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Chinese Journal of Structural Chemistry 2010年第8期29卷 1265-1269页

作者：王婷婷谢吉民夏昌坤吴云龙荆俊杰 school of Chemistry and chemical engineering Jiangsu University State Key Laboratory of Coordination Chemistry Nanjing University

A new cyanide-bridged bimetallic assembly [Mn（3-meosalpn）（H2O）]2[Fe（CN）5NO]（1） was obtained by the reaction of [Fe（CN）5NO]2-with [Mn（3-meosalpn）]＋,and characterized by elemental analysis,IR and single-crystal X-ray structure *** complex crystallizes in the monoclinic system,space group P21/c with a = 12.992（5）,b = 13.274（6）,c = 14.644（6） ,β = 115.198（4）o,V = 2285.2（16）3,Z = 2,C43H44FeMn2N10O11,Mr = 1042.61,Dc = 1.515 g/cm3,F（000） = 1072,μ = 0.928 mm-1,S = 1.052,the final R = 0.0347 and wR = 0.0957 for 17377 observed reflections（Ⅰ 〉 2σ（Ⅰ））.X-ray single-crystal diffraction analysis reveals that 1 has a trinuclear molecular structure,in which the two [Mn（3-meosalpn）（H2O）]＋ cations are linked by the central [Fe（CN）5NO]2-anion via two trans ***,the two [Mn（3-meo-salpn）（H2O）]＋ cations and [Fe（CN）5NO]2-anion are connected into a one-dimensional zigzag chain through hydrogen bonding interactions.

关键词： manganese complex Schiff base pentacyanidonitrosylferrate(Ⅱ) crystal structure

chemical component analysis of volatile oil in drug pair Herba Ephedrae-Ramulus Cinnamomi by GC-MS and CRM

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Journal of Central South University of Technology 2007年第4期14卷 509-513页

作者：陈勇李晓如赵君周涛邹桥 The Second Xiangya Hospital Central South University school of Chemistry and chemical engineering Central South University

Active volatile components in drug pair(DP)Herba Ephedrae-Ramulus Cinnamomi(HE-RC),single drug HE and RC were analyzed by gas chromatography/mass spectrometry(GC/MS),chemometric resolution method(CRM)and overall volume *** means of CRM,the two-dimensional data obtained from GC-MS instruments were resolved into a pure chromatogram and a mass spectrum of each chemical *** total,97,62,and 78 volatile chemical components in volatile oil of HE,RC,and DP HE-RC,were respectively determined qualitatively and quantitatively,accounting for 90.08%,91.62%,and 89.76% total contents of volatile oil of HE,RC,and DP HE-RC *** is further demonstrated that the numbers of volatile components of DP HE-RC are almost the sum of those of two single drugs,but some relative contents of them are *** new components,such as 1,6-dimethylhepta-1,3,5-triene,tetracyclo[4.***.1.1(2,5).0(9,10)]deca-3,7-diene,globulol and(E,E)-6,10,14-trimethyl-5,9,13-pentadecatrien-2-one are found in DP HE-RC because of chemical reactions and physical changes during decoction.

关键词： drug pair (DP) Herba Ephedrae-Ramulus Cinnamomi chemometric resolution method (CRM) volatile oil gas chromatography/mass spectrometry (GC-MS)

GAG-containing nucleotides as mediators of DNA-silver clusters and iron-DNA interplay

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Chinese chemical Letters 2016年第3期27卷 395-398页

作者： Tian-Tian Chen Qiu-Yun Chen Ming-Yang Liu school of Chemistry and chemical engineering Jiangsu University State Key Laboratory of Coordination Chemistry Nanjing University

New types of fluorescence DNA-based silver nanoclusters（DNAn-Ag NCs, n = 1, 2, 3c, 4c, 5c） were synthesized by C3T-rich nucleotides as templates. It is found that the assembly of DNAn-Ag NCs with nucleotides containing GAG sequences produce silver clusters with an enhanced red emission. Results indicate that GAG is the good enhancer of DNAn-Ag NCs constructed by C3T-rich nucleotides. The fluorescence titration reveals that enhanced red emission is sensitive to Fe（Ⅲ/Ⅱ） ions with the formation of non-emission nanoclusters. Thus, the GAG-containing nucleotide can be an enhancer for the emission of silver clusters with C3T-rich nucleotide and a mediator of the iron-cluster interplay.

关键词： DNA Silver cluster Fluorescence Iron

Phase-transfer catalysis of a new cationic gemini surfactant with ester groups for nucleophilic substitution reaction

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Chinese chemical Letters 2014年第8期25卷 1169-1173页

作者： Dong-Qing Xu Zhong-Wen Pan Center of Analysis and Measurement Anhui Science and Technology University school of Chemistry and chemical engineering Anhui University

A highly effective phase transfer of a quaternary ammonium gemini surfactant with ester groups（（diethylhexanedioate） diyl-a,v-bis（dimethyl dodecyl ammonium bromide） referred to as 12-10-12）was synthesized with high yield and characterized by infrared spectroscopy, elemental analysis and1 HNMR. Then, 12-10-12 was used as a phase transfer catalyst to study the catalytic effect on the reaction of anhydrous sodium acetate and 4-methylbenzyl chloride. The possible catalytic mechanism and the influence of surfactant concentration, temperature and type are also discussed. The experimental results showed that the catalysis efficiency was more active than the traditional, single-chained surfactant,tetrabutyl ammonium bromide. It also revealed that the reaction was first-order with respect to the concentration of 4-methylbenzyl chloride. The concentration of 4-methylbenzyl chloride grew linearly with the concentration of 12-10-12 and as the reaction temperature increased. The optimum reaction time was 7 h.

关键词： Gemini surfactant Phase-transfer catalyst Kinetic model

Hydrothermal Synthesis,Crystal Structure and Spectroscopic Investigations of [Y(C_6NO_2H_5)_3(H_2O)_2]_n(1.5nZnCl_4)·nH_2O with Unprecedented Polycationic Chains

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chemical Research in Chinese Universities 2008年第5期24卷 529-533页

作者： FANG Xiao-niu CHEN Wen-tong LIU Dong-sheng school of Chemistry and chemical engineering Jinggangshan University Ji＇an 343009 P. R. China

A new heterometallic 4f-3d complex [Y（C6NO2H5）3（H2O）2]n（1.5nZnCl4）·nH2O（1）, was synthesized via a hydrothermal reaction and structurally characterized. Complex 1 crystallized in the monoclinic system with space group P21/c： a=0.94847（9） nm, b=2.0947（2） nm, c=1.6001（2） nm, β=104.467（2）°, V=3.0781（5） nm3, Mr=823.04, Dc=1.776 g/cm3, S=1.009, μ（Mo Kα）=3.603 mm-1, F（000）=1632, R=0.0787, and wR=0.2273. Complex 1, with four formula units in a cell, was characteristic of a one-dimensional polycationic chain-like structure. Photoluminescent investigation showed that the title complex displayed a strong emission in the blue region, which was attributed to the intraligand π-π＊ transition of the nicotinic ligands. Optical absorption spectrum of complex 1 revealed the presence of a wide optical bandgap of 4.17 eV.

关键词： Crystal structure Yttrium Nicotinic acid Rare earth Zinc

Expedient copper-catalyzed borylation reactions using amino acids as ligands

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Chinese chemical Letters 2015年第3期26卷 373-376页

作者： Meng-Yan Liu Shi-Bin Hong Wei Zhang Wei Deng Research Center of Nano Science and Technology Shanghai University school of chemical and engineering Shanghai Institute of Technology

Amino acids were found to be as good ligands for copper-catalyzed borylation reactions of primary and secondary alkyl halides,and the B2pin2 acted as bi-boron source for *** high reaction efficiency and mild conditions make the new catalyst system a useful alternative to the recently developed methods for the preparation of alkylboronic esters.

关键词： catalyzed alkyl esters boron reagent halide entries moiety aromatic cyclohexane

Effects of Aluminum Doping on the Microstructure and Electrical Properties of ZnO- Pr_6O_(11)-Co_3O_4-MnCO_3-Y_2O_3 Varistor Ceramics

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Journal of Wuhan University of Technology(Materials Science) 2014年第2期29卷 246-249页

作者：王茂华 ZHANG Bo LI Gang YAO Chao school of Chemistry and chemical engineering Changzhou University Jiangsu Province Key Laboratory of Fine Petrochemical Industry

Abstract： The effect of Al_2O_3 doping on the microstructure and electrical properties of the ZnO- Pr_6O11-CO_3O_4-MnCO_3-Y_2O_3 system was investigated in the range of 0.0-0. lmol%. The results reveal that Al_2O_3 doping has slight influence on the densification process. The microstructure of the ceramics comprises of ZnO phase, ZnAl_2O_4 spine phase and Pr-rich phases. The addition of Al_2O_3 greatly affects the electrical properties. The varistor voltage （E_1mA/cm^2） of ZPCMYAl samples decreases over a wide range from 5 530 V/cm to 1 844 V/cm with the increasing Al_2O_3 content. The nonlinear exponent（a） increases with the increasing Al_2O_3 content to 0.01mol%, whereas it is decreased by the further doping. The ZPCMYAI-based varistor ceramics with 0.01mol% Al_2O_3 exhibit the best electrical properties, with the nonlinear exponent （ct） attaining the highest value of 33.4 and the lowest leakage current of 2.7 μA. The capacitance-voltage （C-V） measurement shows that the donor density （Nd） at the grain boundaries increase from 1.58×10^18 to 3.15×10^18 cm^-3, the barrier height （Чb） increases from 1.60 to 2.36 eV, and the depletion layer width （t） decreases from 24.9 to 21.6 nm.

关键词： microstructure electrical properties Al_2O_3 doping varistors

Completely Green Synthesis of Ag Nanoparticles Stabilized by Soy Protein Isolate under UV Irradiation

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Journal of Wuhan University of Technology(Materials Science) 2012年第5期27卷 852-856页

作者：刘仁刘晓亚 The Key Laboratory of Food Colloids and Biotechnology Ministry of EducationSchool of Chemical and Material EngineeringJiangnan University

A completely green pathway for the preparation of Ag nanoparticles was proposed, by using soy protein isolate （SPI） as stabilizer under UV irradiation and H2O as the environmentally benign solvent throughout the preparation. Transmission electronic microscopy （TEM） and zeta potential characterization results indicated that the Ag nanoparticles were stable and well dispersed with an average diameter about 13 nm, and X-ray diffraction （XRD） analysis of SPI/Ag composite nanoparticles confirmed the formation of metallic silver. UV-Vis spectrum showed that the Ag nanoparticles dispersion solution had the maximum absorbance at about 430 nm due to surface plasmon resonance of the Ag nanoparticles. Infrared spectroscopy confirmed that the polypeptide backbone of SPI was not cleaved during the conjugation process and that some active amino groups were oxidized. The SPI/Ag composite nanoparticles have excellent antibacterial activity against two representative bacteria, staphylococcus aureus （Gram positive） and escherichia coli （Gram negative） in the presence of SPI.

关键词： soy protein isolate Ag nanoparticles UV irradiation

Synthesis and Crystal Structure of (E)-Ethyl 3-Keto-18β-glycyrrhetinate 3-Oxime

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Chinese Journal of Structural Chemistry 2007年第9期26卷 1013-1016页

作者：蔡超于朝云任宏王西照王建武 school of Chemistry and chemical engineering Shandong University Hebei University Health Science Center Hebei University

A novel derivative of glycyrrhetinic acid, （E）-ethyl 3-keto-18β-glycyrrhetinate 3- oxime C32H49NO4 （Mr = 511.72）, was synthesized and structurally characterized by IR, 1^H NMR and single-crystal X-ray diffraction. It belongs to monoclinic, space group P21, with a = 12.4897（12）, b = 7.3190（7）, c = 15.9944（14）A, β = 94.833（2）o, V = 1456.9（2）A^3, Z = 2, Dc = 1.167 g/cm^3, μ = 0.075 mm^-1, F（000） = 560, the final R = 0.0449 and wR = 0.1122. A total of 7486 reflections were collected, of which 2785 were independent （Rint = 0.0199） and 2605 were observed with I 〉 2σ（I）. There exists an intermolecular hydrogen bond which helps to stabilize the crystal structure.

关键词： synthesis crystal structure ethyl 18β-glycyrrhetinate oxime

Two Coordination Compounds Bearing Bis（2-dimethylaminoethyl） Ether： Syntheses, Crystal Structures and Catalytic Application to the Henry Reaction

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chemical Research in Chinese Universities 2018年第3期34卷 358-362页

作者： LIU Chao LIU Yijie ZHANG Lili JIANG Kun ZHANG Li school of Chemistry and chemical engineering Suzhou UniversRy Suzhou 234000 P. R. China

Two novel coordination compounds, namely [Cu2（BDMAEE）（CH3COO）4],,（1） and [Ni（BDMAEE）Cl2]（2） [BDMAEE=bis（2-dimethylaminoethyl） ether], have been synthesized and characterized by IR, elemental analysis, PXRD and X-ray single crystal diffraction. In compound 1, the central Cu（Ⅱ） ion is coordinated with four oxygen atoms and one nitrogen atom, forming a distorted square pyramidal geometry. The asymmetric units composed of one Cu（Ⅱ） ion, two acetates and a half of BDMAEE are connected to form an infinite 1D chain structure by the bridging acetate and the BDMAEE. In compound 2, the central Ni（Ⅱ） ion is coordinated with one oxygen atom, two chlorine anions and two nitrogen atoms, forming a distorted square pyramidal geometry. The compounds exhibited excellent catalytic properties in the Henry reaction of nitromethane with some aromatic aldehydes, and the optimized reaction conditions were obtained.

关键词： Copper compound Nickel compound Crystal structure Henry reaction