稀土储氢合金在有机氢化物中的吸氢行为和吸氢热力学性能

研究了富镧混合稀土－镍储氢合金（MlNi5)与有机化合物（C6H6）组成的浆液体系的吸氢行为和吸氢热力学性能。测定了不同温度（10，20，30，40℃）下两个不同系统的吸氢压力－成分等温（PCT）曲线，并分别计算出气固系统和气固液系统吸氢反应的热力学函数值ΔH,ΔS。     

Interlayer Energy Transfer from Naphthalene to Anthracene Chromophores Organized in Langmuir—Blodgett Films

Interlayer energy transfer between 2,3-naphthol-10-hexadecylaza-15-crown-5(NC16) and N-[1-(9-methoxyanthryl)] decylaza-15-crown-5(A10C) within multilayer Langmuir-Blodgett films has been studied by steady-state fluorescence spectra. The donor and acceptor could be separated precisely by inserting stearic acid (SA) spacers. The efficiency of the energy transfer increases with the decrease in the donor-acceptor distance by a quadratic manner, suggesting the donor excitations are delocalized in the layer.     

Preparation of Europium Induced Conformation—specific anti—calmodulin Monoclonal Antibody

Monoclonal antibody technique was employed to detect the conformational difference of CaM induced by metal ions. A trivalent europium ion induced conformation-specific anti-calmodulin monoclonal antibody was successfully prepared with europium-saturated calmodulin as antigen.     

A Minor New Flavone from Scutellaria baicalensis Georgi

A new flavone,6,2′-dihydroxy-5,7,8,6′-tetramethoxyflavone,was isolated from the roots of Scutellaria baicalensis. Its structure was established on the basis of spectral evidences.     

Two New Steroidal Glycosides from Fermented Leaves of Agave americana

Two new spirostanol glycosides named agamenoside A and B, ere isolated from the fermented leaves of Agave americana. Their structures were elucidated as (23S,25R)-5α-spirostan-3β,6α，23－triol 3-O-α-L-rhamnopyranosyl-(1→3)-β-D-glucopyranosyl-(1→2)-[β-D-xylopyranosyl-(1→3)]-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside(1) and (25R)-5α-spiro-stan-3β,6α-diol 3-O-β-D-glucopyranosyl-(1→2)-[β-D-xylopyranosyl-(1→3)]-β-D-glucopyra-nosyl-(1→4)-β-D-galactopyranoside(2) by a combination of chemical and spectral methods.     

A New Activation Method for Electroless Metal Plating：Palladium Laden via Bonding with Self—Assembly Monolayers

A new activation method has been developed for electroless copper plating on silicon wafer based on palladium chemisorption on SAMs of APTS without SnCl2 sensitization and roughening condition.A closely packed electroless copper film with strong adhesion is successfully formed by AFM observation.XPS study indicates that palladium chemisorption occurred via palladium chloride bonding to the pendant amino group of the SAMs.     

Synthesis of Cyanobenzaldehydes （m—,o—,p—）by Molecular oxygen Oxidation Methods

Cyanobenzaldehydes (m-,o-,p-) were synthesized by oxidation of corresponding tolunitriles with molecular oxygen,catalyzed by cobalt acetate and sodium bromide.     

The Inorganic—free Organic Conductor α′—（ET）2C6H4（SO3）2：Its Synthesis,Structure,and Conductivity

A new ET based cation radical salt,α′-(ET)2C6H4(SO3)2(ET=bis(ethylenedithio) tetrathiafulvalene) has been synthesized by oxidative electro-crystallization and the crystal structure determined to be in monoclinic system, P2/n space group. Its resistivity-temperature curve shows a semi-conductive behavior with a discontinuation at about 150K.     

镓在氨基吡啶树脂上的吸附行为及机理

前文已报道了氨基吡啶树脂对AuCl_4~-、PtCl_6~(2-)的吸附性。本文报道4-氨基吡啶树脂对镓的吸附行为与机理。在6mol/L HCl条件下,对镓的氯络阴离子(GaCl_4~-)有很好的吸附性。并能定量洗脱。测得静态吸附容量为351.15mg/g树脂,用化学法及红外光谱等方法,测得4-氨基吡啶树脂吸附镓(Ⅲ)的基本参数。