金属

The B and Q bands, the characteristic bands of the two metalloporphyrins, undergo bathochromic shift in some of the Lewis basic solvents. The spectral changes are thought to be due to the axial coordination of these solvents with vanadium in VOTPP and nickel in NiTPP. After axia...

结果表明，金属卟啉可以和一些Lewis碱性溶剂发生轴向配位作用，其特征紫外可见吸收峰发生红移；轴向配位作用与卟啉中心金属离子的外层d轨道电子数、碱性溶剂的供电子能力及其空间构造有关，VOTPP比NiTPP更容易和Lewis碱性溶剂发生轴向配位作用；碱性强、空间阻碍小的Lewis碱性溶剂易于与金属卟啉发生轴向配位作用。

Some new results are obtained from the studies: 1 a novel thermokinetic research method, the characteristic reduced parameter method, has been proposed, and the kinetics of oxidation of benzoquinone by hydrogen peroxide has also been investigated with this method; 2 the kinetic mathematical models that the metallomicelles made from the mono-nuclear or dinuclear complexes and surfactants catalyze the phenolic derivant oxidation have been established respectively; 3 the feasibility and mechanism that the metallomicelle, a mimetic model of peroxidase, catalyzes the phenolic derivant oxidation has been discussed.

研究得到如下新的结果：(1)提出了一种新的热动力学研究法——特征对比参量法，用该法研究了过氧化氢氧化苯醌反应动力学；(2)分别建立了由单核和双核金属配合物与表面活性剂形成的金属胶束催化酚类氧化反应的动力学数学模型；(3)探讨了金属胶束模拟过氧化物酶催化酚类氧化反应的可行性及其机理。

The studies are significant to propose the synthetic methodology of benzothiazole derivatives,broaden the application of the metal complexes of benzothiazoles.It is practical value of the research in preparation of phenylacetic acid from metal-catalyized carbonylation.The thesis consists of four chapters.

本论文研究了苯并噻唑衍生物及其钴、铑金属配合物的合成，并研究了两类金属配合物的羰基化催化性能，提供了合成苯并噻唑衍生物的可行路线，拓宽了苯并噻唑金属配合物的应用范围，催化羰基化合成苯乙酸的研究具有重要的实用价值。

In the procedures of syntheses, we chose 2,2"-bipyridine (2,2"-bipy), 4,4"-bipyridine (4,4"-bipy), 1,10-phenanthroline (1,10-phen) and 8—hydroxyquinoline as neutral ligands, and lead, copper, zinc, cadmium and manganese as metal ions in our research.

使用的中性配体为2，2′-联吡啶(2，2′-bipy)、4，4′-联吡啶(4，4′-bipy)、1，10-邻菲罗啉(1，10-phen)和8—羟基喹啉，研究的金属离子为主族金属Pb以及过渡金属Cu、Zn、Cd和Mn。

In this paper, two novel Organic- Inorganic Hybrid Compounds Containing POMs were achieved by selecting POMs with unique structure and properties and organic ligands with bipyridyl groups as building blocks and transition mental cation as templating through hydrothermal reaction.

本课题选择结构和性能独特的多金属氧酸根和多齿有机配体作为构件，以金属离子作为模板合成出新型多金属氧酸盐无机－有机杂化化合物。

By means of UV-vis spectrophotometer, the complex abilities of calix [4] arene ligands with metal ions were researched, and the effect of solvent systems was discussed.

使用紫外-可见分光光度法研究了杯[4]芳烃配体与金属离子的络合性质，并考虑了溶剂对配体与金属离子配位的影响，评价了杯[4]芳烃的不同取代基对过渡金属离子及稀土离子的配位作用。

The preparation method is characterized in that:(1) at minus 10 DEG C to 10 DEG C, a chloroauric acid solution with a certain concentration is added into a nano-Pt/C catalyst by ultrasonic or stirring mixture and the atomic ratio of Pt to Au is controlled between 18:1 and 5:1;(2) a small amount of monohydric alcohol or dihydric alcohol or trihydric alcohol of C1-C3 is added and is stirred at minus 10 DEG C to 10 DEG C for 10 min to 5h, so as to prepare the carbon-loading Pt-Au bimetallic nano electro-catalyst;(3) if necessary, the catalyst obtained by the step (2) is treated for 0.5 to 4h at high temperature ranging from 100 DEG C to 700 DEG C in the inert or reducing atmosphere, so as to adjust and control the grain size of the Pt-Au bimetallic nano electro-catalyst.

本发明涉及了一种高稳定性碳载Pt-Au双金属纳米电催化剂的制备方法，其特征在于：(1)在-10～10℃中，将一定浓度氯金酸溶液加入到纳米Pt/C催化剂中经超声或搅拌混合，控制Pt∶Au的原子比为18∶1-5∶1；(2)添加少量C 1 -C 3 的一元、二元或三元醇类，在-10～10℃下搅拌10min-5h，制备了碳载铂金双金属纳米电催化剂；(3)视需要，可将步骤(2)得到的催化剂在惰性气氛或还原气氛中经100～700℃高温处理0.5-4h，可调控Pt-Au/C双金属纳米催化剂的粒径。

Precious metals and their alloys and goods in precious metals or coated therewith, not included in other classes; jewelry, precious stones; horological and chronometric instruments.

不属别类的贵重金属及其合金，以及不属别类的贵重金属制品或镀有贵重金属的物品；珠宝，宝石；钟表和计时仪器。

Class 14 Precious metals and their alloys and goods in precious metals or coated therewith, not included in other classes; jewellery, precious stones; horological and chronometric instruments.

商标注册类别1 4 不属别类的贵重金属及其合金，以及不属别类的贵重金属制品或镀有贵重金属的物品；珠宝，宝石；钟表和计时仪器。

Precious metals and their alloys and goods in precious metals or coated therewith, not included in other classes; jewellery, precious stones; horological and chronometric instruments.

不属别类的贵重金属及其合金，以及不属别类的贵重金属制品或镀有贵重金属的物品；珠宝，宝石；钟表和计时仪器。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。