Syntheses and Crystal Structures of Molybdenum-Sulfur Clusters Mo_3S_4 (dtp)_3(o-CH_3OC_6H_4COO)(Py) and Mo_3S_4 (dtp)_3(p-HOC_6H_4COO)(DMF)·EtOH

1 INTRODUCTION Recent years have seen a drastic increase of compounds containing the Mo3S4 core. A major synthetic route to these compounds is by the reaction of the aqua ion [Mo3S4(H2O)9]4+ with different kinds of ligands replacing some or all of the water molecules. In this way, Mo3S4(dtp)4(H2O), which was synthesized by the spontaneous- assembly method in 1986[1] and its structural characterization and chemical reactivity have been well recognized [2], can be rationally synthesize…     

借助聚丙烯酸制备铜粒子修饰电极并用于双氧水的电催化性能研究

利用羧基对金属离子的络合作用在电极表面原位制备金属粒子用于电催化过氧化氢(H2O2). 首先在电极表面电沉积聚丙烯酸, 然后化学吸附铜离子, 再用水合肼将其还原成零价铜. 铜粒子簇均匀分散在聚丙烯酸网络中, 其尺寸可通过吸附铜离子的数量和吸附-还原次数来控制. 由于铜微粒的电催化作用, 该修饰电极对H2O2表现出了良好的电流响应. 运用该方法可以在电极表面制备多种金属微粒, 并且聚丙烯酸的自由羧基可以与氨基反应, 从而可共价固定带氨基的酶和抗体, 有望构建多种新型的化学和生物传感器.     

水合法合成樟脑副产油中异莰烷的分离和鉴定

水合法合成樟脑副产油中异莰烷的分离和鉴定     

Identification and Structures of Two Main Unknown Components in the By-product from the Hydration Synthesis of Camphor

Two main unknown components in the by-product of camphor hydration synthesis were separated and identified by fine fractional distillation and spectroscopic analyses. The components with different ratios of unknown components A and B were collected by the further distillation. The combined spectral results of GC, MS,GC-MS and 13C NMR of the collected samples revealed that A is exo-2, 2, 3-trimethylbicyclo[2, 2, 1 ]heptane, and B is endo-2, 2, 3-trimethylbicyclo[2, 2, 1 ]heptane.     

二元羧酸取代的三核钼原子簇化合物的红外光谱与结构

本文考察了新合成的两个二元羧酸取代的三核钼衍生物Ｍｏ３Ｓ４（ＤＴＰ）３（ｐｈｔｈａｌａｔｅ）（Ｐｙ）（Ａ）（ＤＴＰ＝ｄｉｅｔｈｙｌ ｄｉｔｈｉｏｐｈｏｓｐｈａｔｅ,「Ｓ２Ｐ（ＯＥｔ）２」＾－）和Ｍｏ３Ｓ４（ＤＴＰ）３（ｍａｌｏｎａｔｅ）（Ｐｙ）（Ｂ）的红外吸收光谱,对Ｍｏ－Ｓ键及配体的主要吸收峰进行了归属和讨论,并与化合物Ｍｏ３Ｓ４（ＤＴＰ）４（Ｐｙ）（Ｃ）的谱图进行了比较。结果表明,通过对这类复