【题目】胺是有机碱。甲胺(CH3NH2)是最简单的胺。(1)写出甲胺及其共轭酸甲基铵离子的Lewis 结构。(2)描述氮在甲胺和甲基铵离子中的局部几何结构和杂化情况。(3
碱性顺序是 (CH3)2NH > CH3NH2 > NH3 pkb分别是3.27、3.34和4.75 因为甲基是给电子基，所以氮上甲基的引入会增加氮的电子云密度，使孤对电子能量升高，碱性增强。但是这个规律不能推广到三甲胺（pkb=4.20），因为三个甲基产生较大的位阻妨碍了氮给出其孤对电子。
网友 1 最佳答案 回答者:网友碱性顺序是 (CH3)2NH > CH3杀NH2 > NH3pkb分别是3.27、3.34和4.75因为甲基是给电子基,所以氮上甲基的引入会增加氮的电子云密度,使孤对电子能量升高,碱性增强。印但是这个规律不能推广到三甲胺(pkb=4.20),因为三个甲基产生较大的位阻妨碍了模京知洲出垂企氮给出其孤对电子。我...
百度试题 题目按照Lewis酸碱理论,下列物质中碱性最强的是( )。? CH3NH2NH3苯胺(CH3)2NH 相关知识点: 试题来源: 解析 (CH3)2NH 反馈 收藏
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Draw the Lewis structure of CH_2N_2. The sigma-bond network is given to you. Draw the appropriate Lewis structure corresponding to HCN. Draw the appropriate Lewis structure corresponding to I_3^-. Draw the appropriate Lewis structure corresponding to OCN^-...
根据Lewis酸碱理论,化合物NH3、CH3NH2、C2H5OC2H5、CH3CH2COOH、CH3CH2OH、Cu2+、FeCl3中,属于Lewis酸的是( )。A C
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利用路易士結構表示共價鍵 國立交通大學應用化學系 李大偉老師 繪製Lewis Structure步驟1 :Draw a Skeleton Structure • 分子排列原則 練習題: • 先確認終端點的原子: H, F, Cl, Br, I 試試看繪製硝酸分子 • 確認終端點的原子團: -CH , -NH , -OH, -COOH 3 2 HNO3的路易士結構 • 選擇「...
For glycine, the acid strength of the carboxyl group is about the same as that of acetic acid, CH3CO2H, and the base strength of the amino group is slightly greater than that of ammonia, NH3. Write the Lewis structures of the ions that form when glycine is dissolved in 1 M HCl ...