螯合

Both crystallographically unique Zn atoms exit as an octahedral geometry. The four equatorial positions of Zn1 atom are occupied by the carboxylate-oxygen atoms of the two tartrates, and the two oxygens of the left four carboxylate-oxygen atoms coordinate to two different Zn2 atoms, respectively, forming infinite coordination polymer chains. The left two of the trans equatorial positions of Zn2 atom are completed with two oxygen atoms of two water molecules. The axial positions of both Zn atoms are occupied by the nitrogen atoms from different 4,4'-bipyridine molecules to give a 2D rectangular-grid layers with a cavity dimension of 0.51165(3)nm×1.13896(5) nm. A three dimensional network is formed by the crystallization water chains joined by the carboxylate-oxygen atoms through hydrogen-bonding interactions.

两个晶体学独立的Zn原子均为八面体构型，其中Zn1原子赤道配位点被2个酒石酸根中的4个羧酸根氧螯合配位， 2个酒石酸根中剩下的4个羧酸根氧中的2个分别与2个Zn2原子连接形成无限一维链， Zn2原子的另外2个反式赤道配位点被2个水分子氧占据，同时这两种Zn原子的轴向配位点均被4，4'-联吡啶的氮原子占据，形成具有矩形格子[0.51165(3) nm×1.13896(5) nm]的二维层状结构，游离的2个水分子通过氢键作用形成二聚体，并与酒石酸根中未与Zn配位的羧酸氧连接，把二维层状结构连接成三维网状的超分子结构。

Details on the light-emitting characteristics of the devices were explained by the curves of curr...

对这种新型金属螯合物OLEDs的发光和电学性能进行了深入的研究。

The chelating fibers with diethanolamine group or diethylamine group present great adsorption capacity , high adsorption rate as well as good selectivity for Au3+ ion.

结果表明，含二乙胺基和二乙醇胺基的螯合纤维对金离子的吸附量较大，而且吸附快、对金的选择性好，还能将所吸附的金离子还原成单质金

For purification of BS-63 protein, Ni-NTA resin was used to absorb and elute it from denatured inclusion bodies, based on the principle of chelate.

利用〓和6×Histag螯合的原理，使用Ni-NTA树脂对变性溶解的包含体进行吸附、洗脱。

The chelating ability of its enolate anion (TTF-ph-tfac) has been investigated with [MIICl_2·xH_2O] (M = Zn and Co) leading to complexes Zn(TTF-ph-tfac)_2(CH_3OH)_2 (7) and Co(TTF-ph-tfac)_2(CH_3OH)_2 (8), where the metal center is coordinated by two TTF-ph-tfac ligands. This redox active ligand shows promising features for the elaboration of hybrid organic-inorganic building blocks.

具有反铁磁行为的化合物5在110-120K观察到了相转变的发生，是目前已报道的该类化合物中最高的相变温度。3、TTF-ph-tfac烯醇阴离子具有很强的配位能力，与金属氯化物螯合配位分别生成了配合物Zn(TTF-ph-tfac)_2(CH_3OH)_2 (7)和Co(TTF-ph-tfac)_2(CH_3OH)_2 (8)，每个中心金属都桥连两个TTF-ph-tfac配体。

An experiment was conducted to evaluate excretive tendency of zinc in feces and urine with 8 goats groups fed with diet Ⅰ(basal diet+ 65 Zn Met) and diet Ⅱ(basal diet+ 65 ZnSO 4) respectively.

8只体重为9kg左右的健康浏阳黑公山羊，分成两组，单独关在代谢笼内，分别喂以含65Zn蛋氨酸（65ZnMet）和65Zn硫酸锌（65ZnSO4）的饲料，比较研究锌蛋氨酸螯合物的中锌在山羊粪、尿中的排泄动态。

A novel supramolecular complex, [Cu2]CH3OHH2O (fum=fumarate dianion, dpphen=4, 7-diphenyl-1, 10-phenanthroline), has been prepared from the reaction of bidentate ligand, fumarate with CuCl2, and were characterized by element analysis, IR, thermal analysis and X-ray diffraction technique.

利用螯合配体4，7-二苯基－1，10-邻菲罗啉与反丁烯二酸钠及铜盐反应合成了一种新型超分子配合物[Cu2]CH3OHH2O（fum=反丁烯二酸根，dpphen=4，7-二苯基－1，10-邻菲罗啉）。通过元素分析、红外光谱、热分析和X射线单晶衍射等技术对其进行了表征。

For anti-oxidation properties, methanolic extracts from fruit bodies and mycelia showed excellent scavenging ability toward DPPH (1,1-diphenyl-2-picryl hydrazyl)(96% at 15mg/mL) and good potential in reducing ability at the concentration of 2.5 mg/mL and chelating effect on ferrous ion (about 82% and 77% for extracts from mycelia and fruit bodies, respectively) at the concentraction of 2.5 mg/mL.

在抗氧化性质方面，结果显示子实体和菌丝体的甲醇萃取物在浓度为15mg/mL时，对DPPH（1，1-diphenyl-2-picryl hydrazyl）自由基清除率高达96﹪和89%，在浓度为2.5mg/mL时就具有好的还原能力，菌丝体和子实体甲醇萃取物在浓度於2.5 mg/mL时，对铁离子螯合能力分别达82﹪和77﹪。

The mechanism of removing Zn(superscript 2+) has formed the chelating agent of hydroxamic acid group and Zn(superscript 2+), and the concentration of its maceration extract by water is 1/51 of the neutralization method's, so it is provided with better stability and environment safety.

捕集剂去除Zn(上标 2+)的反应机理为羟肟酸基团与Zn(上标 2+)形成了稳定的螯合物。摘集剂与Zn(上标 2+)反应形成的沉降物的浸出量仅为中和法沉淀的1/51，具有较高的稳定性和环境安全性。

Therefore can pass to use the cupric sulfate sulfuric acid potassium for the catalyst take sulfuric acid as to carry the body to digest it, make the amino acids chelate match the conversion for dissolve sex easily of ammonium sulfate and white vitriol, then absorb a fixed amount to try the kind to join 40% sodium hydroside combine under the steam heat function make ammonia the spirit swims to leave out, through cool off to respond the born boric acid with boric acid, be got the total nitrogen content by the standard aqua titration of hydrochloric acid immediately after;But the white vitriol can immediately join the hydrochloric acid hydroxylate , fluoride to turn the in order to cover up, carry on the titration but get the content of its zinc with the EDTA mark liquid..

因此可以通过用硫酸铜硫酸钾为催化剂以硫酸为载体将其消化，使氨基酸螯合锌转化为易溶性的硫酸铵和硫酸锌，然后吸取一定量的试样加入40 %的氢氧化钠并在水蒸气高温作用下使氨气游离出来，经冷却与硼酸反应生成硼酸铵，接着由盐酸标准溶液滴定得到总氮含量；而硫酸锌即可加入盐酸羟铵、氟化氢铵为掩蔽剂，用EDTA标液进行滴定而得到其锌的含量。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。