A5013546193- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Magnetism in coordination complexes
- Metal complexes synthesis and properties
- Lanthanide and Transition Metal Complexes
- Porphyrin and Phthalocyanine Chemistry
- Metal-Catalyzed Oxygenation Mechanisms
- Metal-Organic Frameworks: Synthesis and Applications
- Crystallography and molecular interactions
- Organometallic Complex Synthesis and Catalysis
- Oxidative Organic Chemistry Reactions
- Polyoxometalates: Synthesis and Applications
- Photodynamic Therapy Research Studies
- Electrochemical Analysis and Applications
- Carbon dioxide utilization in catalysis
- Asymmetric Hydrogenation and Catalysis
- CO2 Reduction Techniques and Catalysts
- Crystal structures of chemical compounds
- Photochemistry and Electron Transfer Studies
- Synthesis and Reactivity of Heterocycles
- Organometallic Compounds Synthesis and Characterization
- Chemical Synthesis and Analysis
- Fluorine in Organic Chemistry
- Photochromic and Fluorescence Chemistry
- Inorganic Chemistry and Materials
Shimane University
2016-2025
National Institute of Technology, Matsue College
2015-2021
Shimane Prefectural Police
2017
National Research Institute of Police Science
2017
Kwansei Gakuin University
1998-2013
Japan Atomic Energy Agency
2013
Shionogi (Japan)
1999
Memorial University of Newfoundland
1996
University of Shimane
1990-1995
Kyushu University
1985-1988
Electrochemical aptasensors involved in chemical labeling are often single-use and sensitivity-limited because the probes commonly single-point labeled irreversible. In this work, specific coordination between Zr4+ phosphate group (−PO43–) was employed to construct a new aptasensor that is highly sensitive reusable, using Ochratoxin A (OTA) as test model. The OTA binding aptamer (OBA) hybridized with thiolated supporting sequence (TSS) immobilized on surface of gold electrode. UiO-66 formula...
Abstract The effect of variation structural factors on the spin-exchange interaction between copper(II) centers in dialkoxo-bridged dinuclear copper complexes were studied by ab initio MO method with UHF formalism. calculations performed di-μ-methoxotetraamminedicopper(II). J-values obtained as functions Cu–O–Cu angle, dihedral angle two coordination planes, planarity bonds bridging oxygens, tetrahedral distortion and tilt O–C bond from O–O axis. results demonstrated that most effectively...
Four new cobalt(II) complexes [Co(6-MeTPA)Cl]ClO4/PF6 (2/2a), [Co(6-Me2TPA)Cl]ClO4/PF6 (3/3a), [Co(BPQA)Cl]ClO4/PF6 (4/4a) and [Co(BQPA)Cl]ClO4/PF6 (5/5a) as well [Co(TPA)Cl]ClO4 (1) where TPA = tris(2-pyridylmethyl)amine, 6-MeTPA ((6-methyl-2-pyridyl)methyl)bis(2-pyridylmethyl)amine, 6-Me2TPA bis(6-methyl-2-pyridyl)methyl)-(2-pyridylmethyl)amine, BPQA bis(2-pyridylmethyl)-(2-quinolylmethyl)-amine BQPA bis(2-quinolylmethyl)-(2-pyridylmethyl)amine were synthesized structurally characterized....
A series of luminescent bis-cyclometalated iridium complexes with 2,2′:6′,2″-terpyridine (tpy), [Ir(C^N)2(tpy)]PF6 (C^N = 2-phenylpyridinate (ppy) for 1; benzo[h]quinolinate (bzq) 2; 1-phenylisoquinolinate (piq) 3; and 2-phenylbenzothiazolate (pbt) 4), have been synthesized structurally characterized. Single-crystal X-ray diffraction analyses reveal that the tpy ligands 1–4 are coordinated to center in a bidentate fashion, uncoordinated pendant pyridine rings form intramolecular π-π stacking...
The synthesis, characterization, crystal structures, and electronic properties of 1,8-naphthyridine-2-carboxylate bridged diruthenium( ii , ) complexes are presented.
Abstract The three-dimensional coordination polymers, [{Ru2(piv)4}3(H2O)M(CN)6] [M=Fe (1) and Co (2), Hpiv = pivalic acid], have been synthesized characterized by X-ray crystallography, electronic spectroscopy magnetic susceptibility measurement.
Three Schiff-base-type nickel(II) complexes (1a–3a) and the corresponding noninnocent-type (1b–3b) were synthesized, equilibria between these valence isomers observed in tetrahydrofuran (THF) at room temperature. The electronic state of nickel complex was also confirmed by isolation one-electron-reduced species. catalytic ability for photogeneration hydrogen from water examined about 1a–3a 1b–3b presence a photosensitizer sacrificial electron donor. Then, with chlorine atoms (2a) methyl...
Abstract Reaction of copper(II) benzoate with pyrazine (pyz) gave a compound, [Cu2(bz)4(pyz)]n (1) which has gas-occlusion property. The X-ray structure analysis 1·2nCH3CN shows microporous formed by chains where the carboxylate dimer units are linked molecules.
Abstract A chain complex of diruthenium(II,III) cation dimer linked by a nitroxide radical, [Ru2(O2CCMe3)4(nitph)]n(BF4)n (nitph = 2-phenyl-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-1-oxyl 3-N-oxide), has been prepared and characterized. The structure with an alternating alignment Ru(II,III) core nitph confirmed the X-ray crystal analysis. magnetic moment decreased steadily decrease temperature, against expectation ferrimagnetic behavior based on alternated S1 3/2 (for core) S2 1/2 nitph)....
Abstract A few (alkoxo)(subphthalocyaninato)boron(III) complexes, [BX(subpc)] (X = OMe, OEt, OBut, and OPh), were prepared characterized. The molecular structure of [B(OEt)(subpc)] was determined by an X-ray analysis; the boron atom is situated 0.642 Å upward from triangle plane three isoindoline nitrogen atoms. geometry distorted tetrahedral, complex shows a wine-glass shape. mass spectra showed that part hydrogen atoms subphthalocyanine ring are displaced halogen trihalide or solvents....
Two structurally different polymeric complexes consisting of ruthenium(II,III) pivalate ([Ru2(piv)]4+) (Hpiv = pivalic acid) and octacyanotungstate(V) ([W(CN)8]3−) ions, [{Ru2(piv)4}3W(CN)8(H2O)] (1) (PPh4)2[Ru2(piv)4W(CN)8]·0.5H2O (2), were synthesized. The infrared spectra as well diffused reflectance confirmed the existence dimer in 1 2. X-ray crystal structure analysis 2 showed an alternating arrangement [Ru2(piv)]4+ [W(CN)8]3− ions a one-dimensional chain. temperature-dependent magnetic...
Three new tripod tetradentate phenolate-amines (H2L1, H2L4 and H2L9), together with seven more already related published ligands, were synthesized, characterized. With these two dinuclear doubly-bridged-phenoxido copper(II) complexes (3, 4), six (1, 2, 5–8), a trinuclear complex (9) an alternative –methoxido, as well the 1D polymer (10) their molecular structures characterized by spectroscopic methods X-ray single crystal crystallography. The Cu(II) centers in exhibit distorted...
Abstract The Yb(III) and Lu(III) sandwich complexes of 2,3,9,10,16,17,23,24-octabutoxyphthalocyanine (H2obPc) were prepared characterized. Those electrochemical properties in CH2Cl2 studied by means cyclic voltammetry absorption spectra 320–1600 nm region monitored during controlled-potential electrolysis.
An extended one‐dimensional chain‐type coordination polymer, [Rh 2 (piv) 4 (tpy)] n ( 1 ; piv = pivalate, tpy 2,2′:6′,2′′‐terpyridine), has been synthesized and characterized by single‐crystal powder X‐ray diffraction analyses, elemental analysis, IR spectrosopy, thermogravimetric UV/Vis diffuse reflectance spectroscopy, magnetic measurements at 300 K. This complex shows unique repeatable self‐assembly disassembly transformation properties. Polymer readily decomposed to its constituent...
Abstract A nitroxide complex, [Ru2(O2CCMe3)4(tempo)2][Ru2(O2CCMe3)4(H2O)2](BF4)2 (tempo = 2,2,6,6-tetramethylpiperidine-1-oxyl) has been prepared and characterized by elemental analysis, X-ray crystal structure variable temperature magnetic susceptibility ESR spectrum measurements. fairly large antiferromagnetic interaction (J −130 cm−1) between the diruthenium core radical observed.
Abstract Carbon dioxide was fixed as propane-1,2-diol carbonate (PDC) with 1,2-epoxypropane (EP) catalyzed by Al(OH){pc(t-Bu)4} in the presence of such a quaternary ammonium halide (HAX) [HO(CH2)2N(CH3)2(C4H9)]X (X = Cl, Br, I). Although yield scarcely affected structure HAX, it dependent on kind ion. While PDC formed chloroform or dichloromethane, decreased extremely DMSO pyridine, and not prepared methanol. halohydrin solution EP, Al(OH){pc(t-Bu)4}, an intermediate. The formation...