氢化物
- 与 氢化物 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The research indicated that the magnesium hydroxide has the verystrong adsorption to sea water boride. the solution pH influence the adsorption process obviously.
研究表明,氢氧化镁对海水中的硼化物有很强的吸附作用,溶液的pH值对吸附过程影响明显。
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This wor k deals with the effects ten of bromides and iodobenzene in catalytic hydrogenolysis debenzylation of 2,4,6,8,10,12-Hexabenzyl-2,4,6,8,10,12-hexaazaisowurtzitane.
研究了溴苯等10种溴化物及碘苯在六苄基六氮杂异伍兹烷催化氢解脱苄中的作用。
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By comparison, multivalent transition metal halides have the best catalytic activity to the Mg-based hydrogen storage materials.
比较发现,多价态过渡族金属卤化物对镁基储氢材料具有最好的催化作用。
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Tergitol or PEG (0.5 g) was added to 10 mL of a 20% solution of alkyl halide in phenylacetonitrile, and then this solution was added to 10 mL of 60% aqueous potassium hydroxide.
Tergitol或聚乙二醇( 0.5 g )项增加了10毫升的 20 %的溶液中苯乙腈烷基卤化物,和那么这个解决办法是增加了10毫升的60 %水氢氧化钾。
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The reaction of the compound - 3 - triaiylstannyl -1,1 - diphenyl - 2 - propenyl - 1 -ol with ICl,Br2,I2 formed organotin halides ,which reacted with KOH to form organotin oxide or hydroxide.
首次以非碳环醇-3-三芳基锡基-1,1-二苯基-2-丙烯基-1-醇[Ph_2 CCH=CHSnAr_3]和卤素或拟卤素发生取代反应得到卤化物,并以此合成了氢氧化物、氧化物和配合物。
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In this double-blind trial at the University Hospital in Bern, Switzerland, 553 patients enrolled after successful angioplasty of at least one significant coronary stenosis of at least 50% were randomized to treatment with a combination of folic acid (1 mg/d), vitamin B12 (cyanocobalamin, 400 g/d), and vitamin B6 (pyridoxine hydrochloride, 10 mg/d), or with placebo for six months.
瑞士伯恩市大学医院所进行的双盲试验,共有553名患者,其至少有一条冠状动脉狭窄超过50%,并经过成功的血管重建术,这些患者被随机分配接受叶酸(1 mg/d)、维生素B12 (氰钴维生素, 400 Ig/d)联合治疗和维生素B6 (维生素B6 的氢溴化物, 10 mg/d)治疗,或安慰剂治疗,时间是6个月。
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According to the H NMRstudy, it was found that the protons on the cyclopentadienyl ring of 〓 were not splitted, but when one proton on the cyclopentadienylring was substituted by methyl, that is in〓 complexes, thefour protons on the ring were splitted into four groups,the 〓 between the onesignal and the others is large, the total splitting is over 2ppm. The splittings werealso affected by the halides linked with the titanium, they increase according to theorder of CI, Br, I. By the study of the 〓 Sn NMR, it is found that the chemicalshifts of 〓 are present in low field. It is assume that the large space strain causesthe angles of the tin linked with ligands deviate from the normal tetrahedral anglesresults low field shift for 〓Sn. And by MS study,there were no molecular ions for 〓 complexes in the spectra. However, for 〓 when X=CI,Br,NCO and Ar is tolyl or phenyl group,there were molecular ions,but theirabundances were very small,and no that for the iodide was found.
钛上的卤素对茂环氢的裂分也有影响,依〓,Br,I顺序,卤素对茂环氢的裂分依次加大;通过对〓的研究发现,以上这些化合物〓的化学位移都出现在低场,认为大的空间张力造成的锡的键角偏离正常的锡的四面体键角是造成〓化学位移出现在低场的原因;对这些化合物质谱的研究发现,〓系列化合物得不到分子离子峰,而〓系列的化合物,当X=〓,NCO和苯环上不带取代基或只带甲基时,则出现分子离子峰,但丰度很低,而相应的碘化物和其它化合物则没出现分子离子峰。
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The hydroperoxide may be decomposed by Cu2+ to form alkoxyl free radicals,which increased the rate of the whole reaction.In the meanwhile,1-butyl-3-methylimidazolium hydroxide was studyed for the oxidation of cumene and DIPB.
在研究复合固体无机碱的同时,本文还研究了碱性离子液体1-丁基-3-甲基咪唑氢氧化化物等有机碱在氧化中的催化性能。
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In this project, we have prepared conveniently Si-Mg 1,1-difunctional group reagents-α-silylvinyl Grignard reagents by hydromagnesiation of alkynylsilanes; Se-Br 1,1-difunctional group reagents-α-bromovinylselenides by hydrobromination of alkynylselenides; Sn-Br and Sn-I 1,1-difunctional group reagents by hydrozirconation of alkynylstannanes followed by halogenating reaction.
本项目通过炔基硅烷的镁氢化反应,方便地制得了Si-Mg 1,1-双官能团试剂-α-硅基烯基镁化物;通过炔基硒醚的溴氢化反应,方便地制得了Se-Br 1,1-双官能试剂-α-溴代烯基硒醚;通过炔基锡烷的锆氢化反应,继而卤代方便地制得了Sn-Br和Sn-I 1,1-双官能试剂。
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Epoxidation, Hydroboration (Anti-Markovnikov Addition), Osmylation and Ozonolysis. Alkene Polymerization. Barbara Imperiali
氢化,HX 的加成(Markovnikov加成),卤化,环氧化,氢硼化(反-Markovnikov加成),臭氧化与臭氧化物分解,烯烃聚合。
- 推荐网络例句
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I didn't watch TV last night, because it .
昨晚我没有看电视,因为电视机坏了。
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Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.
今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。
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I'm running my simile to an extreme.
我比喻得过头了。