醋酸

Five new Mn metal-organic coordination polymers, _n (1),{·1.5H_2O}_n (2), _n (3), _n (4) and {[Mn_3_2_2_2(H_2O)_2]·2H_2O}_n (5), were prepared through hydrothermal reactions of Mn acetate with H_2tbip or H_2mip in the presence of different dipyridyl co-ligands.

利用5-叔丁基间苯二甲酸、5-甲基间苯二甲酸和醋酸锰以及不同含氮辅助配体在水热条件下自组装得到了5个配位聚合物，_n(1)，{·1.5H_2O}_n(2)，_n(3)，_n(4)和{Mn_3_2_2_2·2H_2O}_n(5)。

This dissertation is mainly focused on the reactivity of methylenecyclopropanes and comprises six parts. 1 The reactions of methylenecyclopropanes with phenylsulfenyl chloride, phenylselenyl chloride and diphenyl diselenide; 2 The coupling reactions of the ring-opening products derivated from methylenecyclopropanes; 3 The palladium-catalyzed ring-enlargement of mono-aryl group substituted methylenecyclopropanes to cyclobutenes. 4 The gold-catalyzed domino ring-opening and ring-closing hydroamination of methylenecyclopropanes with sulfonamides; 5 The Lewis acid-catalyzed reactions of mono-aryl group substituted methylenecyclopropanes with diethyl ketomalonate in the presence of water; 6 The iodobenzene diacetate mediated novel 1,3-dipolar cycloaddition of methylenecyclopropanes, vinylidenecyclopropanes, and methylenecyclobutane with phthalhydrazine.

本论文主要研究了亚甲基环丙烷类化合物的一些化学反应性能，共由以下六部分组成：1、亚甲基环丙烷类化合物与苯硫氯、苯硒氯及二苯基二硒的反应；2、亚甲基环丙烷类化合物开环产物的偶联反应；3、单芳基取代的亚甲基环丙烷类化合物在钯催化剂作用下的扩环反应；4、金化合物催化磺酰胺对亚甲基环丙烷类化合物的串联开环关环氨氢化反应；5、路易斯酸催化亚甲基环丙烷类化合物与丙酮二羧酸二乙酯在有水存在下的反应；6、醋酸碘苯促进的亚甲基环丙烷类化合物、亚乙烯基环丙烷类化合物及亚甲基环丁烷类化合物与邻苯二甲酰肼的新型1，3-偶极环加成反应。

In this thesis, themethod of moments was used in modeling the graft polymerization of vinyl acetatefrom polyethylene glycol and the vinyl/divinyl atom transfer radical copolymerizationwith cross-linking.

本文运用矩方法分别对聚乙二醇接枝醋酸乙烯酯聚合体系和双烯／单烯的原子转移自由基交联聚合体系进行了深入的建模研究。

At the same time, a continuous restraint on the edaphon, including those existing in the tested roots will happen when 50g wood vinegar are added into 1kg organic manure and 30kg soil.However, the influence of pyrolignerous acid and guaiacol were not same with wood vinegars. The reason that wood vinegars can much active the edaphon effectively, is not only the pyrolignerous acid or guaiacol reacted.

此外，通过采用木醋液中的两种主要成份醋酸与愈创木酚对比试验，表明其对土壤微生物数量的影响与木醋液不相关，木醋液能起到增加土壤微生物数量的作用，虽然有可能是其他物质在起主导作用，但更有可能的是多种物质的综合作用。

Wood Vinegar is a natural material that is distilled from wood. It is compose of organic acid and hydroxybenzene , Various dosage of wood vinegars, pyrolignerous acid and guaiacol were mixed into organic manure firstly in this experiment, and then, the above said organic manure are separately added into soil. Under the analysis of the amount of the edaphon, adding 10g wood vinegar to 1kg organic manure and 30kg soil can much active the edaphon effectively in a short term and make a maximum rising extent of edaphon numbers.

木醋液是从多年生柞木中经过高温蒸馏出来的纯天然物质，其主要成分是有机酸和酚类物质，为了明确木醋液和主要成分对土壤微生物的作用，将加入不同剂量的木醋液、愈创木酚、醋酸的有机肥施入土壤，观察土壤中微生物数量的变化，结果表明：在1kg有机肥中加入10g木醋液，施入30kg土壤中，土壤微生物数量增加幅度最大，土壤微生物10d内被有效地激活；同时，当在1kg有机肥中木醋液的添加量高达50g时，对土壤微生物有一定的抑制作用。

Water and NH〓OAc extractable Cu was decreased significantly by these two Elsholtzia after phytoextraction for one season.

种植海州香薷和紫花香薷1—2季以后，土壤中水溶态和醋酸铵提取态Cu的浓度明显下降。

A spectrophotometric simultaneous determination of glutaraldehyde and ethanal based on the reaction between gluaradehyde or ethanal and thiobarbituric acid in acetic acid solution is described.

在醋酸介质中，硫代巴比妥酸与戊二醛及乙醛分别可生成2∶1及1∶1的缩合产物，这两种缩合产物在可见光区具有不同波长的最大吸收，籍此可同时测定戊二醛及乙醛。

Hydroxyethyl carboxymethyl cellulose was synthesized by using chloroethanol as etherify ing agent instead of oxirane and chloroacetic acid without isolating intermediate.

探讨了用氯乙醇代替环氧乙烷和一氯醋酸作醚化剂，不用分离中间产物合成HECMC。

When methoxyethanol was used as the solvent,tantalum ethoxide can be chemically modified with acetic acid to producetantalum alkxo-acylate precursor, and therefore the hydrolysis of 〓can be slowed down.

在以乙二醇单甲醚为溶剂时，乙醇钽与醋酸作用生成乙醇钽的乙酰基配位化合物，可以减弱水解反应的进行。

The LiTaO3 thin film was chosen as infrared sensing film and prepared by a sol-gel process using lithium acetate and tantalum ethoxide as starting materials. The fabrication process of device is discussed in details.

用醋酸锂和乙醇钽作为起始反应物，通过溶胶凝胶工艺生成了对红外敏感的钽酸锂薄膜，并详细讨论了基于钽酸锂薄膜的红外探测器件制备工艺。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。