bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study on electric property at interface of positive sol of magnesium aluminum hydroxide
Authors: Han Shu‐Hua , Xu Shan‐Ping , Hou Wan‐Guo , Sun De‐Jun , Zhang Chm‐Guang , Wang Guo‐Ting 
Published: September 2010

AbstractThe isoelectric point (IEP) and zero point of charge (ZPC) of magnesium aluminum hydroxide were studied by electrophoresis method, potentiometric titration method, and elemental analysis. Results showed that the charge of magnesium aluminum hydroxide was composed of variable charge and permanent positive charge. Because of the permanent positive charge, the IEP and ZPC obtained were higher than calculated. The IEP decreased and ZPC increased as X increased.
Electrochemical characteristics of poly(o‐phenylendiamine) film electrodes in phosphatic solution
Authors: Ye Bao‐Xian , Zhang Wu‐Ming , Zhou Xing‐Yao 
Published: September 2010

AbstractThe electrochemical characteristics of poly(o‐phenylendiamine) (POPD) film modified electrodes have been investigated using different electrochemical techniques. The main interest is focused on the effect of potential and film thickness on the electrode process. Good agreement has been found for the apparent diffusion coefficient estimated by chronocoulometry and impedance spectroscopy. The charge transfer process within POPD films is diffusion processes at negative and positive overpotentials and electron hopping mechanism at formal potential. The POPD film conductivity of the oxidized state is better than that of the reduced state. For all electrode processes, the H+ may penetrate the film/electrolyte interface and take part in charge transfer or protonation‐deprotonation of phenazine rings.
Lead‐promoted Barbier‐type reaction of aldehydes with propargyl bromides in aqueous media
Authors: Zhou Jing‐Yao , Sun Guang‐Fu , Zhang Ming‐Fu , Jia Yu , Wu Shi‐Hui 
Published: September 2010

AbstractThis paper reports that the reaction of the propargyl bromides with aldehydes promoted by powdered lead in aqueous media. The selectivity and possible mechanism of these reactions are discussed. The yields of products for reaction of propargyl bromide are 31∼71%. The ratios of allenyl alcohol and homopropargyl alcohol are 1:1.5 to 1:3. The product for reaction of phenyl propargyl bromide is allenyl alcohol and the yields are 52∼84%.
A new variant of Knorr's pyrrole synthesis
Authors: Zhang Yan , Jiang Yun‐Zhen , Liang Xiao‐Tian 
Published: September 2010

AbstractThe reaction between ethyl 3‐bromopyruvate and p‐substituted anilines was found to involve the unexpected participation of acetone (solvent) forming N‐aryl‐5‐methyl‐pyrrole‐3‐carboxylates. The influence of p‐substituents of aniline and the feasibility with other ketones were studied. N‐aryl‐indole‐3‐carboxylate (17) was synthesized successfully with this method. The unique character of p‐methoxy‐aniline in this reaction was discussed.
Proton transfer across conducting polypyrrole membrane separated by two electrolyte solutions
Authors: Wang Han‐Ming , Yu Ze‐Mu , Wang Er‐Kang 
Published: September 2010

AbstractElectrochemical behavior of the transfer of H+ across polypyrrole membrane (PPM) was studied. The transfer process was quasi‐reversible and mainly diffusion‐controlled. PPM electropolymerized in water solution has better reversibility than that in CH3CN solution for the transfer of H
+. The transfer process of H+ across the two kinds of PPM indicated that the PPM electrochemically polymerized was of asymmetry.
Synthesis of the optically pure 5,5″‐dihydroxy‐7,7″‐dimethoxy‐8,8″‐biflavone and its derivatives
Authors: Zhang Fang‐Jie , Lin Guo‐Qiang 
Published: September 2010

Abstract( ± )‐5,5″‐Dihydroxy‐7,7″‐dimethoxy‐8,8″‐biflavone (( ± )‐l) was resolved into its optically pare forms via the formation and recrystallization of its (2R)‐ and (2S)‐1‐(4‐toluenesulfonyl)prolylate, and the methylated derivatives of (+)‐ and (‐)‐1 were also prepared. The absolute configurations of all these 8,8″‐biflavones have been confirmed by their CD spectra.
Catalytic oxidation of cyclohexene to cyclohexanone by a triple system in acidic aqueous acetonitrile medium
Authors: Li Hua‐Ming , Ye Xing‐Kai , Yang Xiang‐Guang , Wu Yue 
Published: September 2010

AbstractThe catalytic oxidation of cyclohexene to cyclohexanone using Pd(OAc)2/HQ/FePc wan investigated in an acidic aqueous solution of acetonitrile. The role of each component of this system in the oxidation of cyclohexene was explored by means of UV‐VIS, IR., XPS spectroscopy and cyclic voltammetry, respectively. Based on the experimental results, the mechanism of the oxidation of cyclohexene catalysed by Pd(OAc)2/HQ/FePc was elucidated.
Chiral separation of triazole pesticide enantiomers by high performance liquid chromatography
Authors: Yang Guo‐Sheng , Gao Ru‐Yu , Wang Qin‐Sun , Shen Han‐Xi 
Published: September 2010

AbstractFour triazole enantiomers of diclobutrazol (erythro form) (1), paclobutrazol (erythro form) (2), diniconazole (3) and uniconazole (4) have been separated by high performance liquid chromatography (HPLC) on chiral stationary phase (CSP) OA‐4700. Chromatographic data and a chiral recongnition model are presented for the separation of these pesticide enantiomers. The influence of column temperature and composition of mobile phase have been described.
Bright red electroluminescent devices based on a soluble lanthanide complex Eu(DBM)3(phen)
Authors: Dong‐Ge Ma , Dai‐Ke Wang , Zhi‐Yong Hong , Xiao‐Jiang Zhao , Xia‐Bin Jing , Fo‐Song Wang , Bin Li , Hong‐Jie Zhang , Shu‐Bin Wang 
Published: September 2010

AbstractElectroluminescent devices with PVK film doped with Eu(DBM)3(phen) and PBD were fabricated. The device structure of glass substrate/indium‐tin‐oxide/PPV/PVK:Eu(DBM)3(phen):PBD/Alq3/Al was employed. The emissive layer was formed by spin‐casting method. A sharply red electroluminescence with a maximum luminance of 114.4 cd/m2 was achieved at 42 V.
Intermolecular interaction between squarylium cyanine and porphyrin
Authors: Wei Zhao , Yuan‐Jun Hou , Xue‐Song Wang , Bao‐Wen Zhang , Yi Cao 
Published: September 2010

AbstractIn this paper, the interaction between squarylium cyanine and porphyrin in chloroform is investigated by absorption and fluorescence spectroscopy. Emphasis has been put on the mechanism of intermolecular energy transfer. The overlap integral J between the absorption spectrum of squarylium cyanine and the fluorescence spectrum of porphyrin was calculated, which reveals that the singlet‐singlet energy transfer may occur &om porphyrin to squarylium cyanine in solution. In comparison of the observed rate constant [k11q=6.1×1013 (mol/L)−1·s−l] for fluorescence quenching of porphyrin by squarylium cyanine with the diffusion rate constant in chloroform [kdif=1.1×1010 (mol/L)−1·s−1] and the rate of energy transfer [ket≤6.7×104 (mol/L)−1·s−1 in the experimentally dilute solutions] estimated from Forster formula, the possibility of energy transfer by electron exchange or/and coulombic mechanism could be excluded. So it has been definitely convinced that the intermolecular energy transfer between them is performed through long‐distance radiative mechanism which is in good agreement with the results in experimentally dilute concentration (<10−4 mol/L). Meanwhile, the fluorescence of squarylium cyanine can also be quenched by porphyrin, which suggests that photoinduced charge transfer with other process may occur. In the contrast, the results can be partly contributed to understand the reason why the energy transfer efficiencies of porphyrin ø11/et are always lower than its fluorescence quenching efficiencies øIq.
Synthesis and crystal structure of a Ni(II) complex with 1,7‐diaminoethyl‐4,10‐dimethyl‐1,4,7,10‐tetraazacyclododecane
Authors: Yong Liu , Guo‐Ping Xue , Cheng‐Tai Wu , Bao‐Sheng Luo 
Published: September 2010

AbstractThe crystal structure of a Ni(II) complex with 1,7‐diaminoethyl‐4,10‐dimethyl,4,7,10‐tetraazacyclododecane has been determined by X‐ray diffraction method. Crystal data for NiC14H36Br2N6O: monoclinic, space group P21/n, a=0.8848(3), b=1.4656(3), c=1.5828(3) nm, β=90.47(3)°, V=2.0525 nm3, Z=4. The two pendant primary amino groups are located in cis positions in the complex, their nitrogen atoms and the four nitrogen donors of the fold tetraaza‐macrocycle coordinate Ni(II) ion, forming a distorted octahedral geometry.
A facile convergent route to dendritic polyols
Authors: Ling‐Ling Weng , Ying‐Chun Chen , Hu Zheng 
Published: September 2010

AbstractThe synthesis of monodisperse dendrimers triggers a great challenge to the synthetic chemistry. Here, we reported a facile convergent approach to the synthesis of the first generation, six‐directional ether‐bond polyols with better controlled structures and ease of purification.
Design and synthesis of some new C2‐symmetric chiral disulfonamides from aminoacids and the application in diethyl zinc addition to benzaldehyde
Authors: Jian‐Qiang Wang , Min Zhong , Guo‐Qiang Lin 
Published: September 2010

AbstractNine C2‐symmetric chiral disulfonamides were designed and synthesized from L‐valine, L‐phenylalanine and L‐leucine respectively via one‐pot ring opening of aziridines. The application of these disulfonamides as catalyst in the addition of diethyl zinc to benzaldehyde in three reagent systems: Ligand‐Ti(OiPr)r‐Et2Zn; Ligand‐Ti(O'Pr)d‐HzO‐Et2Zn; Ligand‐Et2Zn was also described.
Photoluminescence quenching of quantum‐confined cadmium sulfide clusters by norbornadiene derivatives
Authors: Pu‐Hui Xie , Xue‐Song Wang , Bao‐Wen Zhang , Yi Cao 
Published: September 2010

AbstractInfluence of norbornadiene and its derivatives on the photoluminescence (PL) of quantum‐confined cadmium sulfide clusters (Q‐CdS) prepared in reverse micelles wm investigated. It was found that norbornadiene‐2,3‐dicarboxylic acid (3) and its monopotassium salt (4) quenched PL intensity by 77% and 62%, respectively, whereas its dipotassium salt (a), norbornadiene (1) and norbornadiene‐2,3‐dimethylcarboxylate (2) had no effect on PL intensity. The formation constants for adducts formed between defect sites at the surface of Q‐CdS clusters and 3 or 4 were also determined. PL quenching effect was attributed to the presence of ionizable proton which is considered to be able to trap photogenerated electrons and remove them from possible decay process. Measurements of the PL decay by single photon counting technique also supported these steady‐state observations.
Synthesis and reactivity of 3‐(trichlorogermyl)propanoic acid and 3‐(triphenylgermyl) propanoic acid
Authors: Qiang Zeng , Xian‐Shun Zeng , Qing‐Min Wang , Tao Cui , Zhong‐Biao Zhang 
Published: September 2010

Abstract3‐(Trichlorogermyl)propanoic acid (1a) reacts with phenylmagnesium bromide in molar ratio 1:4 to give 3‐(triphenylgermyl)propanoic acid (2a). In the compounds 1a and 2a the β‐carboxylic functional group shows some unusual properties when they react with excess of phenylmagnesium bromide. The compound 1a reacts with phenylmagnesium bromide in molar ratio 1:5 to give phenyl 2‐(triphenylgermyl)ethylketone (3a) and in molar ratio 1:6 to give 1,1‐diphenyl‐3–(triphenylgermyl)propanol (4a). The compound 2a reacts with phenylmagnesium bromide in molar ratio 1:2 to give 3a and in molar ratio 1:3 to give 4a also. Dehydration of the compound 4a with dilute hydrochloric acid seems especially easy. Moreover, the compound la reacted with phenylmagnesium bromide in molar ratio 1:6, then the mixture was treated with dilute hydrochloric acid to give 1,1‐diphenyl‐3 (triphenylgermyl)‐1‐propene (5a) in one pot reaction. Alkyl Ge–C bond in the compound 5a can be cleaved selectively by lithium aluminium hydride (LiAlH4) in good yield.
Energy relationship and the polarization of C60 cage in the endohedral complexes (X@C60)
Authors: Zhi‐Jin Xu , Chuan‐Bao Zhu , Ji‐Min Yan 
Published: September 2010

AbstractIn this paper, we carry out the calculation on the system (X@C60)(X=Li, Na, K, Rb, Cs; F, C1, Br, I), where the position of X changes along 5 typical symmetry directions. For the calculation of quantum chemistry we use EHMO/ASED method, for the calculation of molecular mechanics we uee Buckingham potential (exp‐6‐1) function, and for the calculation of thermo‐chemical cycle we use individually isolating the processes such as the structure variation, charge transfer and charge distribution, and their interactions etc. The calculation results show that (1) In the region of radius τ≈0.2 nm of the C60 cage, the potential field is nearly spherical; (2) Except for Li and Na, the systems are the most stable with minimum energies at the center of C60 cage. For Li and Na, the systems are the most stable with minimum energies at τ≈0.16 run and τ≈0.13 nm, respectively. In view of the interactive region of chemical bonds, the interactions between X and the C60 cage do not belong to the classical chemical bonds; (3) The non‐bonding interaction between the X and C60 cage are not purely electro‐static, in which the electro‐static interactions only occupy ∼90% at mat on an average. The repulsion owing to the overlap of the electron cloud and the attraction owing to the dispersion can not be neglected. These two interactions determine the variations of size and trend of the system energies with r; (4) The polarization due to the position of X deviating from the center of C60 cage plays an important role at the moat stable positions of Li and Na.
Detection of complement C4 with a piezoelectric immunosensor
Authors: Ji‐Ming Hu , Ren‐Jun Pei , Yi Hu , Yun‐E Zeng 
Published: September 2010

AbstractA piezoelectric immunosensor has been developed for the detection of complement C4. Anti‐C4 antibody was immobilized onto the gold electrodes of a 9 MHz AT‐cut piezoelectric crystal. The coated crystal with the physical adsorption method to immobilize antibody showed the better results than the polyethyleneimine adhesion, glutaraldehyde cross‐linking method with respect to sensitivity and reproducibility. The antibody‐bound crystal with the physical adsorption method was successfully used for the detection of human complement C4 in the concentration range of 0.1—10 μg/mL for 40 min incubation time. The immunosensor system had good selectivity, and other materials in human Serum did not interfere the detection remarkably. The crystal could be regenerated nearly 15 times when the bound materials on the crystal surface were eluted by strong acid and strong alkali solutions and subsequently cleaned in a ultrasonic cleaner.
Synthesis of homochiral spiro [4.4]nonane‐l,6‐diols
Authors: Yao‐Zhong Jiang , Minga Yan , Jian Sun , Wen‐Hao Hu , Zhi Li , Ai‐Qiao Mi , Albert S. C. Chan 
Published: September 2010

AbstractHomochiral cis, cis‐; cis,trans and trans,trans‐spiro[4,4]‐nonane‐1,6‐diols were prepared via diastereoselective reduction of enantiomerically pure spiro[4.4]nonane‐l,6‐dione (1) with the corresponding reducing agents: lithium n‐butyldiisobutylaluminium hydride for cis,cis‐diol (2) with 88% yield; BH3·THF for cis, trans‐diol (8) with 91% yield; LiAlH4 for trans,trans‐diol (4) with 15% yield.
Synthesis and mesomorphic properties of novel tetrafluorinated biphenyl acetylene liquid crystals with a blue phase
Authors: Xi‐Min Chen , Hui‐Yong Yin , Yue‐Lian Xu , Jian‐Xun Wen 
Published: September 2010

AbstractFive novel tetrafluorinated biphenyl acetylene molecules containing two chiral centres in the side chain were synthesized. The mesomorphic behaviour of these compounds was characterized by differential scanning calorimetry (DSC) and optical polarizing microscopy. All these compounds exhibit cholesteric and blue phases.
Catalytic asymmetric borane reduction of prochiral ketones using chiral camphor‐derived mercapto‐alcohols
Authors: Yong‐Gui Zhou , Xue‐Long Hou , Li‐Xin Dai 
Published: September 2010

AbstractEasily available D‐(+)‐camphor‐derived chiral mercapto‐alcohols 2 and 3 were employed for catalytic asymmetric borane reduction of aromatic ketones. Moderate enantioselectivities with e.e. 20.2–72.1% were obtained with 10 mol% catalyst. Opposite asymmetric induction was achieved' when mercapto‐alcohols 2 and 3 were used.
Isoform‐selective modulators for metabotropic glutamate receptors and protein kinase C: Synthesis and biological evaluation
Authors: Da‐Wei Ma 
Published: September 2010

AbstractThe synthetic studies for some known modulators of metabotropic glutamate receptors (mGluRs) such as (S)‐αM4CPG, (1S,3R)‐ACPD, L‐CCG‐I are described. Based on the structure of αM4CPG several new conformationally constrained analogues are design ed and synthesized. Among them APICA is a selective antagonist for group II mGluRs. Also, a new benzolactam‐V8 analogue is found to have better isoform‐selectivity for protein kine C family. Three different protocols for synthesizing benzolactam‐VS analogues are developed to meet the requirement for delivering more analogues to test.
Microviscosity in modified Nafion membranes measured by fluorescence probes
Authors: Jing‐Qu Guan , Chen‐Ho Tung 
Published: September 2010

AbstractSodium or quaternary ammonium modified Nafion membranes in forms of Nafion‐Na+, Nafion‐NMe+4:, Nafion‐NEt+4 and Nafion‐NBu+4: have bean prepared by neutralizing Nafion‐H+ membrane with NaOH or tetraalkylammonium hydroxide aqueous solution. Intramolecular excimer formation and fluorescence polarisation methods using 1,3‐di(1‐pyrenyl)propane and acridine orange‐as probes respectively have been employed for measurements of the microviscosity within those modified Nafion membranes. Results show that the probes are located in the fluorocarbon/water interface in the cluster of the membranes and the microviscosities around the probe molecules an in the range of ca. 120–1200 cp and increase in the order of Nafion‐Na+ <Nafion‐NMe+4<Nafion‐NEt+4<Nafion‐NBu+4. Furthermore, the microviscosity values of these membranes in dry form an higher than those in wet form.
Synthesis and characterization of a one‐dimensional polymeric copper (II)‐tetrathioporphyrazine
Authors: Zheng‐He Peng , Tian‐You Peng , Zi‐Bin Qin 
Published: September 2010

AbstractThe title polymer PCuS4P5 was synthesied by reaction of 2,3‐dicyano‐5,6‐dihydro‐1,4‐dithiin, pyromellitic dianhydride and urea with cuprous salt in optimized gentle method. The structure and properties of the PCuS4P5 were characterized by elemental analysis, X‐ray powder diffraction, IR, UV‐Vis, fluorescence and EPR spectra and variable‐temperature magnetic susceptibility. The polymer is black sublimable crystallite and the degree of polymerisation has been found to be n>4. The PCuS4P5 in H2SO4 exhibits intensive absorption bands at 236, 342, 656 and 767 nm and intensive fluorescence band at 410 nm or 464 nm under the excitation of the ultraviolet light of a determined wavelength at room temperature. It has been found that the polymer exhibits a weaker antiferromagnetic interaction (J=−2.1 cm−l, μaff=1.68 B.M.) with an apparent spin S<1/2 in the ground state and its conductivity σ298K is 1.01×10−5 S·cm−1 at 13.73 MPa.
Intramolecular stacking interaction in mixed‐ligand complexes containing ATP4− and aromatic N‐heterocyclic ligands
Authors: Xue‐Yi Le , Fu‐Hai Wu , Xiao‐Feng He , Fen‐Yun Song , Liang‐Nian Ji 
Published: September 2010

AbstractThe stability constants of the binary ML2+ and ternary M(ATP)L2− complexes, where L=Iq (isoquinoline) or BIm (benzimidazole) and M=Zn2+ or Cd2+, have been determined by potentiometric pH titration in aqueous solution at I=0.1 mol/L (NaClO4), T=25°C. The stability of the ternary complexes characterized by ΔlogKM=logKM(ATP)LM(ATP)L‐ logKMML corresponding to the equilibrium M(ATP)2− + ML2+ = M(ATP)L2− + M2+ in higher than what would be expected on statistical grounds. The increase may be related to the stacking interaction between the aromatic ring of the ligands L and the purine moiety of ATP4–. 1H NMR studies of Zn2+/ATP4−/L confirm the presence of stacking in the ternary complexes. It is concluded that the strength of the intramolecular stacking interaction ia dependent on the structure of the aromatic ring of the ligand L and the formation of a metal ion bridge. Possible implications an discussed briefly.
A new synthesis of 1,6‐anhydrohexopyranoses
Authors: Chuan Li , Biao Yu , Guang‐Tao Zhang , Yong‐Zheng Hui 
Published: September 2010

AbstractA new method for the preparation of l,6‐anhydrohexopyranoses was developed, which mainly involved a “one pot” condensation of 1,6‐hydroxyls of the corresponding hexopyranoses under N, N'‐sulfuryldiimidazole and sodium hydride.
Synthesis and properties of the copper(II) complexes with stable radical
Authors: Bai‐Wang Sun , Su‐Qi Li , Dai‐Zheng Liao , Zong‐Hui Jiang , Ai‐Jian Liu , Shi‐Ping Yan , Geng‐Lin Wang 
Published: September 2010

AbstractFour novel copper(II) complexes have been synthesized, namely Cu(hfac)2NITPhNO2 (1), Cu(hfac)2NITPhCH3 (2), Cu(pfpr)2NITPhNO2, (3) and Cu(pfpr)2NITPhCH3 (4), where hfac=hexafluoro‐acetylacetonate, pfpr=pentafluoropropionate, NITR=2‐R‐4,4,5,5‐tetramethyl‐4,5‐dihydro‐1H‐imidazolyl‐1‐oxyl‐3‐oxide. (R=4‐nitrophenyl, 4‐methylphenyl). These complexes were characterized by elemental analyses, IR, electronic spectra and molar conductance. The temperature‐dependent magnetic susceptibility of complexes 1 and 3 have been studied in the 4–300 K range, giving the exchange integral J=10.56 cm−l for complex 1 and J=−30.9 cm−l for complex 3.
27‐Nor‐triterpenoid saponins from Adina rubella
Authors: Gao‐Jun Fan , Zhi‐Sheng He 
Published: September 2010

AbstractThree new 27‐nor‐triterpenoid saponins named rubenorside A (l), rubenorside B (2) and rubenorside C (9) were isolated from the roots of Adina rubella. Their structures were characterized as pyrocincholic acid 3β‐O‐α‐L‐rhamnopyranosyl(28→ 1)‐β‐D‐glucopyranosyl ester (1), pyrocincholic acid 3β‐O‐β‐D‐glucopyranosyl(1→2)‐β‐D‐fucopyranosyl(28→1)‐β‐D‐glucopyranosyl(1→6)‐β‐D‐glucopyranosyl ester (2) and pyrocincholic acid 3β‐O‐β‐D‐glucopyranosyl(1→2)‐β‐D‐glucopyranosyl (28→ 1)‐β‐D‐glucopyranosyl( 1→6)‐β‐D‐glucopyranosyl ester (S) by spectral methods, especially 2D NMR experiments.
Initiating system Me3SiCl/AlCl3 for cationic polymerization of 1,3‐pentadiene in toluene
Authors: Jian‐Guo Deng , Yu‐Xing Peng 
Published: September 2010

AbstractCationic polymerization of 1,3‐pentadiene (PD) initiated by trimethylsilyl chloride/aluminium chloride (TMSCI/AlCl3) was carried out in toluene at 30°C. The polymer yield was increased by the addition of TMSCl. However, introduction of TMSCl gave rise to a drop of the polymer molecular weight. Kinetic results demonstrated that the polymerization initiated by TMSCl/AlCl3 was 2.8 times faster than that induced by AlCls alone. Various ethers and ketones were used to mediate the initiating system TMSCI/AICl3. The polymer yield and molecular weight of the polymer were decreased in the presence of ether. Ketones and ethers had different effects on the polymerization, and the polymer yield and molecular weight were lower than those initiated by AlCls alone or TMSCl/AlCl3. Structural evidence revealed that the polymerization was indeed initiated by AlCl3 and HCl resulting from hydrolysis of TMSCl by adventitious water.
A total synthesis of (+)‐preussin and its 5‐epimer
Authors: Han‐Qing Dong , Guo‐Qiang Lin 
Published: September 2010

Abstract(+)‐Preussin (1) and its 5‐epimer were synthesized from the divinylcarbinol (3) with Sharpless asymmetric epoxidation of 3 and the oxidative cyclization of 9 with PDC as the key steps.
Quantitative structure‐retention relationship for photosystem II inhibitors in RP‐HPLC
Authors: Qin‐Sun Wang , Ling Zhang , Huar‐Zheng Yang , Hua‐Yin Liu 
Published: September 2010

AbstractUsing factor analysis (principle component) and multiple linear regression methods, 4 solute‐related structure parameters were selected from 10 structure parameters and the relationships between the retention properties (logk') of 25 2‐cyano‐3‐methylthio‐3‐substituted amino‐acrylates and the 4 parameters were established. There is a good agreement between the observed k' values and the predicted k' values.