摘要：
Nickel electrode, indium electrode and two kinds of Ni-In alloy electrodes (A-type and B-type) were prepared by electrodeposition method and their voltammetric behaviours were investigated in a 0.2 mol/L NaOH solution. The electrocatalytic activities of glucose on these electrode surfaces were also examined. The results of electrochemical experiments indicated that the Ni electrode and Ni-In alloy electrodes had catalysis effect on glucose oxidation in an alkaline solution. The A-type Ni-In alloy electrode, prepared in an electrolyte at a 5:1 Ni2+/In3+ mole ratio, had the best electrocatalytic activity. There was a liner relationship between glucose oxidation peak current and its concentration in the range of 1-10 mmol/L. The A-type Ni-In alloy electrode in alkaline solution was steady and it preferably resisted surface poisoning. This alloy electrode can be used as a high catalytic activity electrode of glucose sensor and glucose fuel cell.
摘要：
Although widely applied in many industries, anionic surfactants (AS) have been shown to contaminate the natural environment. Therefore, the detection of trace amounts of AS in environmental samples is of great interest. Here, we report a novel fluorescence quenching method for the determination of trace AS, specifically, sodium dodecyl sulfate (SDS), using 1-(5-naphthol-7-sulfonic acid) -3-(4-pheny-lazophenyl)-triazene (NASAPAPT). Under optimum conditions, the degree of fluorescence quenching is linearly proportional to the concentration of SDS from 2.08×10-8 to 8.67×10-7mol L-1 with a detection limit of 8.35×10-9mol L-1. The proposed method exhibits high sensitivity and selectivity, yet it avoids the use of toxic organic solvents and tedious solvent extraction procedures. It has been applied to the determination of trace SDS in both natural water and industrial samples with recoveries between 99.04 and 103.58%. Results indicated that the hydrogen bonds formed between NASAPAPT and SDS played an important role in the detection process and that the π→π* transition was crucial for fluorescence of the NASAPAPT complex.
摘要：
Six new 3d-4f heterometallic coordination polymers, {[Ln4Cu2(INAIP)8(H2O)15]·14H2O}n [Ln = La (1), Pr (2), Nd (3)] and {[LnCo0.5(INAIP)2(H2O)2]·2H2O}n [Ln = Tb (4), Dy (5), Yb (6), H2INAIP = 5-(isonicotinamido)isophthalic acid] have been synthesised and characterised by single crystal X-ray diffraction analysis. The results of structural analyses showed that 1–3 are isomorphous showing two-fold interpenetrated three-dimensional (3D) coordination framework, while 4–6 have the same non-interpenetrated 3D structure with 2D (4, 4) lanthanide-carboxylate layers. The results revealed that the different transition metal centres have great influence on the structures of the resulted complexes in this system. In addition, thermogravimetric and magnetic properties of 1–6, and photoluminescence of 4 were investigated.
作者：
Li Wei*;Li Yu-Ling;Li Chang-Hong;Tan Xiong-Wen
期刊：
Chinese Journal of Structural Chemistry,2011年30(9):1279-1282 ISSN：0254-5861
通讯作者：
Li Wei
作者机构：
[Li Yu-Ling; Tan Xiong-Wen; Li Wei] Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Hunan, Peoples R China.;[Li Chang-Hong] Hunan Inst Technol, Dept Mat & Chem Engn, Hengyang 421002, Peoples R China.
通讯机构：
[Li Wei] H;Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Hunan, Peoples R China.
摘要：
The nickel complex{Ni(2,2-bipy)(H_2O)_3[C_8H_(11)O_2(COO)]}(H_2O)3 with bicycle[2.2.1]-2-hepten-5,6-dicarboxylic acid[C7H8(COOH)2]and 2,2'-bipyridine(bipy)as ligands has been synthesized and characterized.It crystallizes in monoclinic,space group P1,with a= 0.74975(3),b=1.20309(4),c=1.30593(4)nm,α=109.861(2),β=98.519(2),γ=90.575(2)o,V= 1.09337(7)nm~3,Dc=1.552 g/cm~3,Z=2,F(000)=524,the final GOOF=1.064,R=0.0397 and wR=0.1171.The crystal structure shows that the nickel ion is coordinated with four oxygen atoms from one bicycle[2.2.1]-2-hepten-5,6-dicarboxylic acid molecule and three water molecules and two nitrogen atoms from the 2,2'-bipyridine molecule,forming a distorted octahedral coordination geometry.The result of TG analysis shows that the title complex is stable under 200.0℃.
摘要：
A one-dimensional chain chlorodibenzyltin 2-quininate has been synthesized and characterized by IR, NMR spectra and elemental analysis. The crystal structure has been determined by X-ray diffraction. The crystal belongs to the monoclinic system, space group I4（—） with a = 19.1171（10）, b = 19.1171（10）, c = 12.5158（6） , Z = 8, V = 4574.1（4） 3, Dc = 1.477 g·cm-3, μ（MoKα） = 1.252 mm-1, F（000） = 2032, R = 0.0259 and wR = 0.0723. In the complex, the tin atom is six-coordinated to adopt a distorted octahedral configuration with bridging carboxyl of quinoline-2-carboxylic acid. The result of fluorescence spectrum analysis shows that the title complex at room temperature exhibits an intense photoluminescence with maximum emission at 364.2 nm （λex = 303.0 nm）.
摘要：
The title complex,{[Eu(L)(HL)]·2H_2O}_n 1,where H_2 L=5-(isonicotinamido)isophthalic acid,was synthes-ized and its crystal structure was determined by X-ray diffraction analysis.The crystal is of monoclinic,space group P2_1 /c with a=1.344 02(18)nm,b=1.377 50(18)nm,c=1.623 07(15)nm,β=115.820(8)°,V=2.704 9(6)nm~3,Z=4,M r =757.45,D c =1.860 g·cm~(-3),μ=2.396 mm~(-1),F(000)=1 504,R int =0.051 4,R_1 =0.032 2,wR 2 =0.089 1.In the complex,the central Eu(Ⅲ)atom is eight-coordinated by eight carboxylate oxygen atoms,completing a distorted bicapped trigonal prismatic geometry.The molecules are connected to form a 2D bilayer structure bridged by 5-(isonicotinamido)isophthalic acid
摘要：
In the centrosymmetric polymeric title compound, {[CoGd 2(C 14H 8N 2O 5) 4(H 2O) 4]·4H 2O} n, the Gd III cation is coordinated by one water molecule and four pyridine-4-carboxamido-isophthalate (L) anions in a distorted square-anti-prismatic arrangement, while the Co II cation, located on an inversion center, is coordinated by two pyridyl-N atoms, two carboxylate-O atoms and two water molecules in a distorted octa-hedral geometry. The asymmetric unit contains two anionic L ligands: one bridges two Gd cations and one Co cation through two carboxyl groups and one pyridine-N atom; the other bridges two Gd cations and one Co cation through two carboxyl groups and the uncoordinated pyridine-N atom is hydrogen-bonded to the adjacent coordinated water molecule. Extensive O-H⋯O and N-H⋯O hydrogen bonds are present in the crystal structure.
作者机构：
Key Laboratory of Functional Organometallic Materials, Hengyang Normal University, Department of Chemistry and Materials Science, Hengyang 421008, Hunan, China
通讯机构：
Key Laboratory of Functional Organometallic Materials, Hengyang Normal University, Department of Chemistry and Materials Science, China
作者：
Li Chang-Hong*;Tan Xiong-Wen;Li Wei;Yang Ying-Qun
期刊：
Chinese Journal of Structural Chemistry,2011年30(2):289-292 ISSN：0254-5861
通讯作者：
Li Chang-Hong
作者机构：
[Li Chang-Hong] Hunan Inst Technol, Dept Mat & Chem Engn, Hengyang 421002, Peoples R China.;[Tan Xiong-Wen; Yang Ying-Qun; Li Wei] Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Peoples R China.
通讯机构：
[Li Chang-Hong] H;Hunan Inst Technol, Dept Mat & Chem Engn, Hengyang 421002, Peoples R China.
摘要：
One novel binuclear copper（Ⅱ） complex [Cu 2 （Hpt） 2 （CO 3） 2 （H 2 O） 2 ]·H 2 O with copper carbonate and 3-（pyridin-2-yl）-1,2,4-triazole （Hpt） was hydrothermally synthesized and characterized by IR and X-ray diffraction analysis.The complex crystallizes in triclinic,space group P2 1 /n with a=0.6862（1）,b=0.7805（1）,c=1.1983（2） nm,α=72.03（2）,β=107.72（3）,γ=75.28（2）o,V=0.5884 nm 3,D c=2.105 g/cm 3,Z=1,F（000）=357,GOOF=1.041,the final R=0.01859 and wR=0.04348.The whole molecule is composed of two cooper ions,two Hpt molecules,two carbonate and three water molecules,forming a binuclear structure.The crystal structure shows that the cooper ion is coordinated with three nitrogen atoms from two Hpt molecules,two oxygen atoms from one carbonic acid and one water molecule,forming a distorted square pyramidal geometry.The TG analysis result shows that the title complex is stable under 131.0 ℃.
摘要：
The title complex has been synthesized with 2,2.-biphenyl dicarboxylic acid and 1,10-phenanthroline (phen) in the solvent mixture of water and methanol. It crystallizes (C_(38)H_(28)CuN_4O_6, M _r = 700.1) in triclinic, space group P1 with a = 1.0868(2), b = 1.2175(2), c = 1.6206(3) nm, α = 110.161(2), β = 102.605(3), γ = 93.667(2)°, V = 1941.6(6) nm~3, Dc = 1.198 g/cm ~3, Z = 2, F(000) = 722, R = 0.0558 and wR = 0.1208. The crystal structure shows that the copper atom is coordinated with one oxygen atom from 2,2.-bphenyl dicarboxylic acid molecule and four nitrogen atoms from two 1,10-phenanthroline molecules, forming a distorted square-pyramidal coordination. The TG analysis shows that the title complex is stable under 160.0 °C.
