Result showed that tetrasubstituted calix [4] arenes in lower rim were stronger complex abilities than bisubstituted calix [4] arene with transition metal, heavy metal and rare earth ions. But when introducing the aminephenolicalcohols in the 1, 3-bisubstituted calix [4] arenes, the complex abilities were improved.

結(jié)果表明：在Lower rim上四取代的杯[4]芳烴配體比1全国精品第一区黄片，3-二取代的杯[4]芳烴配體對(duì)過(guò)渡金屬離子手机黄网欧美高清，重金屬離子及稀土離子有更好的配位能力，但當(dāng)1久久免费视频免费看，3-二取代的取代基上引入醇胺鏈型配體時(shí)国产热情网站，對(duì)金屬離子也有很好的配位能力。

A novel method has been developed for the fluorimetric determination of glucose using tetrasubstituted nitro aluminum phthalocyanine as the fluorescence probe.

建立以四硝基鋁酞菁為熒光探針剛定葡萄糖的熒光分析新方法av免费在线观看网站大全。

The bisubistituted straight-chain and tetrasubstituted ester molecules have symmetrical structures.

二元直鏈和四元硝酸酯具有對(duì)稱(chēng)的分子構(gòu)型久久国产精品免费一区二区三。

In addition, we have discovered a new reaction, it is that Dy/SiCl_4 can promote imines to give imidazolidines and tetrasubstituted hydrazines.

Dy／SiCl_4體系具有另外一個(gè)重要特性，就是我們發(fā)現(xiàn)它能夠促進(jìn)亞胺一步生成五取代的咪唑烷和四取代的肼看美女被操久久精品，這是用其它自由基或直接用稀土金屬和亞胺反應(yīng)無(wú)法得到的色色中文网。

A series of tri- and tetrasubstituted benzene derivatives 1-8 with extended rigid arms carrying mono- or bidentate binding sites at the termini were synthesized as connectors for a molecular construction kit.

一系列的三和四取代苯衍生物 1月8日延長(zhǎng)剛性武器進(jìn)行單或雙齒結(jié)合位點(diǎn)在總站合成作為連接器的分子構(gòu)建模塊。