映

Both three-dimensional chiral compounds have intriguing chiral channels, which are built up of homochiral intertwined double helices. The circular dichroism spectra of 1 and 2 in water have shown they are stable in solution, which document they will be significantly useful in asymmetric catalysis and chiral medicine.

以Keggin结构多金属氧酸盐为建筑单元，通过手性的铜-脯氨酸配合物作为模板剂构筑了2个基于Keggin结构多金属氧酸盐的3D纯手性化合物，化合物1和2是一对对映体，代表了世界上第一例3D手性多酸化合物，具有由同手性螺旋缠绕形成的手性孔道，水溶液中的圆二色谱表征这个3D手性化合物可稳定存在，显示这个物种可以在不对称催化及手性药物方面有潜在的巨大的应用价值。

The Alliance franaise of Hong Kong, the Consulate of Belgium and the Consulate of Switzerland jointly present a cinema cycle on the theme of Love. Either romantic or tragic, humoristic or dramatic, the selection of 8 films invites you to experience and share emotions….in French!

香港法国文化协会、比利时领事馆及瑞士领事馆携手合办一个以爱为主题的迷你电影节，透过选映的八部法语电影与大家分享浪漫或悲伤、幽默或戏剧性的爱情故事。

This serene beauty is mirrored in the eyes of the Hunanese people and carried along by them in their minds and spirits.

这美景映在了湖南人的眼中，也扎根于他们的心灵和信念中。

A HPLC method for chiral separation of citalopram hydrobromide enantiomers and optical puritydetection of escitalopram oxalate was established.

利用Chiralpak AD-H手性柱建立了氢溴酸西酞普兰对映体HPLC手性拆分的方法，同时对草酸依地普仑进行了ee值检查。

Theoretical studies on various geometrical structures of Hypophosphorous acid were carried out using DFT theoretical methods,at the B3LYP/6—311++G** level.Intramolecular proton transfer isomerization has also been studied using the intrinsic reaction coordinate.

采用量子化学密度泛函B3LYP方法，在6—311++G**基组水平上全优化得到了硫代次磷酸的硫酮式和硫醇式两种构型异构体以及相应的对映异构体，同时对分子内质子转移异构化反应微观机理进行了理论分析。

Theoretical studies on various geometrical structures of Hypophosphorous acid were carried out using DFT theoretical methods, at the B3LYP/6-311 ++ G(superscript **) level. Intramolecular proton transfer isomerization has also been studied using the intrinsic reaction coordinate.

采用量子化学密度泛函B3LYP方法，在6-311++G基组水平上全优化得到了硫代次磷酸的硫酮式和硫醇式两种构型异构体以及相应的对映异构体，同时对分子内质子转移异构化反应微观机理进行了理论分析。

Keywords hypophosphorous acid;thiol isomer thione isomers;enantiomer;proton transfer;isomerization reaction

单硫代次膦酸；硫酮式异构体；硫醇式异构体；对映异构体；质子转移异构化

The voice just fell instantaneous, a large-scale outer space interspace tangled warfare started, a time entire interspace air zone, both sides starship intercourse shuttle, each kind of firepower fire has formed the light net which interwove, each kind of ammunition exploded the fire sparkling red entire rencountre region, looked by far, here already was one for the grand magnificent smoke and fire banquet which but the death held specially.

话音刚刚落下的瞬间，一场大规模的太空星际混战就开始，一时间整个星际空域，双方星际飞行器往来穿梭，各种火力射击形成了一个交织的光网，各种弹药爆炸的火光映红了整个交战区域，远远看去，这里已是一个为死亡而特意举行的盛大华丽的烟火宴会。

Xinquan HuTwo new chiral backbones R-- and S--2-amino-2"-hydroxy-4,4",6,6"-tetra methyl-1,1"-biphenyl were synthesized via nitration, diazotation/iodination, Ulhnann coupling, selective reduction, diazotation/hydrolysis, hydrogenation and resolution from 2,4-dimethyl-aniline in seven steps.

以2，4-二甲基苯胺为起始原料，经过硝化反应、重氮化碘代反应、Ullmann缩合反应、选择性双硝基单还原反应、重氮化水解反应、催化氢化反应和拆分，首次合成了--2-氨基-2'-羟基-4，4'，6，6'-四甲基-1，1'-联苯和--2-氨基-2'-羟基-4，4'，6，6'-四甲基-1，1'-联苯两个对映体。

Chiral centers of C5 and C8 are directly constructed in the key step of the diastereoselective propargylation from D--tartrate. The methylation and subsequent methoxycarbonylation result in desymmetrization of the terminal dialkynes. The α,β-unsaturated δ-lactone is synthesized after partial hydrogenation and lactonization.

由非天然酒石酸出发，利用双向非对映选择性的炔丙基化反应，在一步反应中同时构建C5和C8手性中心；然后通过末端炔基的甲基化、甲酯基化，延长碳链并对分子去对称化；内酯化得到关键中间体α，β-不饱和六元内酯，再经多步反应转化得到8-epi--Boronolide。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。