摘要
苯基重氮盐质谱研究曾有报导,它同冠醚分子形成的嵌合物质谱也被测定过。本文采用快原子轰击(FAB)研究了苯基重氮盐,(R=OCH_3,CH_3,H,Br,Cl,F,NO_2)同18-冠醚-6以及二苯并-24-冠醚-8形成分子嵌合物的质谱(MS),讨论这类嵌合物准分子离子MNa^+丰度同嵌合物内授-受键的性质之间的关系,并由分子轨道方法计算结果解释了MNa^+的丰度同苯基重氮盐上取代基R性质的关系。
Fast atom bombardment mass spectra of a series of arenediazonium salts with various substituents complexed with 18-crown-6 and dibenzo-24-crown-8 ethers were examined. The correlation between quasi-molecular ion abundance of various complexes and the properties, coordination ability of donor-acceptor linkages in the complexes were studied. By using molecular orbital calculation we have successfully demonstrated that the correlation cited is related to the electron cloud densities on the heteroatoms α-N and β-N of arenediazonium salts.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1991年第2期219-222,共4页
Acta Physico-Chimica Sinica
基金
'北京中关村地区分析测试中心'的测试基金
关键词
苯基重氮盐
冠醚
FAB-MS
嵌合物
Arenediazonium salts
Crown ethers complexs
Fast atom bombardment mass spectrometry
