光谱(FTIR,1H NMR,13C NMR, 翻译结果2复制译文编辑译文朗读译文返回顶部 正在翻译,请等待... 翻译结果3复制译文编辑译文朗读译文返回顶部 光谱(红外光谱、 1 H 核磁共振、 核磁共振 13 C, 翻译结果4复制译文编辑译文朗读译文返回顶部 磁共振频谱(ftir、1h核磁共振、13c核磁共振、 ...
分析:图1是未水化硅酸盐水泥的Si-NMR图谱,图谱中主要在化学位移为-71ppm左右存在一个较为尖锐的峰,在此位移的峰主要为孤立的岛状硅氧四而体结构·一般此处存在三个谱峰,分别为70ppm左右71ppm左右以及73ppm左右前两者属于水泥中单矿C3S的化学位移,后者属于C2S的化学位移。 10: 19 F 对于医药小分子,大分子分析...
characterized by elemental analysis, IR, TGA, 1H NMR5个回答 特征元素分析,1H NMR,IR,TGA2013-05-23 12:21:38 回答:匿名 其特点是元素分析、红外、tga、1h核磁共振 2013-05-23 12:23:18 回答:匿名描绘为元素分析, IR, TGA, 1H核磁共振 2013-05-23 12:24:58 回答:匿名元素分析、 红外、 TGA、 1...
FT-IR, 1H NMR, 13C NMRspectra问题补充:匿名 2013-05-23 12:21:38 null 匿名 2013-05-23 12:23:18 FT - IR 、 1 H NMR 、 13 C NMRspectra 匿名 2013-05-23 12:24:58 FT-IR, 1H核磁共振, 13C核磁共振光 匿名 2013-05-23 12:26:38 红外光谱分析、 1h 核磁共振谱,13 C NMRs...
aIn contrast, the 1H NMR spectrum of compound 4 indicates a symmetrical coordination of the substituted pyrrolyl ligand, as evidence by the singlet (d 3.73) observed for the methylene protons of the ligand 相反, 1H核磁共振光化合物4表明被替代的pyrrolyl ligand的对称协调,作为证据由对 (ligand的)...
Using IR, UV-vis, 1HNMR and other means to characterize the structure of compounds2013-05-23 12:21:38 回答:匿名 Using IR , HNMR UV - vis, 1 means such as the structure of compounds in the table, with 2013-05-23 12:23:18 回答:匿名Used...
aThe 1H NMR spectra of 9a shown in Figure 4 before and after irradiation and after warming to room temperature are representative of the changes observed in the 180 rotation process in these systems. 在上图显示的9a 1H核磁共振光4在辐照区域前后和在温暖以后对室温是被观察的变化的代表在180...
aThe presence of two acetoxyl groups in each compound was shown by proton nuclear magnetic resonance(1H-NMR)signals [15,δ1.93 and 1.96(3H,s each);δ1.92 and 1.97(3H,s each)] as well as 13C-NMR signals(表I)。 二个acetoxyl小组存在其中每一化合物由氢核核磁反应(1H核磁共振的)信号(15...
1H-NMR and13C-NMR chemical shifts were referenced to pyridin-d5 at δH8.71,7.55,7.19 and δC149.9,135.3,123.4,respectively,one-bond heteronuclear 1H-13C connectivity was determined by proton-detection HMQC experiments,multiple-bond 1H-13C connectivity was determined by proton-detecting experiments...