碳离子,carbon ion英语短句,例句大全

碳离子,carbon ion
1)carbon ion碳离子

英文短句/例句

1.An anion in which carbon carries a negative charge and an unshared pair of electrons.负碳离子，阴碳离子一种阴离子，其中碳带一个负电荷和一个非共用电子对
2.Zwitterions Mediated Carbon-Carbon and Carbon-Heteroatom Bond-Forming Reactions;两性离子参与的碳—碳和碳—杂原子键形成反应
3.Ammonium carbonate decomposes to ammonium and bicarbonate.碳酸铵进一步分解为铵离子和碳酸氢根离子。
4.Carbonation is the combination of carbonate or bicarbonate ions with minerals.碳酸作用是碳酸根离子或重碳酸根离子与矿物的化合作用。
5.The net result is thus a reduction in the concentration of carbonate ions.氢离子容易和碳酸盐离子结合，形成碳酸氢盐离子，最后导致碳酸盐离子浓度降低。
6.Progress in CO_2 separation and fixation by ionic liquids离子液分离/固定二氧化碳的研究进展
7.Contamination of Drilling Fluid by Carbonate Ion and Bicarbonate Ion and Its Treatment碳酸根和碳酸氢根离子对钻井液的污染及处理
8.The anions produced are carbanions.由此而产生的负离子，人们称之为碳负离子。
9.Research on Oilwell Cement Corrosion by Chloride Ion and Bicarbonate Ion Versus氯离子与碳酸氢根离子对油井水泥的腐蚀研究
10.Studies on the Palladium and Ruthenium Catalyzed Carbon-heteroatom and Carbon-Carbon Bond Formation Reactions in Ionic Liquids离子液体中钯、钌催化的碳—杂键和碳—碳键形成反应研究
11.new technology of ionitro-carbon-titanizing离子氮-碳-钛三元共渗新工艺
12.Preparation of BCN thin films by ion beam assisted pulsed laser deposition离子束辅助脉冲激光沉积硼碳氮薄膜
13.Investigation of Plasma Electrolytic Carbonitriding Technique in Solution;液相等离子体电解碳氮共渗技术研究
14.Research on Silicon/Carbon Composite Materials for Lithium Ion Battery;锂离子电池硅碳复合材料的性能研究
15.THE TEACHING STUDY OF REACTIVE INTER-MEDIATE-CARBONIUMIONS;有机活性中间体—碳正离子的教学研究
16.Application of α-Carbanion to Hydroxyl-Aldehyde Condensation Reaction;α-碳负离子在羟醛缩合反应中的作用
17.Study on Plasma RE Nitrocarburized of Steel AerMet100AerMet100钢等离子体稀土氮碳研究
18.Research Development on Adsorption of Ion from Water with Carbon Nanotubes碳纳米管吸附水体中离子的研究进展

相关短句/例句

Carbon ions碳离子
1.The germination fraction and chromosome aberration of tomato seeds on the Injection depth of carbon ions;碳离子不同入射深度上番茄种子的发芽率和染色体畸变
3)Carbonium ion正碳离子
1.The results show that the formation of dry gas is abided by reaction mechanism involving the cleavage of pentacoordinated Carbonium ion which is formed by the protonation of alkanes over acidic catalyst.结果表明,烷烃分子首先在催化剂酸性中心作用下发生质子化反应,烷烃分子链上易受到氢质子进攻的位置一般在其叔碳原子或碳链中心碳原子附近的C—H键或C—C键处,形成两种反应过渡态物种——五配位正碳离子H-Carbonium和C-Carbonium。
2.Reaction trends of catalytic desulfurization of thiophene were determined based on the reaction energy needed, which was obtained with the AM1 calculation results of thiophene and possible carbonium ions on transition state.采用半经验AM1计算方法 ,利用静态理论对噻吩在分子筛催化剂上的催化裂化脱硫机理进行了量子化学计算研究 ,通过对噻吩分子和可能产生的中间正碳离子的量子化学计算 ,得到各中间反应所需的能量 ,从而判断噻吩催化裂化脱硫反应的趋势 ,证实了氢转移反应在催化裂化脱硫中所起的作用。
3.Their adsorption rate on the molecular sieve catalysts surface and the stability of their carbonium ions were then obtained based on the molecular simulation on these molecules from their dipole moment, 2-dimensional electrostatic potential energy contours and 3-dimensional electrostatic potential energy isosurface.采用半经验的AM1量子化学计算方法和静态理论 ,分别考察了噻吩、 3 甲基噻吩和 2 ,5 二甲基噻吩分子结构特性的不同 ,从偶极矩、各自垂直于芳香环平面的二维电势能分布曲线和整个分子周围三维电势能分布情况等方面分析了它们在分子筛催化剂表面吸附速度的快慢和生成正碳离子稳定性的高低 ,进一步比较了噻吩及其衍生物所生成的正碳离子进一步反应的能量变化 ,从而可判断噻吩及其衍生物裂化脱硫速度的快慢 ,噻吩及其衍生物裂化脱硫的速度由大到小分别为 :2 ,5 二甲基噻吩、 3 甲基噻吩、噻吩。
4)carbenium ion正碳离子
1.In the area of acid-catalyzed reactions,the most of hydrocarbon-converted reactions,such as fluid catalytic cracking,isomerization,alkylation and dimerization,are carried out according to the mechanism of carbenium ion reaction.正碳离子是有机化学反应过程中一种活泼的反应中间体,对于它的研究已经有100多年的历史。
5)carbocation[,kɑ:b?'kei??n]碳正离子
1.Reaction of ferrocenylphenylcarbinol with ethereal solution of boron trifluoride in dichloride methane formed the relevant ferrocenylphenylmethyl carbocation.二茂铁基苯基甲醇与三氟化硼-乙醚溶液在二氯甲烷中作用,形成二茂铁苯基甲基碳正离子。
2.The reaction of ferrocenyl ethylferrocenyl methanol with BF3 in CH_2Cl_2 gave the relevant monoalkylated diferrocenyl carbocations .(二茂铁基、乙基二茂铁基 )甲醇与BF3在二氯甲烷中作用 ,形成相应的双二茂铁甲基碳正离子 ,无需从反应混合物中分离出来 ,该离子便可与正丁胺作用得到标题化合物 ,由元素分析、红外光谱确认了该化合物的结
3.These methanols were treated with BF 3 in CH 2Cl 2 to generate the diferrocenylmethyl carbocations.它们对酸的敏感性很高 ,与BF3 在二氯甲烷中作用可形成稳定的二茂铁基甲基碳正离子 ,无需从溶液中分离出来 ,便可与胺RNH2 [R =C2 H5,n C3 H7,n C4H9,HOCH2 CH2 ,HOCH(CH3 )CH2 ,HOCH2 CH(C2 H5) ]作用得到产率颇高的二茂铁基胺。
6)carbanion[英]['kɑ:b?nai?n][美][kɑr'b?n,a??n, -,a?,ɑn]碳负离子
1.S_(RN)1 Reaction of 2,2,2-Trifluoroethyl Halides with Carbanion;2,2,2-三氟卤乙烷和碳负离子的自由基亲核取代反应
2.2,6-dichloro-5-fluoro-nicotine acid was treated with Sulphurous oxychloride,to give 2,6-dichloro-5-fluoronicotinoyl chloride,then reacted to carbanion.以2,6-二氯-5-氟-吡啶-3-羧酸,二氯亚砜为原料发生亲核取代反应制得2,6-二氯-5-氟-吡啶-3-酰氯;以β二羰基化合物丙二酸二乙酯与乙醇镁反应生成强亲核试剂[C2H(COOC2H5)2]-碳负离子;它再与2,6-二氯-5-氟-吡啶-3-酰氯发生亲核取代反应制得(2,6-二氯-5-氟-吡啶-3-羰基)丙二酸乙酸乙酯;在对甲苯磺酸的作用下经过酯的水解和β-二酸的脱羧得目的产物(2,6-二氯-5-氟-吡啶-3-羰基)-乙酸乙酯。