NH2 CH3 CH3 NO2+H2N N ON=� NO CH3 CH3 上一篇:175U氮氧化物NO+NO2气体测毒管175U NITROGEN OXIDES 0.5-30ppm 下一篇:117SB二氧化氮NO2气体测毒管117SB NITROGEN DIOXIDE 0.5-30ppm 返回列表>> 相关产品 290PII汽油/煤油检测管290PII118SB苯气体检测管118SB BENZENE 5-300ppm713室内空气甲醛检测管No...
NH2 CH3 CH3 NO2+H2N ON=� NO CH3 CH3 上一篇:117SA二氧化氮NO2气体检测管117SA NITROGEN DIOXIDE 20-1000ppm 下一篇:117SD低浓度二氧化氮NO2气体检知管117SD NITROGEN DIOXIDE 0.1-1.0ppm 返回列表>> 相关产品 290PII汽油/煤油检测管290PII118SB苯气体检测管118SB BENZENE 5-300ppm713室内空气甲醛检测管...
Enter the formula of a chemical compound to find the oxidation number of each element. A net ionic charge can be specified at the end of the compound between { and }. For example: ZnCl4{2-} or NH2NH3{+}. Enter just an element symbol to show the common and uncommon oxidation states ...
Step 2: Multiply coefficients for compounds to balance out each element For each element that is not equal, try to balance it by adding more of it to the side with less. Sometimes there may be multiple compounds with that element on one side, so you'll need to ...
Znis not balanced. Add2molecules ofZnto the reactant (left-hand) side to balance Zinc: C6H5NO2+3Zn +6HCl = C6H5NH2+3ZnCl2+2H2O ReactantsProducts C66✔️ H1111✔️ N11✔️ O22✔️ Zn33✔️ Cl66✔️
It is defined asE(X) =E(R-X)E(R), where R is the unsubstituted system; X = NH2, NO2. Changes in the energy of the substituents, estimated for the benzene analog,Erel(X), allow the energy of the various substituents to be compared. The obtained values are interpreted through ...
It was found that the π-electronic system showed a more pronounced shielding effect on all ring hydrogen atoms, relative to benzene, irrespective of substituent +R/R effects. For the latter, this was in contrast to the traditional explanations of downfield shift of nitrobenzene proton resonances,...
Calculated results show that C-NO2 bonds increase as-NH2 groups are introduced in to benzene and decrease impact sensitivity of these nitrobenzenes. 在B3LYP/6-31+G*理论水平上优化了一系列取代硝基苯类化合物的几何构型,计算了它们的电子结构和Wiberg键级,结果表明,随着氨基的引入,起爆引发键C-NO2键的...
Calculated results show that C-NO2 bonds increase as-NH2 groups are introduced in to benzene and decrease impact sensitivity of these nitrobenzenes. 在B3LYP/6-31+G*理论水平上优化了一系列取代硝基苯类化合物的几何构型,计算了它们的电子结构和Wiberg键级,结果表明,随着氨基的引入,起爆引发键C-NO2键的...
The nitro-group is symmetrical and lies in the plane of the benzene ring. In addition to rather weak hydrogen bridges connecting the oxygen atoms of the nitro-group to the amino-groups of adjoining molecules, there is a very close approach (2.7–3.0 A.) between one of the nitro-oxygen ...