Chemistry Letters http://www.csj.jp/journals/chem-lett/ Vol.34 No.7 CMLTAG July, 2005 ISSN 0366-7022 Copyright Ó 2005 The Chemical Society of Japan 886 A New Route to an Endohedral Fullerene by Way of -Framework Transformations Koichi Komatsu and Yasujiro Murata The molecular surgical approach has been shown to be applicable to preparation of an endohedral fullerene. Thus, an orifice large enough to insert an atom or molecule has been constructed on the surface of fullerene C 60 . The orifice has been enlarged to a 13-membered ring by insertion of a sulfur atom on the rim, and 100% encapsulation of molecular hydrogen has been attained. Then, the size reduction of the orifice, without the loss of incorporated hydrogen, and complete closure of the orifice have been achieved to afford a new endohedral fullerene, H 2 @C 60 . Highlight Review Letter 892 Two New Nortriterpenes from Ligularia tongolensis Two new nortriterpenes having a ursane Chinese Ligularia tongolensis, and their structures constants and NOE experiments. OH HO R 1 R = β OH 2 R = α OH type structure were isolated from the roots of were elucidated by interpretation of spectral data. Their relative stereochemistries were also clarified by detailed analysis of proton−proton coupling Yi Feng Han, Kun Gao, and Zhong Jian Jia Electronic Supporting Information
886 A New Route to an Endohedral Fullerene byWay of �-Framework Transformations
Koichi Komatsu and Yasujiro Murata
The molecular surgical approach has been shown to be applicable to preparation of an endohedral fullerene. Thus, anorifice large enough to insert an atom or molecule has been constructed on the surface of fullerene C60. The orifice has beenenlarged to a 13-membered ring by insertion of a sulfur atom on the rim, and 100% encapsulation of molecular hydrogen hasbeen attained. Then, the size reduction of the orifice, without the loss of incorporated hydrogen, and complete closure of theorifice have been achieved to afford a new endohedral fullerene, H2@C60.
Highlight Review
Letter
892 Two New Nortriterpenes from Ligulariatongolensis
Two new nortriterpenes having a ursane
Chinese Ligularia tongolensis, and their structures
constants and NOE experiments.
OH
HO
R
1 R = β OH2 R = α OH
type structure were isolated from the roots of
were elucidated by interpretation of spectral data.Their relative stereochemistries were also clarified
by detailed analysis of proton−proton coupling
Yi Feng Han, Kun Gao, and Zhong Jian Jia
Electronic Supporting Information
C-108 Chemistry Letters Vol.34, No.7 (2005)
Copyright � 2005 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
894 Diastereoselective Trifluoromethylation ofChiral N-(Tolylsulfinyl)imines in the Pres-ence of Lewis Bases
synthesized by self-assemble CdS nanoparticles (NPs)inside Sn2+/Pd2+-activated nanochannels of anodic
analysis indicates that the as-synthesized CdS NWs arehexagonal crystalline. TEM and SEM observations revealthat the CdS NWs are porous and consists ofself-assembled CdS NPs. This facile approach might beexploited to synthesize other porous NWs composed ofimportant inorganic materials by selecting appropriateXueru Zhang, Xiaoyou Yuan, Yong Zhang,
Qing Wei, Guowen Meng, and Lide Zhang
898 Functional InP Nanocrystals as Novel Near-infrared Fluorescent Sensors for MercuryIons
680 700 720 740 760 7800
500
1000
1500
2000
2500
h
a
Rel
ativ
e flu
ores
cenc
e in
tens
ity
Wavelength(nm)800 820 840 860 880
0
400
800
1200
1600h
a
Rel
ativ
e flu
ores
cenc
e in
tens
ity
Wavelength(nm)
The nanocrystals fluoresce in the near-infrared region with maximum excitation and emissionwavelengths at 750 and 826 nm, respectively. The fluorescence intensity is significantlyenhanced in the presence of Hg2+ ions.
Changqing Zhu, Ling Li, Fang Fang, JinlongChen, and Yuqin Wu
Electronic Supporting Information
900 Blue Light Emitting Poly(N-arylcarbazol-2,7-ylene)s
N
OR
n
R: dodecyl, 2-ethylhexyl
A: Ni(cod)2, bpy THF-DMF, 70 °C
B: Zn, PPh3, NiCl2, bpyDMAc, 80 °C
NX X
OR X: Cl, Br
Masashi Kijima, Ryohei Koguchi, and ShotaAbe
902 A Facile Chemical Solution Route to ConvertBulk Cuprous Iodide into Nanoparticles
CuI nanoparticles were fabricated fromconventional CuI powders inmicrometer size. Acetonitrile was used asa dispersing agent to dissolve CuIpowders. With acetonitrile evaporated,poly-2-vinylpyrolidine (PVP) in thesolution could effectively restrict CuIparticle growth, prevent them fromaggregation, and result in the formationof CuI nanoparticles embedded in thepolymer matrix. Yang Yang, Shuman Liu, and Keisaku Kimura
Chemistry Letters Vol.34, No.7 (2005) C-109
Copyright � 2005 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
904 Quantitative Evaluation of Spatial Uniform-ity in Spectral Characteristics for Large-areaColloidal Crystals
Toshimitsu Kanai, Tsutomu Sawada, and KenjiKitamura
906 Synthesis of a sec-Precursor and Analoguesof Macrolactin A
CO2EtOPMB
OTBS
O
O
26
OH
OO
7
O O
OH
HO
HO
macrolactin A (1)Xiangshu Xiao, Shukun Li, Xuebin Yan,Xuejun Liu, Rui Xu, and Donglu Bai
908 Effect of Roughness on Lipophobicity of aSurface Prepared Using Boehmite Nanopar-ticles and Fluoroalkylsilane
Droplet shape of oleic acid on thesuperlipophobic surface.
LaF3 : Yb3+, Er3+ nanoparticles were synthesized through a simple hydrothermal method. Thenanoparticles were well-crystallized and exhibited hexagonal structure with fine morphology, asindicated by powder X-ray diffraction, electron diffraction, and transmission electronmicroscopy. The nanocrystals present a bright-green upconversion luminescence under the 978nm excitation of a laser diode, which provides a promising upconversion phosphor foroptoelectronic or biological applications.
Gejihu De, Weiping Qin, Jisen Zhang, DanZhao, and Jishuang Zhang
916 Site-selective Coating of Polymer ThinFilm Prepared by the Ink-jet Method onthe Patterned Fluoroalkylsilane MonolayerSubstrate
Ink-jet deposition of polystyrene solution onto a fluoroalkylsilane monolayer/Si−OH patternedsubstrate gives line-patterned polystyrene thin film with ca. 500 nm line width (see Figure).The width and thickness of polystyrene thin film can be precisely controlled by the width oflyophilic region (Si−OH).
Masamichi Morita, Shigekazu Yasutake,Hirotaka Ishizuka, Jun Fukai, and AtsushiTakahara
918 A Simple Route for Preparing Radiolarian-like Mesoporous Silica from Water–DiethylEther Binary Solvent System
An interesting radiolarian-like silica sphere has been prepared from a water−diethyl ether
binary solvent system. SEM images (a) overview morphology of the bulky sphere silica.
Scale bar: 2 µm; (b) High magnification SEM image of one sphere exhibiting
radiolarian-like morphology. Scale bar: 290 nm.
a b
Haoxiang Lin, Kai Cui, Youwei Yao, QiangCai, Qingling Feng, and Hengde Li
920 Fabrication of Silver Probes for LocalizedPlasmon Excitation in Near-field RamanSpectroscopy
Yuika Saito, Takashi Murakami, YasushiInouye, and Satoshi Kawata
922 Highly Fluorescent Naphthalimide Deriva-tives for Two-photon Absorption Materials
Copyright � 2005 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
924 Regioregular Poly( p-alkoxyphenylene)s Pre-pared from Facile Solid-state OxidativeCoupling Polymerization
By grinding 1,4-dialkoxybenzene with anhydrous FeCl3 powder using a glasspestle in a mortar at ambient solvent-free condition, the regioregularpoly(p-phenylene)s (PPP) was obtained in high yield up to 90% in 30 min.
Wei Bin Bai and Cai Mao Zhan
Electronic Supporting Information
926 Simple and Efficient Ratiometric FluorescentProbes for Near-neutral pH in AqueousSolutions
pH Sensors
Yu Xiang and Ai-Jun Tong
Electronic Supporting Information
928 New Approach for Preparation of Silver–Polystyrene Heterogeneous Nanocompositeby Polyol Process
A schematic representation of the formation mechanism and TEM image of silver−polystyrenenanocomposite (scale bar: 100 nm).
Jong-Min Lee, Dae-Wook Kim, Young-Ho Lee,and Seong-Geun Oh
Electronic Supporting Information
930 A Facile Route to Fabricate Single-crystal-line Antimony Nanotube Arrays
932 Effects of Anion Species on Deintercalationof Carbonate Ions from Hydrotalcite-likeCompounds
Deintercalation of carbonate ionsfrom a hydrotalcite-like compound(MgAl-LDH) was investigatedusing salt-HCl mixed solutionswith sodium salts containingvarious monovalent anion species.The carbonate ions were mosteasily deintercalated for the systemcontaining Cl− or Br− anions.
0 1 2 3 4 50.0
0.2
0.4
0.6
0.8
1.0
HCl: 0.005N
Carbonate content of LDH after salt-HCl treatment
ClO4
-
NO3
-
I-
Cl-, Br-
Car
bo
nat
e co
nte
nt
Salt concentration (mol/L)
Nobuo Iyi, Kentaro Okamoto, Yoshiro Kaneko,and Taki Matsumoto
C-112 Chemistry Letters Vol.34, No.7 (2005)
Copyright � 2005 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
934 A Highly Selective Fluorescent Chemosensorfor Hg2þ in Aqueous Solution A novel selective chemosensor
(quinoxaline-bridged Schiff-basemacrocycle) for mercury ion was
in aqueous solution.
2+fluorescent quench toward Hg
designed and synthesized, and itexhibited a remarkable selective
N
N NH
NH
N
Nn
n = 1 n = 2
Lei Wang, Wai-kwok Wong, Lei Wu, andZao-ying Li
Electronic Supporting Information
936 Nearly Isotropic Two-dimensional Sheets ina Partially Oxidized Co(Pc)(CN)2 Salt (Pc= phthalocyaninato) Nearly isotropic two-dimensional
938 Synthesis, Characterization, and Intra-molecular Diels–Alder Reaction TandemDehydroaromatization of a Diene-diyne
Intramolecular Diels−Alder reaction tandem dehydroaromatization of diene-diyne 2 under heatingand irradiating resulted in formation of benzolactone. The reaction underwent the two steps:thermochemistry and photochemistry. The intermediate was confirmed using C60 as an intermediatecatcher. This reaction apparently represents a rare example of intramolecular Diels−Alder reactiontandem dehydroaromatization of diene-diyne under mild conditions without catalyst and oxidant.
hv- 2H
C CN
N
SCH3
H3C
CH3
OO
3
N
N
C SCCC CH3
O
CH3
O
2
hv
6 4
C CN
N
SCH3
H3C
CH3
OO
C CN
N
SCH3
H3C
CH3
OO
5
C CN
N
SCH3
H3C
CH3
OO
Shu-Zhi Liu, Guang-Shi Tang, Jing Wang, andXue-Hua Li
Electronic Supporting Information
940 Selective Detection of the Solid-state NMRSignals from the Bacteriochlorophyll aDimers in a Reconstituted Light-harvesting1 Complex The combination of solid-state NMR
harvesting 1 complex enabled the selectivedetection of the 13C resonance from
942 Synthesis and Properties of ConjugatedCopolymer Having Alternate Structure ofDiphenylanthracene and Allene
The conjugated anthracene−tetraphenylallene copolymer, synthesized by the Suzuki−Miyauracross-coupling reaction, showed an intense and pure blue fluorescence.
BO
OB
O
O Pd(PPh3)4, 2M NaOHaq
THF, reflux •+ •
Br
Br
n
Kazuaki Hiroki and Masashi Kijima
Chemistry Letters Vol.34, No.7 (2005) C-113
Copyright � 2005 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
944 Synthesis of Novel Dimeric Steroidal-nucleo-side Phosphoramidates
Some dimeric steroidal conjugated with 3′-azido-3′-deoxythymidine (AZT) as potentialmembrane-soluble pro-drugs of the phosphate forms have been synthesized in good yields.
PO
O
HN
O
O NO
N3
O
O
PO
O
NH
O
ONO
N3
O
O
HN CHCCH2
OO
CH2
CH2
CH2
NH
CH3
PO
O
HN
O
O NO
N3
O
O
PO
O
NH
O
ONO
N3
O
O
HN
NH
Sanhao Ji, Qiang Xiao, Yong Ju, and YufenZhao
946 A Novel Photodeposition Method in thePresence of Nitrate Ions for Loading of anIridiumOxide Cocatalyst forWater Splitting
h+e-
H2O
O2 H2O
H2
e-
NO3−
NO2−
etc.
NaTaO3:La photocatalyst
IrCl63-
IrO2
cocatalyst
Oxidative photodeposition of IrO2 in the presence of NO3
-Efficient Water Splitting
h+
IrO2
O2 evolution site
Akihide Iwase, Hideki Kato, and Akihiko Kudo
948 The Electroluminescence Spectrum ofChlorophyll a
300 400 500 600 700 800 900
0
200
400
600
800
1000
1200chlorophyll a (film)
PL
EL
Abs.In
tens
ity (
a.u.
)
Wavelength (nm)
Al
Glass
ITOchlorophyll a
hν
We fabricated ITO/chlorophyll a/Al junction,and measured the electroluminescencespectrum of chlorophyll a.
950 Molecular Orientation of Self-assembledMonolayer of Octadecanethiol on PlatinumSurface Studied by Femtosecond Broad-bandwidth Sum Frequency GenerationSpectroscopy
Hidenori Noguchi, Mikio Ito, and Kohei Uosaki
952 Structure of Bis(iodozincio)methane in THFSolution
Copyright � 2005 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
954 Silica Nanobeads-decorated Multi-walledCarbon Nanotubes by Vapor-phase Method
Silica nanobeads-decorated multi-walled carbon nanotubes were preparedby concise vapor-phase method. Theassembly can be an excellent platformfor the development of biosensors, orfor optical, magnetic, and catalyticapplications.
Wugang Fan and Lian Gao
956 Steep Spin-crossover and LIESST Effectof a New Fe(II) Complex with a TridentateLigand Derived from 2-Phenyl-4-formylimi-dazole and N-Methylethylenediamine
Haruna Torigoe, Hiroaki Hagiwara, ShinobuArata, Masahiro Yamada, and NaohideMatsumoto
Electronic Supporting Information
958 Novel Carbon Molecular Sieve MembranesDerived from Poly(phenylene oxide) and ItsDerivatives for Gas Separation
962 Highly Enantioselective (S)-Homoproline-catalyzed Michael Addition Reactions ofKetones to �-Nitrostyrenes
O NO2O
NO2
NH
CO2H• HCl
/
20 mol%
t-BuOH / r t / 20 h
77 _ 96 %ee
R
20 mol%R
R = H, Cl, CN, Me, MeO etc.
NMeO
+
Dai Terakado, Masako Takano, and TakeshiOriyama
Chemistry Letters Vol.34, No.7 (2005) C-115
Copyright � 2005 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
964 Low-temperature Synthesis of CrystallineTiO2 Nanorods: Mass Production Assistedby Surfactant
Crystalline and dispersed rutile TiO2 nanorods withdiameters of ≈6–8 nm and lengths of 40–100nm were synthesized via a low-temperature solutionprocess in the presence of nonionic surfactant P123.
Songwang Yang and Lian Gao
Electronic Supporting Information
966 A Bromine Adduct of 2,3,6,7,14,15-Hexa-methyl-9,10-distibatriptycene. The First Sti-bonium–Stiborate Zwitterion
Yosuke Uchiyama and Gaku Yamamoto
Electronic Supporting Information
968 Large-scale, Solution-phase Production ofMicrosized, Single-crystalline, HexagonalGold Microplates by Thermal Reduction ofHAuCl4 with Oxalic Acid Heating an aqueous oxalic acid/HAuCl4
solution results in the formation ofmicrosized, single-crystalline, hexagonalgold microplates on a large scale.
Xuping Sun, Shaojun Dong, and Erkang Wang
970 Selective Conversion of Dimethyl Ether toPropylene and Light Olefins over ModifiedH-ZSM-5
H3PO4/ZrO2/H-ZSM-5CH3OCH3 CH3CH2=CH2
Tian-Sheng Zhao, Tomokazu Takemoto,Yoshiharu Yoneyama, and Noritatsu Tsubaki
972 A Facile and One-pot Synthesis of HighAspect Ratio Anatase Nanorods Based onAqueous Solution
Single-crystalline anatase nanorods with high
aspect ratios have been synthesized through a
facile and one-pot method based on an aqueous
solution. The synthesized anatase nanorods have
pits, crevices, and dislocations on the surfaces
besides the steps, kinks, and terraces on the
side walls.Songwang Yang and Lian Gao
Electronic Supporting Information
C-116 Chemistry Letters Vol.34, No.7 (2005)
Copyright � 2005 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
974 Pressure Effect on the Magnetic Phase Tran-sition of Guest-tunable Weak Ferromagnets[Fe{N(CN)2g2(pyrimidine)](guest) (Guest =Ethanol and Pyrimidine)
The spontaneous magnetization of[Fe{N(CN)2}2(pm)](EtOH) was lost andrecovered, depending on the on- andoff-states of the external pressure (pm =pyrimidine).
Kenji Yuza, Takayuki Ishida, and TakashiNogami
976 Fabrication of 2D Ordered Porous ZnOFilms Using 3D Opal Templates by Electro-deposition
The prepared 3D opal templates are hydrophobic, whereas the substrates are hydrophilic. Duringthe electrodeposition, the hydrophobic nature of the template blocks the electrolyte frominfiltrating the interstices of the opal template excepting the monolayer contacting with thesubstrate. By this means, the electrodeposition process is confined.
Hongwei Yan, Yingling Yang, Zhengping Fu,Beifang Yang, Zhen Wang, Linsheng Xia,Shijun Yu, Shengquan Fu, and Fanqing Li
978 Hydrothermal Synthesis of Highly OrderedMicropompon of Lanthanum MolybdateNanoflakes
A novel micrometer-scalespherical structure composed ofnanoflakes, named micropompon,has been achieved in theLa2(MoO4)3 system through asimple surfactant-free hydrothermalapproach.
Yun-Peng Xu, Dan-Yu Jiang, Wen-Bo Bu, andJian-Lin Shi
980 Coupling of ICP-MS and MultitracerTechnique as a New Method to InvestigateDynamics of Various Elements in Soil-waterSystem
Certain time
Water phaseWater phase
Soil phaseSoil phase
M*M*
MM MMM
Mleaching sorption
M*
M*
M
M
M
MM
M
Water phaseWater phase
Soil phaseSoil phase
is measuredby Ge detector
is measured by ICP-MS
M*
M
Comparison of soil-water distribution of various elements from both directions.Comparison of soil-water distribution of various elements from both directions.
Satoshi Mitsunobu, Yoshio Takahashi, RiekoHirunuma, Hiromitsu Haba, and ShuichiEnomoto
982 Fabrication of Hierarchical Zeolitic Materialfrom Zeolite Nanoprecursors and Macromo-lecular Template
Sajo P. Naik, Anthony S. T. Chiang, HideshiSasakura, Yukio Yamaguchi, and TatsuyaOkubo
Chemistry Letters Vol.34, No.7 (2005) C-117
Copyright � 2005 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
984 Micro-patterning of LiMn2O4 ElectrodeUsing Sol–Gel Process for Lithium Micro-batteries
Objective lens
Precursor of LiMn2O4
Glass capillary
Au
Micro-dot
Kaoru Dokko, Jun-ichi Sugaya, HirokazuMunakata, and Kiyoshi Kanamura
986 Synthesis of �-MoO3 by Simple Evaporationof Molybdic Acid Solution Containing NitricAcid
Takanori Mizushima, Kazuya Fukushima, TranMai Huong, Hironobu Ohkita, and NoriyoshiKakuta
988 Solvation Dynamics at the Water/MicaInterface as Studied by Time-resolved Fluo-rescence Spectroscopy
Tomohisa Yamashita, Yousuke Amino, AkiraYamaguchi, and Norio Teramae
Electronic Supporting Information
990 The Template Polymerization of 12-Meth-acryloyloxydodecanoate Ions in LDH Clay
racemo
mesoorToshio Itoh, Mineo Yamashita, Tetsuya Shichi,Tatsuto Yui, and Katsuhiko Takagi
992 A Reagentless Biosensor of Oxygen Based onthe Direct Electrochemistry of Cytochrome con the Surface of Multiwalled Carbon Nano-tubes
Cytochrome c, adsorbed onto the surfaceof multiwalled carbon nanotubes, showedan enzyme-like activity to catalyze thereduction of oxygen.
Zheng-Zhi Yin, Guang-Chao Zhao, and Xian-Wen Wei
C-118 Chemistry Letters Vol.34, No.7 (2005)
Copyright � 2005 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
994 Highly trans-Selective Synthesis of �-Lactams by Tandem Phenoxide Anion-cata-lyzed Mannich-type Addition and Cycliza-tion
Eiki Takahashi, Hidehiko Fujisawa, ToshiharuYanai, and Teruaki Mukaiyama
996 Application of Sulfonated Polyimide Mem-branes to Direct Methanol Fuel Cells
0.4
0.5
0.6
0.7
Nafion 112
SPI
0.0 0.1 0.2 0.30.0
0.1
0.2
Nafion 112
SPI
Ece
ll (
IR-f
ree)
/ V
Current density / A cm 2
j (C
H3O
H)
/ A c
m 2
Tcell = 80 oC 1 M CH3OH//O2
112,
The use of sulfonated polyimide(SPI) membranes in a direct methanolfuel cell (DMFC) has provided thereduced methanol crossover about50% relative to that of Nafionleading to the enhanced cell voltage.
Jung Min Song, Naoki Asano, Kenji Miyatake,Hiroyuki Uchida, and Masahiro Watanabe
998 Z-Selective or Stereospecific AlkenylationReaction: A Novel Synthetic Method for�-Fluoro-�,�-unsaturated Esters
R1Se
FCO2Et
R2
R3OH
CO2EtF
SeR1
R2
R3 CO2Et
FH+R2COR3
(Z)-SelectiveMitsuhiro Yoshimatsu, Yoshinori Murase,Akinori Itoh, Genzoh Tanabe, and OsamuMuraoka
1000 A Novel Catalyst for the Selective Hydro-genation of Furfural to Furfuryl Alcohol
O CHO
+ H2
catalyst
T, p
O CH2OH
CuO particles
Xiang-Ying Hao, Wei Zhou, Jun-Wei Wang,Yin-Qing Zhang, and Shuangxi Liu
1002 Facile Synthesis of Nanocrystalline TitaniumCarbonitride via a Chemical MetathesisRoute
Nanocrystalline titanium carbonitride (TiC0.4N0.6) was successfully synthesized at lowtemperature (450 °C) via a chemical metathesis route using the readily attainable TiCl4, CaC2,and NaN3 as source materials.
Copyright � 2005 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1004 Size-tuning and Optical Properties ofHigh-quality CdSe Nanoparticles Synthe-sized from Cadmium Stearate
The size of CdSe nanoparticles obtainedby a modified synthethic mothod usingcadmium stearate can be tuned from2.0 ± 0.2 to 8.6 ± 2.3 nm, correspondingto blue to red emissions.
1010 Heteroferrocene: The Synthesis of Bis[(3a,4,5,6,6a-�)-1,3,4,5,6-pentamethylcyclopenta[d]-imidazo-2-thionoyl]iron(II)
Structural determination of theunusual hetero-substituted metalloceneby X-ray crystallographic analysis isdescribed. Preliminary electrochemicalstudies reveal that oxidation andreduction potentials for the subjectferrocene lie midway between those offerrocene and decamethylferrocene.Anthony J. Arduengo, III, Thomas P.
Bannenberg, Daniela Tapu, and William J.Marshall
Electronic Supporting Information
1012 Improved Thermal Stability of LiCoO2 byCyclotriphosphazene Additives in Lithium-ion Batteries
0 100 200 300 400
Temperature
Hea
t Flo
w/m
W
With additive
Without additive
Qing Zhang, Hideyuki Noguchi, HongyuWang,Masaki Yoshio, Masashi Otsuki, and TakaoOgino
C-120 Chemistry Letters Vol.34, No.7 (2005)
Copyright � 2005 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1014 Use of Tetraethylammonium Bis(oxalato)-borate as Electrolyte for Electrical Double-layer Capacitors
B
O
O O
OO
OO
O
N
C2H5
C2H5
C2H5
C2H5
The use of tetraethylammonium bis(oxalato)borate (TEABOB) as an electrolyte salt forelectrical double-layer capacitors (EDLCs) suppresses the fading of gravimetric capacitanceat high discharge rates as compared to that for tetraethylammonium tetrafluoroborate(TEABF4).
Takahito Ebina, Hiroyuki Uno, Saki Ishizawa,Noritoshi Nanbu, and Yukio Sasaki
1016 An Efficient Method for Alkylation ofAlcohols with Alkyl P,P-diphenyl-N-(meth-anesulfonyl)phosphinimidates
Ph2P
NMs
OR cat. Me3SiOTf+ ROR1R1OH
DME, rt
Hidenori Aoki and Teruaki Mukaiyama
1018 Formation of the Dianion and the Dimer of9,10-Distannaanthracene
Sn
Sn
Me
Me
–
–
Me
Me
Me
MeSn
Sn
SnSnMasaichi Saito, Natsumi Henzan, and
Michikazu Yoshioka
Electronic Supporting Information
1020 Tetrathiafulvalene Derivatives Recognitionof Copper with High Selectivity
New sensors based on D–A type tetrathiafulvalene derivatives are reported. These sensors candetect Cu2+ with high selectivity in the presence of other metal ions, including Fe2+, Co2+, Ni2+,and Zn2+ etc., which usually interfere the detection of Cu2+.
S
S
S
S
SMe
CN
CN
S
S
S
SMeSCN
CNNC
NC
1a
1b
MeS
SMe
From left to right: 1a; 1a + Cu2+; 1a + IMISYanyan Fu, Hongxiang Li, Caiming Liu,Wenping Hu, and Daoben Zhu
Electronic Supporting Information
1022 A Selective Synthesis of 3,6-Dihydro-7H-1,2,3-triazolo[4,5-d]pyrimidin-7-ones
RNH2
N
NN
Ar1
COOEt
N=C=NAr2
1. RNH2
N
NN
Ar1
N
N
OR
NHAr2
(R = H, Me)
2. EtONa N
NN
Ar1
N
N
OAr2
NHR
(R = Et, Pr, Bu, etc.)Jun-Feng Zhao, Chang Xie, Ming-Wu Ding,and Hong-Wu He
Electronic Supporting Information
Chemistry Letters Vol.34, No.7 (2005) C-121
Copyright � 2005 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1024 Molecular Aggregation Structure of Poly-(fluoroalkyl acrylate) Thin Films Evaluatedby Synchrotron-sourced Grazing-incidenceX-ray Diffraction
Poly(fluoroalkyl acrylate) [PFA-Cy, where y is the fluoromethylene number of the
in the cases of PFA-C y with y ≥ 8 in the surface and bulk region.
fluoroalkyl (Rf) groups] thin films were examined by in-plane grazing incidence X-raydiffraction. Diffraction peaks assigned to the hexagonal packing of Rf groups were measured
Koji Honda, Hirohiko Yakabe, TomoyukiKoga, Sono Sasaki, Osami Sakata, HideyukiOtsuka, and Atsushi Takahara
1026 Reversible 1,2-Migration of Aryl Groups onSilyl Ligands: Formation and Properties ofSilylenetungsten Complexes Stabilized byan External Base
W
COOC
Me2SiAr
N
NMe2
N NMe2
HSiMe2Ar
W
OC COSiMe2ArN
Me2N
Cp*(CO)3WMe
hν, 2−3 h
1Ar = Ph, pTol
hν 2
∆
Eiji Suzuki, Masaaki Okazaki, and HiromiTobita
Electronic Supporting Information
1028 Photoswitchable Magnetic Layer-by-LayerFilms Consisting of Azobenzene Derivativesand Iron Oxide Nanoparticles
1030 Adsorptive Removal of Bisphenol A byCalix[4]crown Derivatives: Significant Con-tribution of Hydrogen Bonding Interactionto the Control of Adsorption Behavior
1038 Highly Efficient Surface-enhanced Fluores-cence on Ag Island Film of Large Pseudo-tabular Nanoparticles
O
COOH
+HNC2H5
Cl-
(H5C2)2N
h ν
nm
Mitsuo Kawasaki and Shuki Mine
1040 Solvothermal Synthesis of Single-crystallineBaTiO3 Nanocubes in a Mixed Solution
The preparation of single-crystalline cubic perovskite BaTiO3 nanocubes by solvothermalmethod without surfactant was reported; the edge length of the BaTiO3 nanocubes is about40−90 nm.
Bo Hou, Zhijie Li, Yao Xu, Dong Wu, andYuhan Sun
Electronic Supporting Information
1042 Microwave-assisted One-pot Synthesis of �-Amino Phosphonates via Three ComponentCoupling on a Silica Gel Support
Silica gel SupportR1 C R2
O
+ R3NH2 + HOP(OR4)2 R1 C NHR3
R2
P(OR4)2O
MW
Zhuang-Ping Zhan, Rui-Feng Yang, andJun-Ping Li
Chemistry Letters Vol.34, No.7 (2005) C-123
Copyright � 2005 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1044 Fabrication and Characterization of Nano-structurally Flowerlike Aggregates of TiO2
via a Surfactant-free Solution Route: Effectof Various Reaction Media
Flowerlike submicrometer-scaled
structures have been successfully
free solution process. The fabricatednanostructures exhibit high
fabricated via a simple surfactant-
aggregates assembled with nanorod
photocatalytic activity in thephotodegradation of aqueousMethylene Blue solution.
1048 A New Polyquinoline Containing Spirobi-fluorene and Phenathiazine Units with Excel-lent Electroluminescence Properties
NH2
H2N
Ph
Ph
O
O DPPN
Ph
Ph
N
+S
NC6H13
H3COC COCH3
1
S
NC6H13
n
PQSP
m-Cresol
0 64 82 10 12
0
500
1000
1500
2000
0
50
100
150
200
Lu
min
ance
(cd
/m2 )
Voltage(V)
ITO/ PQSP/Alq/Al
Cu
rrent D
ensity (m
A/cm
2)
Bing Huang, Zuoquan Jiang, Jun Li, Jingui Qin,Gui Yu, and Yunqi Liu
1050 Synthesis and Size Control of Pt Nanocubeswith High Selectivity Using the AdditiveEffect of NaI
The synthesis and size control of Pt nanocubes stabilized by polyacrylic acid sodium salt (PAA)were carried out by varying the reaction temperature and the growth rate between the {111} and{100} faces with the addition of NaI; the shape selectivity was about. 70–80% and the cubicsize was controllable between 7.5–10.5 nm.
50 nm
Dav = 10.5 nmRcubic = 69 %T = 20 °C
Dav = 8.6 nmRcubic = 80 %T = 40 °C
Dav = 7.5 nmRcubic = 86 %T = 60 °C
Dav: Average Cubic Size, Rcubic: Cubic Rate, T: Reaction Temperature
50 nm50 nmMami Yamada, Syusaku Kon, and MikioMiyake
1052 Suppression of Electrochemical Decomposi-tion of Electrolyte in Lithium Ion Batteries:An Electrolyte Containing Acetate Group
Parvati Ghimire, Hiroyoshi Nakamura, MasakiYoshio, Hideya Yoshitake, and Koji Abe
C-124 Chemistry Letters Vol.34, No.7 (2005)
Copyright � 2005 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1054 Iron-catalyzed Silylcyanation of Aldehydesand Ketones with Silyl Cyanide Preparedfrom Silane and Acetonitrile
Et3SiH + MeCN
Et3SiCN
OSiEt3
CCN
R'R
O
R R'
Fe cat.
Masumi Itazaki and Hiroshi Nakazawa
Electronic Supporting Information
1056 Photoreductive Defluorination of Hexa-fluorobenzene on Metal-doped ZnS Photo-catalysts under Visible Light Irradiation
