The existence of carbonyl group in structure seems to be a factor that favors the formation of quasi-molecular ion ( QMI) or other adduct molecular ion ( OAMI) in positive mode. 化合物结构中羰基的存在似有利于化合物在正离子模式下形成准分子离子或其它分子加和离子。
Studies on the Adduct Reaction of Disubstituted Benzene with Ion System of Acetyl Chloride in Gas Phase 气相中双取代苯在乙酰氯离子体系中的加合反应研究
The fragmentation reaction of the adduct ion formed by ortho-phenylenediamine with acetyl ion was similar to the reductive alkylation reaction of amine in condensed phase. 邻苯二胺与乙酰基离子形成的加合离子在碎裂反应过程中可以发生与液相中胺的还原烷基化反应相类似的碎裂反应。