Electrochemical Behavior of Methanol Influenced by Polyaniline Incorporated with Ferrocenesulfonic-carboxylic Acid

After the synthesis of polyaniline in the presence of ferrocenesulfoniccarboxylic acid, its influence on the electrochemical reaction of methanol was studied. The result indicates that the ferrocenyl in ferrocenesulfoniccarbexylic acid plays an important role in the electrocatalytic oxidation of methanol. CH3OH is adsorbed on PANI-Fc before its electrocatalytic oxidation. When the concentration of methanol is 2 mol/L, it begins to be oxidized. The effect of scan rate on the electrochemical reaction of methanol was also studied and 5 mV/s was favourable. It is another method to insert a metal catalyst in polyaniline without its electrodeposition.     

Synthesis, Spectroscopic Properties and Structural Characterization of Tri（o-chlorobenzyl）tin Ester of 4-Pyridinecarboxylic Acid

The tri(2-chlorobenzyl)tin(IV) complex with 4-pyridinylcarboxylate ligand tri(o-chlorobenzyl)tin ester of 4-pyridinecarboxylic acid has been synthesized by the reaction of tri(2-chlorobenzyl)tin(Ⅳ) chloride with 4-pyridinyl carboxylic acid and characterized by elemental analysis, IR and ^1HNMR, and its crystal structure was determined by X-ray single-crystal diffraction.     

季铵盐参与的直接化学选择性O-和N-烷基化反应

将羧酸或胺类化合物与季铵盐进行简单的混合加热,便可直接得到O-或N-烷基化产物。季铵盐中烷基的转移具有较好的选择性,其优先顺序为：苄基〉伯烷基〉仲烷基。     

4-芳氧乙(丙)酰氨基苯磺酰胺的合成与除草活性

芳氧羧酸;4-芳氧乙(丙)酰氨基苯磺酰胺的合成与除草活性     

稀土氧化膦取代杯芳烃配合物的合成与结构

合成了一种新的氧化膦取代杯芳烃衍生物的稀土离子(La³⁺,Eu³⁺)硝酸盐配合物.通过元素分析和红外光谱对配合物进行了表征.在无水甲醇中培养出了配合物的单晶,用X射线单晶衍射法测定了其晶体结构.硝酸镧配合物晶体[L·La(OH₂)(NO₃)₂]NO₃{L为四(亚甲基二苯基氧化膦)杯[4]芳烃}属四方晶系,空间群P4₃2₁2,晶胞参数a=b=1.8977(4)nm,c=3.1087(11)nm;Z=4;V=11.196(5)nm³;D_c=1.097g/cm³,F(000)=3712,μ=0.491mm^-1,R₁=0.1181,wR₂=0.1930.硝酸铕配合物晶体[L·Eu(OH₂)(NO₃)₂]NO₃·CH₃OH属单斜晶系,空间群C2/c,晶胞参数a=2.88172(11)nm,b=5.4015(2)nm,c=2.01189(7)nm;β=133.4067(9)°,Z=8;V=22.7511(14)nm³,D_c=1.106g/cm³,F(000)=7464,R₁=0.0671,wR₂=0.1794.2个配合物的晶体结构相类似,配合物中配体的4个磷氧键上的氧原子、2个双齿配位的硝酸根中的4个氧原子还有1个水分子中的氧原子分别参与了配位.中心离子配位数为9,配位多面体为单帽四方反棱柱体.另外在铕配合物的杯芳烃中还包合了1个甲醇分子.     

分子树拓扑指数与羧酸化合物pKa值的定量构效关系

酸性强度;分子树拓扑指数与羧酸化合物pKa值的定量构效关系     

镍镧复合氧化物的制备及光催化性能

镍镧复合氧化物的制备及光催化性能;活性染料     

Electroluminescence from Exciplex on the Interface Between TPD and La（PMIP）3（Bipy）

The bilayer organic light-emitting diode(OLED) with a blue fluorescent lanthanum complex, tris(1-phenyl-3-methyl-4-isobutyryl-5-pyrazolone)-(2,2′-dipyridyl) lanthanum [La(PMIP)3(Bipy)], as a light emitting material and N,N′-diphenyl-N,N′-bis(3-methylphenyl)-1,1′-biphenyl-4,4′-diamine(TPD) as a hole transporting material emits bright green light instead of blue light. The data of the absorption, the photoluminescence(PL) and the photoluminescence excitation(PLE) spectra of TPD, La(PMIP)3(Bipy) and the mixture of TPD and La(PMIP)3(Bipy)(molar ratio 1∶1) prove that the electroluminescent emission originates from the exciplex on the interface between TPD and La(PMIP)3(Bipy). By improving device configuration with tris(8-hydroxyquinoline) aluminum(ALQ) as an electron transporting material, a maximum luminance of 800 cd/m2 was obtained.     

用大孔凝胶阴离子交换剂从含亚氨二醛酸试液中分离镧、镨化合物

在采用阴离子交换剂从含氨基多羧酸试液中分离稀土的研究中 ,发现在醋酸和亚氨二醋酸试液中 ,稀土元素与亚氨二醋酸的亲合力顺序是 :Dy3 >Ho3 >Gd3 >Eu3 >Er3 >Y3 >Sm3 >Tm3 >Nd3 >Pr3 >>La3 。根据镧亲合力最小的特点 ,有可能将镧与其他稀土分离 (例如Pr)。在本研究中 ,采用了强碱性凝胶阴离子交换剂Dowex 1× 8(1型 )和Dowex 2× 8(2型 )以及强碱性大孔阴离子交换剂DowexMSA 1。研究表明 ,大孔离子交换剂其海棉状基质 ,孔径大于其分子直径 ,故大离子的交换速度快。另外 ,大孔凝胶阴离子交换剂可在亚氨二醋酸试液中将La ,Pr分离而提纯出镧化合物。     

含茂基苯甲异羟肟酸镧系配合物的合成及表征

以三茂基稀土化合物 (Cp3Ln ,Cp =环戊二烯基 ,Ln =Yb ,Tm ,Er ,Ho ,Dy ,Gd ,Pr)和苯甲异羟肟酸(以HL表示 ) ,在四氢呋喃中反应 ,合成了 7个未见文献报道的含茂基苯甲异羟肟酸镧系金属有机配合物Cp2 LnL ,(L = CNHOO ) ,并进行了元素分析、红外光谱及质谱测定 ,推测了这类化合物的可能结构。