzoquinone, which by itself did not form an adduct. This contrasts with the case addition naphthalene same produced new red crystal. Adduct formations using 6,6′‐dibromo‐1,1′‐bi‐2‐naphthol place also In this case, adducts either or without...
As the first non-peptide endothelin receptor antagonist from a higher plant, new triterpenoid, myriceric acid A (50-235) (1) was isolated bayberry, Myrica cerifera. Myriceric inhibited not only an endothelin-1-induced increase in cytosolic free Ca2+ concentration (IC50 = 11 +/- 2 nM) but [125I]endothelin-1 binding rat aortic smooth muscle cells (Ki 66 15 nM). Two related triterpenoids, C (6), and D (8), were also isolated. Furthermore, chemical modification of these natural products led to...
A novel tunable multi-chiral supramolecular host system was developed from non-chiral dicarboxylic acid and (1R, 2R)-diphenylethylenediamine via chirality transfer, which enabled highly efficient optical resolution of secondary alkyl alcohols by simple crystallization compounds alcohol solution.