bluuebunny/crossref_metadata_2025_split huggingface dataset:
Rare Earth Ion Center in Distorted Square Anti-Prism Coordination Environment: A Novel Three-Dimensional Coordination Polymer with Channels
Authors: Haitao Xu , Nengwu Zheng , Xianglin Jin , Ruyi Yang , Zhengquan Li 
Published: September 2002

Abstract
The hydrothermal synthesis and the structure of the coordination polymer [La2(ATPT)3·(H2O)5] (H2O)2 (ATPT=2-aminoterephthalic acid) were reported. The Rare-earth ion center was in the distorted square anti-prism coordination environment. These carboxyl groups linking La3+ ion centers engendered one-dimension channels with pending groups. Guest water molecules in these channels joined these pending groups via hydrogen bond.
Unusual Absorption Spectra Found for Some Phthalocyaninatozinc(II) Complexes Bearing Dendritic Substituents at α Positions
Authors: Kasuga Kuninobu , Matsuura Noriyuki , Inoue Koji , Handa Makoto , Sugimori Tamotsu , Isa Kimio , Nakata Makoto 
Published: September 2002

Abstract
Phthalocyaninatozinc(II) complexes bearing dendritic substituents have been prepared. It was found that their generation number and positions on the phthalocyanine ring caused unusual absorption and emission spectral features.
Cu(II) Coordination Structure in NAD Glycohydrolase from Agkistrodon acutus Venom Studied by EPR Spectroscopy
Authors: Wu Shuang Ding , Xu Xiaolong , Xie Yongshu , Chen Lixin , Chen Zhenlong , Liu Qingliang 
Published: September 2002

Abstract
NAD glycohydrolase (NADase) from Agkistrodon acutus venom and several Cu(II) model complexes was studied by EPR spectroscopy. It was found that three nitrogen atoms may coordinate to Cu(II) ions and these nitrogen atoms might be from the imidazole groups of histidines in NADase molecule.
Highly Ordered Coronene Adlayer on Au(111) Surface Formed in Benzene Solution: In situ Scanning Tunneling Microscopy Study
Authors: Yoshimoto Soichiro , Narita Ryuji , Itaya Kingo 
Published: September 2002

Abstract
The technique of in situ scanning tunneling microscopy (STM) revealed that a highly ordered adlayer of coronene molecules was formed on an Au(111) surface by first immersing the substrate in benzene containing dissolved coronene and then transferring it into an aqueous solution of HClO4.
Synthesis and Ethylene Polymerization Behavior of a New Titanium Complex Having Two Imine–Phenoxy Chelate Ligands
Authors: Suzuki Yasuhiko , Kashiwa Norio , Fujita Terunori 
Published: September 2002

Abstract
A novel (N-benzylidene-2-hydroxy-3,5-di-t-butyl-aniline)2TiCl2 complex was synthesized and investigated for its potential as an ethylene polymerization catalyst in the presence of MAO or Ph3C+B-(C6F5)4/iBu3Al as a cocatalyst. Upon activation with Ph3C+B-(C6F5)4/iBu3Al, the complex displayed higher activities at higher temperatures, and the activity reached a very high value of 5784 kg-PE/mol-Ti·h at 75 °C under atmospheric pressure.
Asymmetric Cyclization via Oxygen Cation Radical: Enantioselective Synthesis of cis-4b,9b-Dihydrobenzofuro[3,2-b]benzofurans
Authors: Masutani Kouta , Irie Ryo , Katsuki Tsutomu 
Published: September 2002

Abstract
Aerobic oxidative cyclization of 2,2′-dihydroxystilbenes via oxygen cation radical to give cis-4b,9b-dihydrobenzofuro[3,2-b]benzofurans was carried out in an enantioselective manner (up to 89% ee) by using (nitrosyl)Ru(salen) 10 as the catalyst under photo-irradiated conditions.
Electrochemistry in Middle Phase Microemulsion Composed of Saline and Toluene with Sodium Dodecylsulfate and n-Butanol
Authors: Yoshitake Shinya , Ohira Akihiro , Tominaga Masato , Nishimi Taisei , Sakata Masayo , Hirayama Chuichi , Kunitake Masashi 
Published: September 2002

Abstract
A “middle phase” microemulsion, which bicontinuously composed of saline and toluene microphases, with sodium dodecylsulfate (SDS) and n-butanol was electrochemically characterized. When electrochemistry was performed in the “middle phase” microemulsion, reversible redox peaks of the Fe(CN)6 ion in the micro water phase and the ferrocene in the micro toluene phase could be observed simultaneously, although the electrolyte was present only in the water phase.
Synthesis, Crystal Structure and Superoxide Dismutase (SOD) Activity of Novel Seven-Coordinated Manganese(II) Complex with Multidentate Di-Schiff Base Ligands
Authors: Ouyang Xing-Mei , Fei Bao-Li , Okamura Taka-aki , Sun Wei-Yin , Tang Wen-Xia , Ueyama Norikazu 
Published: September 2002

Abstract
A novel hepta-coordinated mononuclear manganese(II) complex, [Mn(L)2(H2O)](ClO4)2·2.5H2O [L=1,2-bis(2′-pyridylmethyleneamino)propane], was obtained by assembly reaction of a di-Schiff base ligand L with manganese(II) perchlorate. The crystal structure shows that one of the L ligand acts as a quadridentate ligand, while the other one serves as a bidentate. The Mn(II) complex was found to have activity of dismutation of superoxide (O2·-) in the riboflavin-methionine-nitro blue tetrazolium assay.
Reactions of Silenes Produced Thermally from Pivaloyl- and Adamantoyltris(trimethylsilyl)silane with Bis(trimethylsilyl)butadiyne
Authors: Naka Akinobu , Ishikawa Mitsuo 
Published: September 2002

Abstract
Thermolysis of pivaloyl- and adamantoyltris(trimethylsilyl)silane (1a) and (1b) with bis(trimethylsilyl)butadiyne at 120 °C gave the respective [2+2] cycloadducts. Similar thermolysis of 1a and 1b with bis(trimethylsilyl)butadiyne at 160 °C, however, afforded 2-oxa-1,1,3,5-tetrakis(trimethylsilyl)-4-trimethylsilylethynyl-1-silacyclopent-4-ene derivatives in high yields.
Application of XANES for the Determination of Oxidation States of Co and Pb in Natural Ferromanganese Nodules
Authors: Takahashi Yoshio , Usui Akira , Okumura Kazu , Uruga Tomoya , Nomura Masaharu , Murakami Mio , Shimizu Hiroshi 
Published: September 2002

Abstract
Cobalt K-edge and Pb LIII-edge XANES spectra were obtained by fluorescent XANES using solid state detector (SSD) for Co and Pb in natural rocks, ferromanganese nodules. The XANES spectra suggest that Co(III) and Pb(II) are their main oxidation states in ferromanganese nodules. Based on the results, enrichment mechanisms of Co and Pb in ferromanganese nodules were discussed.
A Novel, One-Pot Synthesis of α-C-Cyanohydrazines in the Presence of Lithium Perchlorate/Diethylether Solution (5.0 M)
Authors: Heydari Akbar , Baharfar Robabe , Rezaie Mohsen , Aslanzadeh Saied M 
Published: September 2002

Abstract
Condensation of N,N-dimethylhydrazine, an aldehyde in lithium perchlorate/diethylether solution (5.0 M) gave N,N-dimethylhydrazone, which were treated with trimethylsilyl-cyanide to afford α-C-cyanohydrazine. These compounds are important precursors of nitrogen-substituted reagents.
Observation of a High Resolution Proton NMR with a 920 MHz Superconducting Magnet
Authors: Hashi Kenjiro , Shimizu Tadashi , Goto Atsushi , Kiyoshi Tsukasa , Matsumoto Shinji , Wada Hitoshi , Fujito Teruaki , Hasegawa Ken-ichi , Yoshikawa Masatoshi , Miki Takashi , Ito Satoshi , Hamada Mamoru 
Published: September 2002

Abstract
We have performed the proton NMR measurements of H2O and ethylbenzene (C6H5–CH2–CH3) using the superconducting magnet operating at 21.6 T (920 MHz for proton) in the persistent mode. It is found that both homogeneity and stability of the magnet have a specification sufficient for a high resolution NMR.
Fabrication of the Sponge-like Layered Silver(I)-alkylamine Complexes and Their in situ Reduction
Authors: Ren N , Tang Y , Wang Y J , Dong A G , Yang W L 
Published: September 2002

Abstract
A series of layer-structured silver(I)-alkylamine complexes with sponge-like morphology and abundant macroporosity were self-assembled in the alcohol/water system. After in situ reduction, the layered silver(0)-alkylamine composites were obtained.
Preparation of Boron-containing TON-Type Zeolite by Self-transformation of Porous Glass in a Vapor Phase
Authors: Dong Wei-Yang , Qiu Xi-Peng , Ren Yu , Long Ying-Cai 
Published: September 2002

Abstract
Pure phase of boron-containing TON-type zeolite with high crystallinity was prepared by self-transformation of porous glass granules in a vapor phase of methylamine and water. XRD and 11B, 27Al and 29Si MAS NMR spectra proved that the atoms of B, Al and Si in the raw glass have been essentially completely incorporated into the zeolite framework.
Water Accelerated Allylation of Aldehydes by Using Water Tolerant Grignard-Type Allylating Agents from Allylmagnesium Chloride and Various Metallic Salts
Authors: Fukuma Tomohiro , Lock Sandra , Miyoshi Norikazu , Wada Makoto 
Published: September 2002

Abstract
Some water-tolerant allylating agents prepared in situ from allylmagnesium chloride and bismuth trichloride, tin tetrachloride, tin dichloride, antimony trichloride, indium trichloride, or nickel dichloride reacted with aldehydes in THF–H2O to afford the desired homoallylic alcohols in good yields. The present reaction proceeded more smoothly than that under non-aqueous media.
Solvent Effect on Morphology of Self-assembled Fibrous Materials Derived From an Azopyridine Carboxylic Acid
Authors: Aoki Ken’ichi , Nakagawa Masaru , Seki Takahiro , Ichimura Kunihiro 
Published: September 2002

Abstract
The macroscopic morphology of fibrous materials deposited from solutions of an azopyridine carboxylic acid dissolved in organic solvents was critically corelated with solvent parameters.
Terpiodiene: A Novel Tricyclic Alcohol from the Okinawan Sponge Terpios hoshinota
Authors: Teruya Toshiaki , Nakagawa Satoru , Koyama Tomoyuki , Suenaga Kiyotake , Uemura Daisuke 
Published: September 2002

Abstract
Terpiodiene (1), a novel tricyclic alcohol, was isolated from the Okinawan sponge Terpios hoshinota, which overgrows and kills corals. Its structure was determined by spectroscopic analysis and the modified Mosher’s method. This compound exhibited moderate cytotoxicity against P388 cells.
Direct Synthesis of Coumarins by Pd(II)-Catalyzed Reaction of Alkoxyphenols and Alkynoates
Authors: Oyamada Juzo , Jia Chengguo , Fujiwara Yuzo , Kitamura Tsugio 
Published: September 2002

Abstract
Reaction of alkoxyphenols and alkynoates in the presence of a catalytic amount of Pd(OAc)2 in trifluoroacetic acid at room temperature gave coumarin derivatives in high yields. This procedure provides a convenient method for direct synthesis of coumarin derivatives under very mild conditions.
Amplification of Detection Signals for Methyl Viologen by Using Supramolecular Formation of Antibody with Viologen Dimer in Surface Plasmon Resonance Sensor
Authors: Yamaguchi Hiroyasu , Harada Akira 
Published: September 2002

Abstract
A new method to amplify detection signals for methyl viologen in surface plasmon resonance (SPR) sensor has been devised by using supramolecular formation of anti-viologen antibodies with divalent viologens.
Preparation and Molecular Arrangement of Novel Pyrenophanes
Authors: Tsuge Akihiko , Tanba Yuji , Moriguchi Tetsuji , Sakata Kazunori 
Published: September 2002

Abstract
A stack and an offset stack geometrical arrangements based on the columnar structure have been confirmed for the molecular packing of novel pyrenophanes consisting of aniline unit or nitrobenzene unit, respectively, in contrast to a herringbone arrangement identified for the pyrenophane having benzene unit. Such a columnar stack arrangement is probably due to weak intermolecular interaction between the pyrene and the opposite aromatic component.
Syntheses of Vinyl Polymers Containing Phenylanthracene Pendants and Their Application ro Organic EL Device
Authors: Shirai Satoshi , Kido Junji 
Published: September 2002

Abstract
Fluorescent vinyl polymers containing 9-phenylanthracene pendants were synthesized and examined as an emitter layer in organic electroluminescent devices. The single layer polymer EL device using the homopolymer emitted green light originating from the excimer of the anthracene units. On the other hand, blue emission was observed from the devices using the copolymer with vinylcarbazole.
meso-Tetraphenylporphyrin Having Hexa-maltosyl and Decyl Chain as an Amphiphilic Photosensitizer toward Photodynamic Therapy
Authors: Hamazawa Akihisa , Kinoshita Isamu , Breedlove Brian , Isobe Kiyoshi , Shibata Minako , Baba Yasuko , Kakuchi Toyoji , Hirohara Shiho , Obata Makoto , Mikata Yuji , Yano Shigenobu 
Published: September 2002

Abstract
meso-Tetraphenylporphyrin having hexa-maltosyl and decyl chain was synthesized via dipyrromethane coupling. Its singlet oxygen producing ability and phototoxicity against the HeLa cell were estimated.
Novel Activity of SnO2 for Methanol Conversion: Formation of Methane, Carbon Dioxide, and Hydrogen
Authors: Mori Tohru , Hoshino Shunichi , Neramittagapong Arthit , Kubo Jun , Morikawa Yutaka 
Published: September 2002

Abstract
SnO2 catalyzed methanol conversion to form methane, carbon dioxide and hydrogen selectively. It was suggested that formaldehyde was an intermediate to give methyl formate that readily decomposed into methane and carbon dioxide.
Catalytic and Stereoselective Glycosylation with a Novel and Efficient Disarmed Glycosyl Donor: Glycosyl p-Trifluoromethylbenzylthio-p-trifluoromethylphenyl Formimidate
Authors: Mukaiyama Teruaki , Chiba Hiroyuki , Funasaka Setsuo 
Published: September 2002

Abstract
A novel and efficient glycosyl donor having a p-trifluoro-methylbenzylthio-p-trifluoromethylphenyl formimidate function as a leaving group is easily prepared by the addition of anomeric hydroxyl group of 2,3,4,6-tetra-O-benzoyl-α,β-D-glucopyranose to p-trifluoromethylphenyl isothiocyanate, followed by treatment with p-trifluoromethylbenzyl bromide. Catalytic and stereoselective glycosylation using this glycosyl donor effectively proceeds by activating its nitorogen atom with various protic and Lewis acids.
Synthesis and Single Aggregate Spectroscopy of a Novel Fluorescent Dendrimer with Highly Efficient Energy Harvesting
Authors: Kobayashi Minoru , Machida Shinjiro , Takahashi Satoshi , Horie Kazuyuki , Yoshikawa Hiroyuki , Masuhara Hiroshi 
Published: September 2002

Abstract
A novel fluorescent dendrimer with a diphenylanthracene core and pyrenyl groups in the dendrons was synthesized. Fluorescence spectra and its decay curves proved spontaneous energy transfer from the pyrene units to the core diphenylanthracene, which was ascertained both in solution and for a single particle of the dendrimer aggregate.
A New Chelation-Assistance Mode for a Ruthenium-Catalyzed Silylation at the C-H Bond in Aromatic Ring with Hydrosilanes
Authors: Kakiuchi Fumitoshi , Igi Kimitaka , Matsumoto Mitsutaka , Hayamizu Tomoo , Chatani Naoto , Murai Shinji 
Published: September 2002

Abstract
Ruthenium-catalyzed reactions of aromatic compounds having an amino group or a heteroaromatic ring as a directing group with triethylsilane gave the corresponding ortho silylated products in good to excellent yields. In contrast to our previous results, in which the reactive substrates with π-conjugation between the hetero atom in the directing group and the carbon atom possessing the C-H bond to be cleaved were used, the present reaction proceeds in cases of substrates having no such π-conjugation.
Non-aqueous Synthesis and Structure of a Novel Monodimensional Zirconium Phosphate: [NH4]3[Zr(OH)2(PO4)(HPO4)]
Authors: Wang Dan , Yu Ranbo , Takei Takahiro , Kumada Nobuhiro , Kinomura Nobukazu , Onda Ayumu , Kajiyoshi Koji , Yanagisawa Kazumichi 
Published: September 2002

Abstract
A novel one-dimensional zirconium phosphate inorganic polymer, [NH4]3[Zr(OH)2(PO4)(HPO4)] has been synthesized in (HOCH2CH2)2O medium with F- ions in presence, and structurally characterized. The compound consists of macroanionic chains of [ZrP2O10H3]3- separated by NH4+ cations.
Intramolecular Coupling of Vinyl Ether and Olefins or Acetylenes with Ti(II) Reagent. Regio- and Stereo-selective Vinyltitanation of Carbon-Carbon Multiple Bonds
Authors: Nakajima Ryota , Urabe Hirokazu , Sato Fumie 
Published: September 2002

Abstract
Treatment of m-alkenyl (or m-alkynyl) vinyl ethers (m = 3,4) with a Ti(II) reagent generated most likely bicyclic oxatitanacycles, which eliminate the alkoxide tether to effect the selective vinyltitanation of the alkene or alkyne moiety to give m-vinyl-1-alkanols or m-vinyl-m-alken-1-ols.
Synthesis of (1R,3S,5S)-1,3,8-Trimethyl-2,9-dioxabicyclo[3.3.1]non-7-ene, the Male Pheromone of a Hepialid Moth Endoclita excrescens, and Its Enantiomer
Authors: Marukawa Kaoru , Mori Kenji 
Published: September 2002

Abstract
Both (1R,3S,5S)- and (1S,3R,5R)-isomers of 1,3,8-trimethyl-2,9-dioxabicyclo[3.3.1]non-7-ene were synthesized by starting from (S)- and (R)-isomers of ethyl 3-hydroxybutanoate, respectively. The (1R,3S,5S)-isomer was identified as the male sex pheromone of a Japanese hepialid moth, Endoclita excrescens.
A Novel Host-Guest Supramolecular Architecture of Dehydrocholic Acid in the Enantioselective Inclusion of R-(+)-Methyl p-Tolyl Sulfoxide
Authors: Bertolasi Valerio , Bortolini Olga , Fantin Giancarlo , Fogagnolo Marco , Medici Alessandro 
Published: September 2002

Abstract
The first crystal structure of a 1:1 inclusion complex between dehydrocholic acid and R-(+)-methyl p-tolyl sulfoxide, formed by intercalation layers, is reported.
Structural Control in Enzymatic Oxidative Polymerization of Phenols with Varying the Solvent and Substituent Nature
Authors: Mita Naruyoshi , Tawaki Shin-ichiro , Uyama Hiroshi , Kobayashi Shiro 
Published: September 2002

Abstract
Control of the coupling selectivity (regioselectivity) in the horseradish peroxidase-catalyzed oxidative polymerization of 4-substituted phenols has been achieved by changing the hydrophobic parameters of the monomer substituent and organic solvent (π and logP, respectively), yielding soluble polyphenols with a different ratio of phenylene/oxyphenylene units.
Morphological Change of Giant Vesicles Triggered by Dehydrocondensation Reaction
Authors: Takakura Katsuto , Toyota Taro , Yamada Koji , Ishimaru Masako , Yasuda Kenji , Sugawara Tadashi 
Published: September 2002

Abstract
A giant vesicle composed of an amphiphile with a reactive site exhibited a morphological change when the vesicular amphiphile reacts with an added amphiphilic reaction-partner within its membrane.
Coordinatively Unsaturated Ru(II) Species Ru(xantsil)(CO): A New Active Catalyst for Oligomerization/Deoligomerization of HSiMe2SiMe3 [xantsil=(9,9-Dimethylxanthene-4,5-diyl)bis(dimethylsilyl)]. Isolation of a Stabilized Form of the Silyl(silylene) Intermediates
Authors: Minglana Jim Josephus G , Okazaki Masaaki , Tobita Hiromi , Ogino Hiroshi 
Published: September 2002

Abstract
Ru(xantsil)(CO)(η6-C6H5CH3) (1) was found to be a catalyst for the oligomerization/deoligomerization of HSiMe2SiMe3 to give H(SiMe2)nMe (n=1–8). A possible mechanism involving a silyl(silylene) intermediate was strongly supported by the isolation of its stabilized form, i.e., alkoxy-bridged bis(silylene) complex which was characterized by X-ray crystal structure analysis.
An Amorphous Nanosized Tin-Zinc Composite Oxide as a High Capacity Anode Material for Lithium Ion Batteries
Authors: Yuan Zhengyong , Huang Feng , Sun Jutang , Zhou Yunhong 
Published: September 2002

Abstract
A new anode material for lithium ion batteries, ZnSnO3, was prepared through the pyrolysis of ZnSn(OH)6. The powder XRD analysis and TEM image demonstrated that the product is amorphous, the powder particles take the shape of square flake and the size is about 70 nm. Electrochemical measurements showed that the reversible capacity of the ZnSnO3 electrode was more than 800 mAh·g-1.
Synthesis of a PET-Clay Hybrid Material
Authors: Guozhen Zhang , Shichi Tetsuya , Zhiwei Tong , Takagi Katsuhiko 
Published: September 2002

Abstract
The hybridization of poly(ethylene terephthalate) (PET) with montmorillonite (Mont) was investigated by using hydroxyethyl isonicotinamide (HENA) as an ionic anchor monomer capable of being adsorbed onto clay surfaces by a pyridinyl group (-C5H5N). The hybrid films of HENA/Mont with bis(hydroxyethyl) terephthalate (BHET) exhibited favorable characteristics of being optically clear and transparent.
High Temperature PTC Thermistor Using Ba Cobaltite
Authors: Kinoshita Kazuya , Kusaba Hajime , Sakai Go , Shimanoe Kengo , Miura Norio , Yamazoe Noboru 
Published: September 2002

Abstract
It was found that partially Fe-substituted Ba cobaltite, BaCo0.7Fe0.3O3-δ, shows sharp PTC behavior at temperature above 850 °C. As revealed by XRD measurements, the PTC behavior is accompanied by phase transformation between hexagonal perovskite structure (low temperature) and cubic one (high temperature).
Oxidative Double Bond Cleavage of α-Substituted Styrenes with Molecular Oxygen
Authors: Hayashi Yujiro , Takeda Mitsuhiro , Miyamoto Yuji , Shoji Mitsuru 
Published: September 2002

Abstract
Oxidative cleavage of the carbon-carbon double bond of α-substituted styrene derivatives proceeds under an atmospheric pressure of molecular oxygen at the solventless conditions to afford the corresponding ketones in moderate yields with no requirement for transition metal catalysts or photo-activation.
Modulation of the Copper-Dioxygen Reactivity by Stereochemical Effect of Tetradentate Tripodal Ligands
Authors: Hayashi Hideki , Uozumi Kounosuke , Fujinami Shuhei , Nagatomo Shigenori , Shiren Kazushi , Furutachi Hideki , Suzuki Masatatsu , Uehara Akira , Kitagawa Teizo 
Published: September 2002

Abstract
Dioxygen reactivity of a copper(I) complex having a sterically hindered Me3-tpa and monooxygenase activity of its oxygenated species toward the ligand were significantly modulated by the presence of the 6-methyl group onto pyridyl group.
A Highly Selective and Coking-Resistant Catalyst for Methane Dehydrocondensation
Authors: Shu Yuying , Ohnishi Ryuichiro , Ichikawa Masaru 
Published: September 2002

Abstract
Acid reflux-dealuminated HMCM-22 supported Mo catalyst exhibits highly selective and coking-resistant catalytic performance for methane dehydrocondensation reaction, compared with conventional catalysts. The excellent catalytic stability of the dealuminated catalyst is based on the remarkable suppression of coke formation owing to the effective decrease of Brönsted acid sites, which are demonstrated by TPO, 1H NMR and NH3-TPD methods.
Synthesis of Single-Handed Helical Poly(1-dibenzosuberyl methacrylate) via Radical Polymerization in the Presence of an Optically Active Cobalt(II) Complex
Authors: Nakano Tamaki , Tsunematsu Kumiko , Okamoto Yoshio 
Published: September 2002

Abstract
The radical polymerization of 1-phenyldibenzosuberyl methacrylate in the presence of an optically active cobalt(II) complex led to an optically active polymer having a single-handed helical conformation.
Photoinduced Changes of Surface and Adsorbed Water in TiO2 Photocatalytic Systems as Studied by Solid State 1H-NMR Spectroscopy
Authors: Nosaka Atsuko Y , Fujiwara Toshimichi , Yagi Hiromasa , Akutsu Hideo , Nosaka Yoshio 
Published: September 2002

Abstract
1H-NMR spectra of TiO2 photocatalysts consist of two peaks with line widths of 500 Hz and 18 kHz. The sharp peak was attributed to physisorbed water, while the broader one is considered to correspond to the less mobile bound water or surface OH group. On UV illumination both peaks disappeared. The admission of air leads to the recovery of both peaks to some extent but in a different spectral feature for the broad peak, reflecting the surface structural change on TiO2 by photo illumination.
NMR Observation of Trialkylphosphite-Palladium(II) and Ruthenium(II) Complexes in Supercritical Carbon Dioxide
Authors: Kayaki Yoshihito , Suzuki Tomoyuki , Noguchi Yushi , Sakurai Satoshi , Imanari Mamoru , Ikariya Takao 
Published: September 2002

Abstract
A supercritical fluid nuclear magnetic resonance (scNMR) spectroscopic method has been developed using a commercially available NMR spectrometer equipped with a high-pressure zirconia cell, revealing that trialkylphosphite ligands are highly effective for increasing the solubility of dichloropalladium(II) and dichlororuthenium(II) complexes in supercritical carbon dioxide (scCO2).