毒理性
其他毒物 - 简单窒息剂
Other Poison - Simple Asphyxiant
来源:Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
甲烷-D4是甲烷的同位素衍生物,简称CD4。作为最简单的有机物之一,甲烷及其同位素衍生物的分子光谱早在实验研究中就被探讨过,而甲烷也一直是量子化学计算中的重要算例。
分子几何构型使用HF/6-31G**、B3LYP/6-31G**、MP2/6-31G以及MP4/6-31G等方法对甲烷和甲烷-D4进行了全面的几何构型优化,得出C-H键长为0.1084 nm、C-D键长同样为0.1084 nm,H-C-H键角均为109.5°。这些结果与实验数据高度一致(表1)。
用途甲烷-D4主要用作核磁共振试剂、制药及合成原料、光电材料改性剂、实验室专用试剂、化学品以及科研和检测中的重要工具。
The reaction of CH3 and CD3 radicals with hydrogen and deuterium have been investigated, acetone being used as a source of methyl radicals. The results indicate (1) that the substitution of D2 for H2 has a considerable effect, (2) the substitution of CD3 for CH3 has relatively little effect. (3) It is concluded that, contrary to the results of Burton et al., the activation energy of the reaction[Formula: see text]is 9.7 ± 0.6 kcal.