A5073854687- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Zeolite Catalysis and Synthesis
- Chemical Synthesis and Characterization
- Crystallography and molecular interactions
- Mesoporous Materials and Catalysis
- Metal complexes synthesis and properties
- Metal-Organic Frameworks: Synthesis and Applications
- Molecular Sensors and Ion Detection
- Lanthanide and Transition Metal Complexes
- Magnetism in coordination complexes
- Crystal Structures and Properties
- Supramolecular Chemistry and Complexes
- Radioactive element chemistry and processing
- Polysaccharides Composition and Applications
- Crystal structures of chemical compounds
- Luminescence and Fluorescent Materials
- Polysaccharides and Plant Cell Walls
- Synthesis and Catalytic Reactions
- Inorganic and Organometallic Chemistry
- Polyoxometalates: Synthesis and Applications
- Catalytic Processes in Materials Science
- Metal-Catalyzed Oxygenation Mechanisms
- Microbial Metabolites in Food Biotechnology
- Dendrimers and Hyperbranched Polymers
Kumamoto University
2017-2025
Seoul National University
2009-2024
Thammasat University
2023
The Barbara Ann Karmanos Cancer Institute
2023
Wayne State University
2023
Graduate School USA
2018-2021
The University of Western Australia
2003-2019
Kyung Hee University
2019
Qassim University
2018
Kosin University
2008-2017
A new chemosensor-based approach to the detection of nitroaromatics is described. It involves analyte-induced quenching excimer emission a dipyrenyl calix[4]arene (L). The chemical and photophysical properties complexes formed between L mono-, di-, trinitrobenzene, di- trinitrotoluene were studied in acetonitrile chloroform by using (1)H NMR, UV/Vis, fluorescence spectroscopy. Fluorescence spectroscopy revealed that trinitroaromatics engendered largest response among various substrates...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthetic, Structural, and Spectroscopic Studies on Solids Containing Tris(dipicolinato) Rare Earth Anions Transition or Main Group Metal CationsPhilippa A. Brayshaw, Jean-Claude G. Buenzli, Pascal Froidevaux, Jack M. Harrowfield, Yang Kim, Alexander N. SobolevCite this: Inorg. Chem. 1995, 34, 8, 2068–2076Publication Date (Print):April 1, 1995Publication History Published online1 May 2002Published inissue 1 April...
The gut microbiota is important for maintaining the integrity of intestinal barrier, promoting immunological tolerance and carrying out metabolic activities that have not evolved in hosts. Intestinal dysbiosis associated with chronic kidney disease probiotic supplementation has been shown to be beneficial. However, it known whether microorganisms‑specifically, lactic acid bacteria (LAB) can protect against acute injury (AKI). To address this issue, present study investigated effects...
A single crystal of zeolite X was 39% overexchanged with aqueous Pb2+ at pH 6.0. After dehydration 420 °C and 2 × 10-6 Torr, its structure determined by X-ray diffraction techniques in the cubic space group Fd3̄ 21 (a = 25.238(5) Å). The structure, Pb64O32−Si100Al92O384 per unit cell, refined to final error indices R1 0.080 R2 0.070 486 reflections for which I > 3σ(I). Pb4+ formed upon evacuation elevated temperature a reaction may be written, as 64 + 36 OH- → 18 8 Pb4O4 14 H2 4 H2O. Pb ions...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure of a very small piece silver metal. The octahedral (Ag6) molecule. Two crystal structures partially decomposed vacuum-dehydrated fully silver(1+) ion-exchanged zeolite AYang Kim and Karl SeffCite this: J. Am. Chem. Soc. 1977, 99, 21, 7055–7057Publication Date (Print):October 1, 1977Publication History Published online1 May 2002Published inissue 1 October...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe octahedral hexasilver molecule. Seven crystal structures of variously vacuum-dehydrated fully silver(1+)-exchanged zeolite AYang Kim and Karl SeffCite this: J. Am. Chem. Soc. 1978, 100, 22, 6989–6997Publication Date (Print):October 1, 1978Publication History Published online1 May 2002Published inissue 1 October 1978https://pubs.acs.org/doi/10.1021/ja00490a035https://doi.org/10.1021/ja00490a035research-articleACS PublicationsRequest reuse...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe hexasilver molecule stabilized by coordination to six silver ions. The structure of (Ag.+-.)6(Ag6). crystal an ethylene sorption complex partially decomposed fully Ag.+-.-exchanged zeolite AYang Kim and Karl SeffCite this: J. Am. Chem. Soc. 1978, 100, 1, 175–180Publication Date (Print):January 1978Publication History Published online1 May 2002Published inissue 1 January...
<b>Objective</b> The oral cavity represents an initial entry way for and gut indigenous colonization. Skin-to-skin (STS) care, in which the mother holds diaper clad naked preterm (PT) infant between her breasts, is associated with improved digestive function, decreased stress, survival. This study evaluated development of microbial colonization repertoires health characteristics PT infants or without STS exposure. <b>Methods</b> Saliva from 42 (<32 weeks gestation at birth) was collected...
Iron(III) spin-crossover (SCO) complexes [Fe(qsal)2]BS·MeOH·H2O (1), [Fe(qsal)2](NS)·MeOH (2), [Fe(qnal)2](NS) (3), and [Fe(qnal)2]PS·MeOH·CH2Cl2 (4) (Hqsal, N-(8-quinolinyl)salicylaldimine; Hqnal, N-(8-quinolinyl)-2-hydroxy-1-naphthaldimine; BS, benzenesulfonate; NS, 1-naphthalenesulfonate; PS, 1-pyrenesulfonate) have been synthesized characterized by X-ray structure determinations temperature-dependent magnetic susceptibility measurements. The aromatic counteranions PS can be used for the...
Seven uranyl ion complexes with polycarboxylates have been synthesized under solvo-hydrothermal conditions and in the presence of 1,1ʹ-dimethyl-4,4ʹ-bipyridinium (Me2bipy2+) as structure-directing counterion. Two were obtained phthalate (pht2–), [Me2bipy]2[(UO2)4(pht)4(O)2] (1), which is a discrete, bis(μ3-oxo-bridged) tetranuclear species, {[Me2bipy][(UO2)3(pht)4(H2O)]}n (2), crystallizes monoperiodic coordination polymer. The complex citric acid (H4cit), {[Me2bipy][UO2(Hcit)]2·H2O}n (3),...
Abstract BACKGROUND Understanding the relationship between perceived sensory attributes and measurable instrumental properties is crucial for replicating distinct textures of meat in plant‐based analogs. In this study, patties composed textured vegetable protein (TVP) 10%, 20% 30% TVPs were substituted with fibers from sweet potato stem (SPS), their texture evaluated. RESULTS Samples SPS showed hardness, cohesiveness chewiness, which are mechanical indicators most similar to those meat. A...
The B ← N Lewis adducts, a series of compounds composed triphenylborane and pyridine/pyrazine derivatives, was investigated, which exhibited both photochromism high-efficiency photothermal conversion, as well being easy to prepare.
The neutral, dizwitterionic dicarboxylate 1,4‐bis(carboxylatomethyl)piperazine (cmpip) was used in the solvo‐hydrothermal synthesis of three uranyl ion complexes. Both [(UO2)2Cl2(pda)(cmpip)2]⋅2H2O (1) and [(UO2)2Cl2(chdc)(cmpip)2] (2) are mixed‐ligand complexes involving additional dianionic dicarboxylates, 1,4‐phenylenediacetate (pda2–) or trans‐1,4‐cyclohexanedicarboxylate (chdc2–), respectively, which crystallize as two‐stranded, ladder‐like monoperiodic coordination polymers. chains 1 2...
Two new dizwitterionic dicarboxylates, E-bis(N-(2’-carboxylatoethyl)pyridinium-4-yl)ethene (L1) and E-bis(3-carboxylatopyridiniomethyl)ethene (L2) have been reacted with uranyl nitrate hexahydrate under solvo-hydrothermal conditions, in the presence of dianionic yielding a series 7...
Abstract The photochromic properties of organic bromide salts prepared from 3,6‐bis(bromomethyl)durene and nicotinic acid/methyl nicotinate were explored. UV exposure induced color changes, revealing distinct photoresponsive rates for each compound. Structural analysis, electron spin resonance (ESR), DFT calculations elucidated the underlying mechanisms, highlighting critical role transfer supramolecular interactions. This study provides structural insights to enhance non‐viologen compounds.
Organic-inorganic hybrid metal halides (OIMHs) are emerging functional materials with diverse applications. However, the exploration of mechanically soft OIMHs remains limited. This study introduces tin(IV) OIMH crystals ( 1 and 1w ),...
The crystal structures of vacuum-dehydrated, fully Mg2+-, Ca2+-, and Ba2+-exchanged zeolite X (Mg46(H2O)4−X, Ca46−X, Ba46−X; = Si100Al92O384) have been determined by single-crystal X-ray diffraction techniques in the cubic space group Fd3̄ at 21 °C (a 24.671(5), 25.024(4), 25.266(5) Å, respectively). Their were refined to final error indices Rw 0.046 with 439 reflections, 0.037 434 0.049 485 respectively, for which I > 3σ(I). In Mg46(H2O)4−X, Mg2+ ions are found four crystallographic sites:...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and structures of two new hydrides nitrogen, triazane (N3H5) cyclotriazane (N3H3). Crystallographic mass spectrometric analyses vacuum-dehydrated partially decomposed fully silver(1+) ion-exchanged zeolite A treated with ammoniaYang Kim, John W. Gilje, Karl SeffCite this: J. Am. Chem. Soc. 1977, 99, 21, 7057–7059Publication Date (Print):October 1, 1977Publication History Published online1 May 2002Published inissue 1 October...
<b>Background</b> Kangaroo Mother Care (KMC) enhances infant and maternal well-being requires maternal-care partnerships (MCP) for implementation. <b>Objective</b> To examine neonatal nurse provider perspectives on the value of KMC MCP. <b>Study Design</b> Prospective cohort design nurses mothers preterm infants self-report anonymous questionnaire. Analyses categorical independent variables continuous were calculated. <b>Results</b> In all, 82.3% (42) 100% (143) participated in survey....