新法制备铁氰化钴修饰玻碳电极及多巴胺的电催化氧化

新法制备铁氰化钴修饰玻碳电极及多巴胺的电催化氧化     

10-烃基吖啶酮的非线性光学活性研究

随着激光技术应用的发展,非线性光学材料的研究不断深人［'j,目前倍频效应和短的截止波长的倍频材料是二阶非线性光学有机材料研究的热点之一L'．现有的非线性光学有机材料,如偶氮苯、共轭烯烃与SChiff碱等类化合物,因分子具有较大的共轭长度使其吸收多处于可见光区,不适合于半导体激光等向蓝紫激光倍频"·"．0'（暖酮含有大。共轭结构,分子两端同时连有吸电子基团。X一0）和推电子基团（＞N-R）而发生分子内的电荷转移,使分子具有非线性光学活性"－·这类化合物结构简单,并有很好的光稳定性,且该类化合物最大紫外吸收在385～40…     

L-组氨酸稳定的铜纳米团簇的合成及其在三硝基苯酚检测中的应用

三硝基苯酚(PA)是废水中酚类有机化合物的重要成分,鉴于其对人体及环境的危害,实现PA简便、准确的检测意义重大.本文以L-组氨酸为保护剂,抗坏血酸为还原剂,通过一步法在室温下合成了铜纳米团簇(Cu NCs).透射电子显微镜(TEM)、X射线光电子能谱(XPS)、紫外可见光谱(UV-vis)和傅里叶红外(FT-IR)等手...     

{[Gd(DMF)_3(DMSO)(H_2O)_3](μ-CN)[Fe(CN)_5]}·2H_2O的合成,结构表征和磁性(英文)

0IntroductionThefirstmolecule鄄basedmagnetswerereportedin1986[1].Duringthelasttwodecades,moreandmoreattentionhasbeenpaidtothesynthesisofmolecule鄄basedmagnets,especiallytoPrussianBlueanalogu鄄es[2].TheoldPrussianBlueanalogueshavebeenbroughtuptodateduetoth…     

Synthesis and Crystal Structure of an Ion-Pair Compound:[HL]2[Ni(CN)4]·4H2O(L=4-(2-Hydroxyphenyl)-1,5,9-triazacyclododecan-2-one)

An ion-pair compound,[HL]2[Ni(CN)4]·4H2O 1 has been obtained as an unexpected product when we attempt to prepare a heterometallic cyano-bridged complex by the reaction of GdCl3·nH2O,K2Ni(CN)4 and L (L=4-(2-hydroxyphenyl)-1,5,9-triazacyclododecan-2-one) in aqueous solution,and characterized by single-crystal X-ray diffraction.It crystallizes in monoclinic,space group P21/n with a=12.380(1),b=9.9637(8),c=17.087(1)A,β=105.947(2)°,V=2026.6(3) A3,Rint=0.0509,Z=2,Dc=1.297g/cm3,C34H56O8N10Ni,Mr=791.60,F(000)=844,μ(MoKα)=0.538 mm-1,S=1.030,the final R=0.0644 and wR=0.1299 for 2023 observed reflections with I≥2σ(I).The title compound 1 contains one anion of [Ni(CN)4]2-,two cations of [HL]+and four packing water molecules,which are held together by the N-H…O and O-H…O hydrogen bonds to form a three-dimensional framework.     

Synthesis of Eu(III) and Tb(III) Complexes with Two New Amide Type Podands and Their Luminescence Properties

ＩｎｔｒｏｄｕｃｔｉｏｎＬａｎｔｈａｎｉｄｅｃｏｍｐｌｅｘｅｓｈａｖｅａｔｔｒａｃｔｅｄｍｕｃｈａｔｔｅｎｔｉｏｎｂｅｃａｕｓｅｏｆｔｈｅｉｒｉｍｐｏｒｔａｎｔａｐｐｌｉｃａｔｉｏｎｓ .1ＩｎｐａｒｔｉｃｕｌａｒＥｕ(ＩＩＩ)ａｎｄＴｂ(ＩＩＩ)ｃａｎｂｅｃｈａｒａｃｔｅｒｉｚｅｄｂｙｌｏｎｇ ｌｉｖｅｄ(ｍｓｔｉｍｅｓｃａｌｅ)ａｎｄｓｔｒｏｎｇｌｕｍｉｎｅｓｃｅｎｔｅｌｅｃｔｒｏｎｉｃａｌｌｙｅｘ ｃｉｔｅｄｓｔａｔｅｓ ,ｗｈｉｃｈｍａｋｅｓｔｈｅｍｉｍｐｏｒｔａｎｔｉｎａｎａｌｙｔｉｃａｌｃｈｅｍ…     

ZnO超微粒子光催化氧化降解n-C7H16的研究

利用ZnO光催化氧化技术对气相n-C7H16进行了降解研究，考察了氧气、水燕气体积分数等因素对n-C7H16光催化氧化的影响，利用气相色谱－质谱联用仪和气相色谱仪对气相光催化反应过程中的气体组成进行了定性分析，并对主要中间产物丙醛进行了定量分析，结果发现，ZnO超微粒子光催化氧化n-C7H16的降解率较高，n-C7H16绝大部分被完全氧化成CO2，探讨了n-C7H16光催化氧化反尖的动力学行为及机理。     

壳聚糖-盐酸溶液中温度敏感的相分离行为

研究了壳聚糖 盐酸溶液温度敏感的相分离行为.通过对壳聚糖-盐酸溶液浊度变化的考察以确定相分离温度.测定不同盐酸浓度、壳聚糖浓度以及不同脱乙酰度的条件下的相分离温度，并用DLVO理论(Deijaguin-Landau and Verwey-Overbeck Theory)进行了解释. FTIR、X-ray以及SEM分别描绘了壳聚糖经相分离过程后官能团、结晶状态、颗粒形态的特点.     

硫化物/Ru(II)络合物复合敏化TiO2纳米多孔膜

用光电化学方法研究了ＣｄＳ,ＰｄＳ和Ｒ１１Ｌ２（ＮＣＳ）２,（Ｌ＝２,２′－ｂｉｐｙｄｉｎｅ－４,４′－ｄｉｃａｒｂｏｘｙｌｉｃａｃｉｄ）复合敏化ＴｉＯ２纳米晶电极的光电化学行为,结果表明,采用复合敏化比用Ｒ１１（ＩＩ）络合物单独敏化ＴｉＯ２纳米晶电极效果好,大大提高了光电转换效率,主要原因是采用复合敏化,可防止ＴｉＯ２导带上由光注入产生的电子的反向转移,避免了电子的损失。     

Synthesis and Structural Characterization of a Cyano-bridged Dinuclear Neodymium(III)-iron(III) Complex [Nd(DMSO)5(H2O)2](μ-CN)[Fe(CN)5]

A new neodymiumIII-ironIII complex [Nd(DMSO)5(H2O)2](μ-CN)[Fe(CN)5] (DMSO = dimethyl sulfoxide) has been synthesized by the grinding reaction method. The crystal belongs to monoclinic, space group P21/m with a = 8.859(4), b = 13.684(5), c = 12.290(4) A, β = 91.85(2)o, C16H34FeN6NdO7S5, Mr = 782.88, V = 1489(1)A3, Z = 2, Dc = 1.746 g/cm3, S = 0.906, μ(MoKα) = 2.606 mm-1, F(000) = 788, R = 0.0646 and wR = 0.1654. The slightly distorted square-antiprism eightfold-coordinated Nd(III) and approximately oriented octahedrally sixfold- coordinated Fe(III) are linked by a cyano-bridge group to construct a dinuclear compound. The [Nd(DMSO)5(H2O)2](μ-CN)[Fe(CN)5] species are held together via hydrogen bonds to form a three-dimensional framework.