bluuebunny/crossref_metadata_2025_split huggingface dataset:
Recent Advances in Organic Reactions Catalyzed by Lanthanide (III) Complexes
Authors: Rui‐Fang Chen , Chang‐Tao Qian 
Published: September 2010

AbstractLanthanide compounds have been attracting much attention in organic synthesis. Chiral Ln‐substituted BINOL have been widely studied in several asymmetric organic reactions. LnCl3 and Ln(OTf)3 have been expected to serve as Lewis acids and have been applied to many important synthetic reactions in a one‐pot manner. Ln(O‐i‐Pr)3 exhibits some basic characters, which also can be utilized in some special organic transformation. This article deals with some lanthanides(III) complexes promoted organic reactions, which we have recently developed.
A Novel Octahedral Hexasilver(I) Cluster: Ag6[SSCN(n‐C4H9)2]6
Authors: Zhang Wei‐Guang , Zhong Yun , Tan Min‐Yu , Liu Wei‐Sheng , Su Cheng‐Yong 
Published: September 2010

AbstractThe first crystal structural report of a AgDTC complex (DTC = dialkyldithiocarbamate, R = n‐butyl) presented in this paper shows that it is a hexanuclear species. The structural arrangement for the DDP (dialkyldithiophosphate) ligands is different from that of Cu6(DDP)6, but is the same as that of Ag6‐[SSP(O‐i‐Pr)2]6.
Studies on the Binding Mode of Pinacyanol Chloride to Nucleic Acids
Authors: Wu Hui‐Ling , Li Wen‐You , Miao Kun , He Xi‐Wen , Yu Chun‐Feng , Huang Xi‐Tai , Liang Hong 
Published: September 2010

AbstractThe interaction of pinacyanol chloride (PC) with nucleic acids has been investigated by a series of experiments. Extensive hypochromism, appreciable peak shifts, isosbestic points and new peaks of the product of binding to nucleic acids in the spectra were observed. They showed that the interaction between PC and nucleic adds occurred. The results from absorption spectra of DNA, DNA melting, electrophoresis and fluorescence polarization studies have indicated that PC binds to DNA in nonintercalative way. Consistent with the nonintercalation, the studies of fluorescence titration and absorption titration specified that the binding of PC to nucleic acids occurred by an outside stacking binding, in which nucleic acids served for acting templates. The fact that the new absorption peaks of bound PC at ca. 485 nm are just close to the absorption bands of H‐aggregate of PC at high concentrations without DNA further supports the outside stacking binding mode. In addition, other evidence indicated that the interaction between PC and nucleic acids is not purely electrostatic.
Synthesis of Benzo [a] phenoxazin‐5‐one Derivatives and Their Interactions with DNA
Authors: Zhang Peng , Meng Ji‐Ben , Long Jiang , Matsuura Teruo , Wang Yong‐Mei 
Published: September 2010

AbstractThe spectroscopic properties of benzo[a]phenoxazin‐5‐one derivatives (3a‐3m) including newly synthesized 3k‐3m from 4‐nitrosoaniline hydrochlorides and ethyl 1,3‐dihydroxy‐2‐naphthoate were studied. Compound 31 was converted into a covalent product with DNA, which had a blue shift of the fluorescence maximum. Compounds 3a‐3k were found to undergo interaction with DNA and their complexes with DNA had a red shift of the fluorescence maximum and showed increasing melting temperature of DNA. Compound 3m‐DNA had a blue shift of the fluorescence maximum to 3m and showed decreasing melting temperature of DNA.
Antioxidant Activity of Ecdysteroids from Serratula strangulata
Authors: Dai Jing‐Qiu , Cai Yu‐Jun , Shi Yan‐Ping , Zhang Yong‐Hong , Liu Zhong‐Li , Yang Li , Li Yu 
Published: September 2010

AbstractOne new ecdysteroid, (24R)‐24‐(2‐hydroxyethyl)‐20‐hydroxyecdysone (3), as well as three known ecdysteroids, has been isolated from Chinese herb Serratula strangulata and these compounds 1–4 showed effective antioxidant activity on AAPH‐induced hemolysis of human RBC and Fe2+ + cysteine‐induced lipid peroxidation of liver microsome.
Synthesis, Structure and Reactivity of Lanthanocene Complexes
Authors: Qian Chang‐Tao , Zhu Cheng‐Jian 
Published: September 2010

AbstractA variety of lanthanocene complexes, e. g. chlorides, hydrocarbyls, amides, hydrides and divalent derivatives, were synthesized by using a series of designed cyclopentadienyl, indenyl and fluorenyl ligands with ring bridges or donor‐functionalized sidearms. X‐Ray crystallographic analyses reveal the formation of intramolecular coordination bonds between central metals and heteroatoms (O, N) in sidearms or bridging chains. Some applications of these complexes are also discussed in this account.
A Triple Cluster Platinaborane: [(P(2)Ph3)Pt(1)(μ2‐B(11)‐(B(9)‐OC(CH3)3‐B10H10))Pt(7)(P(1)Ph3)]2
Authors: Hu Chun‐Hua , Yong Wei , Dou Jian‐Min , Sun Jie , Hu Ke‐Ji , Jin Ruo‐Shui , Zheng Pei‐Ju 
Published: September 2010

AbstractThe title platinaborane, [(P(2)Ph3)Pt(l)(μ2‐B(11)‐(B(9)‐OC‐(CH3)3‐B10H10)Pt(7)(P(1)Ph3)]2, a triple cluster, which is a binuclear Pt complex dimmer, was prepared. Single crystal X‐ray diffraction analysis shows that a Pt(7) atom served as a common vertex between cluster |PtB10| and |Pt4|. The |Pt4| cluster is of parallelogram.
Synthesis of Nanorods of Crystalline Co3O4 Using Carbon Nanotubes as Templates
Authors: Wu Hua‐Qiang , Shao Ming‐Wang , Wei Xian‐Wen , Gu Jia‐Shan , Qu Mei‐Zhen 
Published: September 2010

AbstractSynthesis of cobalt oxide (Co3O4) nanorods was achieved by templating against carbon nanotubes via wet chemical technique. The products with crystalline structure were mainly composed of Co3O4 nanorods with diameters in the range of ca. 75–100 nm and lengths in the range of 0.12–1 μm, and were characterized by XRD, TEM, SAED and HRTEM.
Enantiomer Separation of α‐Dimethyl Dicarboxylate Biphenyl and Related Biphenyl Compounds by Normal Phase HPLC on Polysaccharide Based Chiral Stationary Phases
Authors: Liu Yue‐Qi , Han Xiao‐Qian , Qi Bang‐Feng , Liu Chun‐Hui , Li Yong‐Min , Chen Li‐Ren 
Published: September 2010

AbstractCellulose tris(4‐methylphenylcarbamate), amylose tris(3,5‐dimethylphenylcarbamate) and amylose tris (phenylcarbamate) were prepared by the method reported by Okamoto and were coated onto an aminopropylated mesoporous spherical silica gel. These final products were used as chiral stationary phases of high performance liquid chromatography for the eighteen structurally related biphenyl compounds. The resolution was made using normal‐phase methodology with a mobile phase consisting of n‐hexane‐alcohol (ethanol, 1‐propanol, 2‐propanol or 1‐butanol). The effects of various aliphatic alcohols in the mobile phase were studied. The structural features of the solutes that influence their k′were discussed. A dominant effect of trifluoroacetic acid on chiral separation of acidic solutes was noted.
First Synthesis of Mosquito Larvicidal Butenolides I and II
Authors: Jiang Sheng , Wu Yu‐Lin , Yao Zhu‐Jim 
Published: September 2010

AbstractUtilizing aldol condensation and β‐elimination as the key steps, butenolides I and II in excellent enantiomeric purity have been concisely synthesized for the first time. According to the rotation difference between synthetic samples and natural products, the rotations were corrected by the calculation upon HPLC measurements. In addition, an efficient way to synthesize methyl pentadec‐14‐enoate was developed.
Flavonoids from Carthamus tinctorius
Authors: Li Feng , He Zhi‐Sheng , Ye Yang 
Published: September 2010

AbstractTwo new flavonoids, (2S)‐4′,5‐dihydroxyl‐6,7‐di‐O‐β‐D‐glucopyranosyl flavanone (1) and 6‐hydroxykaempferol 6,7‐di‐O‐β‐D‐glucopyranoside (2), were isolated from Carthamus tinctorius. Their structures were elucidated by spectroscopic means including 2D NMR, ESIMS and CD.
Microwave‐prompted Reaction of Cinnamonitrile Derivatives with 5,5‐Dimethyl‐1,3‐cyclohexanedione
Authors: Tu Shu‐Jiang , Miao Chun‐Bao , Gao Yuan , Feng You‐Jian , Feng Jun‐Cai 
Published: September 2010

AbstractIn the reactions of α‐cyanocinnamonitrile or β‐cyano‐β‐carbothoxy styrene with 5,5‐dimethyl‐1,3‐cyclohexanedione in the presence of ammonium acetate under microwave irradiation without solvent, the 2‐amino‐5,6,7,8‐tetrahydro‐5‐oxo‐4‐aryl‐7,7‐dimethyl‐4H‐benzo‐[b]‐pyran derivatives were obtained. However, in the reactions of arylidenecyanoacetamide with 5,5‐dimethyl‐l,3‐cyclohexanedione under the same reaction conditions, the acridine derivatives were obtained. The structures of the products were determined by single crystal X‐ray diffraction analysis.
A New Denoising Technique for Capillary Electrophoresis Signals
Authors: Wang Ying , Mo Jin‐Yuan 
Published: September 2010

AbstractCapillary electrophoresis (CE) is a powerful analytical tool in chemistry. Thus, it is valuable to solve the denoising of CE signals. A new denoising method called MWDA which employs Mexican Hat wavelet is presented. It is an efficient chemometrics technique and has been applied successfully in processing CE signals. Useful information can be extracted even from signals of S/N = 1. After denoising, the peak positions are unchanged and the relative errors of peak height are less than 3%.
Simple and Clean Synthesis: Tin‐mediated Allylation of Carbonyl Compounds in Water
Authors: Zhou Cun‐Liu , Zha Zheng‐Gen , Wang Zhi‐Yong , Wu Ji‐Hui , Zhang Jia‐Hai 
Published: September 2010

AbstractTin‐mediated allylation of aldehydes or ketones in distilled water gives rise to the corresponding homoallyl alcohols in high yield without assistance such as heat, supersonic and acidic media.
Reaction Mechanism Investigation Using Vibrational Mode Analysis for the Multichannel Reaction of CH3O + CO
Authors: Zhou Zheng‐Yu , Cheng Xue‐Li , Guo Li 
Published: September 2010

AbstractOn the basis of the computed results got by the Gaussian 94 package at B3LYP/6‐311 + +G * * level, the reaction mechanism of CH3O radical with CO has been investigated thoroughly via the vibrational model analysis. And the relationships among the reactants, eight transition states, four intermediates and various products involved this multichannel reaction are elucidated. The vibrational mode analysis shows that the reaction mechanism is reliable.
Bioelectrochemical Response and Kinetics of Choline Oxidase Entrapped in Polyaniline‐Polyacrylonitrile Composite Film
Authors: Xue Huai‐Guo , Shen Zhi‐Quan 
Published: September 2010

AbstractA novel choline oxidase electrode was constructed by entrapping choline oxidase into polyaniline‐polyacrylonitrile composite film. The enzyme film was prepared by in situ electropolymerization of aniline into porous polyacrylonitrile‐coated platinum electrode in the presence of choline oxidase. The enzyme electrode exhibited sensitive and stable electrochemical response to choline. The kinetics analysis showed that the mass transport is partially rate‐limiting. The influences of pH, applied potential and temperature on the response of the enzyme electrode were also described.
Cross‐Coupling of Aryl Iodides with Malononitrile Catalyzed by Palladium N‐ Heterocyclic Carbene Complex System
Authors: Gao Cheng‐Wei , Tao Xiao‐Chun , Liu Tao‐Ping , Huang Ji‐Ling , Qian Yan‐Long 
Published: September 2010

AbstractEight N‐heterocyclic carbenes (NHC), generated in situ from their imidazolium salts, as ligands of palladium complexes were used for the catalytic coupling of iodobenzene with malononitrile anion. It was found that 1,3‐bis (2,4,6‐trimethylphenyl) ‐imidazolium chloride (IMesHCl)‐Pd2 (dba) 3 catalytic system has the highest activity to obtain phenyl malononitrile among the imidazolium salts. The substituted iodoarenes reacted with malononitrile anions by using the catalytic system to give cross‐coupling products in yields from 50% to 96%.
Action of the Selenomorpholine Compounds on the Bacterium Growth by Microcalorimetry
Authors: Li Xi , Liu Yi , Wu Jun , Qu Song‐Sheng 
Published: September 2010

AbstractThe action of β‐(N‐selenomorpholine) ethyl phenyl ketone hydrochloride and 4‐(N‐selenomorpholine)‐2‐butanone hydrochloride on Escherichia coli and Staphylococcus aureus was studied by microcalorimetry. Differences in their capacities to affect the metabolism of this bacterium were observed. The kinetics shows that the selenomorpholine compounds had action on the metabolism process of Escherichia coli and Staphylococcus aureus. The rate constant (k) of the studied bacterium in the presence of the drugs are concentration‐dependant. The growth rate constants decrease with an increase in the mass of the selenomorpholine compounds, but their relationship is different. As deduced from the rate constant (k) of the studied bacterium (in log phase) and the half inhibitory concentration (IC50), the experimental results reveal that the studied selenomorpholine compounds all have good antibiotic activity and better antibacterial activity on Staphylococcus aureus than on Escherichia coli.
Diterpenoids from Isodon sculponeatus
Authors: Jiang Bei , Mei Shuang‐Xi , Zhao Ai‐Hua , Sun Han‐Dong , Lu Yang , Zheng Qi‐Tai 
Published: September 2010

AbstractFurther investigation on the leaves of Isodon sculponeatus afforded two new ent‐kaurane diterpenoids, sculponeatins J and K. Their structures were elucidated on the basis of their spectral properties, as well as X‐ray crystallographic analysis. The cytotoxicities of these two new compounds against human tumor cells K562 and T24 were also tested, and sculponeatin J showed significant inhibitory effects with IC50 values less than 1.0 μg/mL.
Study of the Complexation Behavior of Calixarene with Transition Metal Cations by UV‐vis and Fluorescent Spectra
Authors: Yang Jun‐Lin , Yu Qi Zheng , An Li‐Na , Chen Chuan‐Feng , Lin Hong‐Zhen , Bai Feng‐Lian , Huang Zhi‐Tang 
Published: September 2010

AbstractA new fluorescent compound based on calix [4] arene skeleton was synthesized. Its complexation ability with transition metal ions, such as Fe3+, Co2+, Ni2+, Cu2+, Zn2+ and Ag+, was investigated by UV‐vis and fluorescent spectra.
1,3‐Diphenyl‐5‐(9‐phenanthryl)‐2‐pyrazoline(DPPhP): An Excellent Hole‐Transport Material for Use in Organic Light‐Emitting Diodes
Authors: Ma Chang‐Qi , Zhang Lian‐Qi , Zhou Jia‐Hong , Wang Xue‐Song , Zhang Bao‐Wen , Cao Yi , Bugnon P. , Schaer M. , Nüesch F. , Zhang De‐Qiang , Qiu Yong 
Published: September 2010

AbstractAn excellent hole‐transport material, 1, 3‐diphenyil‐5‐(9‐phenanthryl)‐2‐pyrazoline (DPPhP) for OLEDs was studied. This compound not only offers high glass transition temperature (Tg = 96 °C), good film forming ability, and high HOMO energy level, but also displays excellent hole‐transport property. The electroluminescent device with a simple structure of ITO/DPPhP (60 nm)/AlQ (60 nm)/LiF (0.8 nm)/Al shows an external quantum efficiency as high as 1.6%.
[H2N(C2H4)2NH2]4 (H3O) [PMo2VMo6VIV4IVO40(VIVO)2] · H2O: A New Highly Reduced, Bicapped Pseudo‐Keggin Vanadylpolymolybdophosphate
Authors: Li Yang‐Guang , Wang En‐Bo , De‐Hu Ge‐Ji , Zhang Hong , Hu Chang‐Wen , Hu Ning‐Hai , Jia Heng‐Qing 
Published: September 2010

AbstractA new vanadylpolymolybdophosphate, [H2N (C2H4)2 NH2]4 (H3O) [PMo2VMo6VIV4IVO40 (VIVO)2] · H2O, was hydrothermally synthesized and structurally characterized by elemental analyses, IR, UV‐vis, XPS, ESR spectra, and single crystal X‐ray diffraction analysis. The compound contains an unusual highly reduced pseudo‐Keggin type polyoxoanion with nine negative charges and exhibits an interesting phosphorus‐centered alternate layer arrangement of molybdenum and vanadium oxides.
Mapping the Binding Site of P53 on UBC9 by NMR Spectroscopy
Authors: Lin Dong‐Hai 
Published: September 2010

AbstractHuman UBC9 is a member of the E2 family of proteins. However, instead of conjugating to ubiquitin, it conjugates to a ubiquitin homologue SUMO‐1 (also known as UBL1, GMP1, SMTP3, PICT‐1 and sentrin). The SUMO‐1 conjugation pathway is very similar to that of ubiquitin with regard to the primary sequences of the ubiquitin activating enzymes (E1), the three‐dimensional structures of the ubiquitin conjugating enzymes (E2), and the chemistry of the overall conjugation pathway. The interaction of p53 and UBC9, the E2 of the SUMO‐1 pathway, has been studied by nuclear magnetic resonance spectroscopy. A peptide corresponding to the nuclear localization domain of p53 specifically interacts with UBC9 and this interaction is likely to be important for conjugation of p53 with SUMO‐1. The largest chemical shift changes on UBC9 occur at residues 94 and 129–135. This region is adjacent to the active site and has significant dynamic behavior on the μs—ms and ps—ns timescales. Correlation of chemical shift changes and mobility of these residues further suggest the importance of these residues in substrate recognition.
Influence of a Hydrophobic Environment on the Structure of Arginine‐Carboxylate Salt Bridge
Authors: Feng Yong , Liu Lei , Mu Ting‐Wei , Guo Qing‐Xiang 
Published: September 2010

AbstractThe exact structure of an arginine‐carboxylate salt bridge in different chemical environments remains a controversial problem. In the present work, the zwitterionic and neutral forms of arginine‐carboxylate salt bridge were studied by the B3LYP/6‐311G (d, p)//PM3 method. It turns out that the neutral forms are more stable than the zwitterionic counterparts in gas phase. However, when bound by α‐cyclodextrin, the zwitterionic forms become more stable than the corresponding neutral ones. It is suggested that the hydrophobic environment provided by the cydodextrin cavity leads to such behavior. Therefore, the salt bridge still could be in a zwitterionic form in the hydrophobic interior of the real proteins.
Effect of Chemical Treatment on TiO2 Particles by IMPS
Authors: Yin Feng , Lin Yuan , Lin Rui‐Feng , Li Xue‐Ping , Xiao Xu‐Rui 
Published: September 2010

AbstractThe photodegradation reaction rate of CHCl3, in TiO2 particulate suspension was improved significantly by HCl‐treatment. The effect of HCl‐treatment on the photocatalytic activity of TiO2 was studied in a PEC cell by using Intensity‐Modulated Photocurrent Spectroscopy (IMPS). The magnitude of photocurrent response and the characteristic frequencies of the upper and lower semicircles in the complex plane of IMPS response were analyzed, and the cathodic and anodic reaction processes of photogenerated holes and electrons were discussed. The increases in the cathodic and anodic photocurrent response and in the time constants of both cathodic and anodic reaction processes indicate that HCl‐treatment leads to the improvement of the photocatalytic activity of TiO2 and a change of the photocatalytic kinetic mechanism.
Prediction of Decomposition Temperature for Lanthanide Complexes Involving Cyclopentadienyl and Benzohydroxamic Acid Ligand by ANNs
Authors: Sun Yi‐Min , Ling Qing , Wan Yu‐Bao , Wang Xiu‐Ran , Yu Hai‐Yin 
Published: September 2010

AbstractThe decomposition temperatures of the lanthanide organic complexes (η5‐C5H5)2 Ln(C6H5CONHO) involving cyclopentadienyl and benzohydroxamic acid ligands were calculated and predicted by the model based on ANNs (artificial neural networks) method. The comparison was carried out between results from ANNs method and traditional regression method. It is proved that ANNs could be used more efficiently for the prediction of decomposition temperature of lanthanide organic complexes.
Standard Enthalpies of Formation for Solid Complexes of Chromium Chloride with L‐α ‐ Amino Acids
Authors: Yang Xu‐Wu , Chen San‐Ping , Gao Sheng‐Li , Shi Qj‐Zhen 
Published: September 2010

AbstractThe solid complexes of Cr(AA)2 Cl3 · nH2O of CrCl3, with L‐α‐amino acids (AA= Val, Leu, Thr, Met, Arg, Phe, Try and His) have been prepared in 95% EtOH medium, and characterized structurally by elemental analysis, chemical analysis, IR spectra and TG‐DTG. The constant‐volume combustion energies of the complexes have been determined by RBC‐II type rotating‐bomb calorimeter. The standard enthalpies of formation of the complexes have been calculated as well, which are (‐2543.16 ± 3.71) (Val), ( −2561.32 ± 4.06) (Leu), (‐2284.02 ± 2.95) (Thr), (‐1418.77 ± 4.60) (Met), (‐3218.91 ± 4.67) (Arg), (‐2643.90 ± 5.02) (Phe), (‐1707.18 ± 3.23) (Try) and (‐2838.05 ± 3.45) (His) kJ/mol, respectively.
Photophysical Properties and Photoinduced Electron Transfer between [60]Fullerene‐Containing Cyclic Sulphoxide [ C60‐C6H8SO] and Tetrathiafulvalene (TTF) by Laser Flash Photolysis
Authors: Zeng He‐Ping 
Published: September 2010

AbstractPhotoinduced electron transfer (PET) processes between C60‐C6H8SO and Tetrathiafulvalene (TTF) have been studied by nanosecond laser photolysis. Quantum yields (ϕet) and rate constants of electron transfer (ket) from TTF to excited triplet state of [60] fullerene‐containing cyclic sulphoxide in benzonitrile (BN) have been evaluated by observing the transient absorption bands in the NIR region. With the decay of excited triplet state of [60] fullerene‐containing cyclic sulphoxide, the rise of radical anion of [60] fullerene‐containing cyclic sulphoxide is observed.
Transient Absorption Spectral Characterization of Electron Transfer between Fullerenes (C60/C70) and N, N, N′, N′‐Tetra (p‐methylphenyl) −4, 4′‐diamino‐1, 1′‐diphenyl Sulphide (TPDAS)
Authors: Zeng He‐Ping 
Published: September 2010

AbstractIn search of new systems with a photoexcited redox pair which exhibits a strong and stable photoinduced absorption band to understand the photophyscial and photochemical properties of electron transfer between fullerenes ( C60/C70 ) and organic donor [N, N, N′, N′‐tetra (p‐methylphenyl) −4, 4′‐diamino‐1, 1′‐diphenyl sulphide (TPDAS) ], we studied characteristic absorption spectra in the near‐IR region obtained from 532 nm nanosecond laser flash photolysis of a mixture of the fullerenes (C60/C70) and TPDAS in polar solvents. When fullerenes (C60/C70) were photoexcited, the rise of the radical anion of fullerenes (C60/C70) with the rapid decay of their excited triplet states were observed in benzonitrite. It can be deduced that the electron transfer reaction does take place from TPDAS to excited triplet state of fullerenes (C60/C70). The rate constants (ket) and quantum yields (ϕet) of this process have been also evaluated.
Investigation of Electrochemical Charging Behaviors of “Naked” Gold Nanoparticles Ensembles in Aqueous Media
Authors: Cheng Wen‐Long , Han Xiao‐Jun , Peng Zhang‐Quan , Dogn Shao‐Jun , Wang Er‐Kang 
Published: September 2010

AbstractGold nanoparticles were immobilized onto the electrode surface by simple self‐assembly technique. Interestingly, the ensembles of these nanoparticles exhibit quantized charging behaviors in aqueous solution. Possible mechanism for such behaviors was proposed.
Flow‐injection Chemiluminescence Sensor for the Determination of Gallic Acid by Immobilizing Luminol and Periodate on Anion‐exchange Resin
Authors: Zhang Si‐Chun , Zhou Guo‐Jun , Ju Huang‐Xian 
Published: September 2010

AbstractA novel chemieluminescence (CL) sensor for the determination of gallic acid combined with flow injection analysis was developed by electrostatically immobilizing luminol and periodate on anion‐exchange resins respectively. Gallic acid was sensed by its enhancing effect on the weak CL reaction between luminol and periodate, which were eluted from the ion exchange column. The possible reaction mechanism of the CL system was suggested and discussed. The response of the sensor to gallic acid concentration was linear over the range of 8.0 × 10−9‐1.0 × 10−6 mol/L with a detection limit of 6.5 × 10−9 mol/L (3°). The relative standard deviation (RSD) for 7 repetitive determinations of gallic add (1.0 × 10−7 mol/L) was 1.8%. The sensor could be used for over 400 times determination with a good reproducibility.
Synthesis, Crystal Structure and Photophysical Properties of a Novel Molecule Containing a Triarylamine and an Oxadiazole Units
Authors: Yu Hai‐Tao , Zhang Wan‐Xuan , Bai Dong‐Ren , Meng Ji‐Ben 
Published: September 2010

Abstract2‐{3‐[2‐(4‐N, N‐Di‐p‐tolylaminophenyl)ethenyl]phenyl}‐5‐(4‐bromophenyl)‐1,3,4‐oxadiazole (1) containing triarylamine and 2,5‐diaryi‐1,3,4‐oxadiazole units was prepared by Homer Witting reactions. The structure of the compound was confirmed by 1H NMR, IR, MS and elemental analyses. The crystal structure of 1 was determined by X‐ray diffraction analysis. UV absorption spectra and photoluminescent spectra were measured.