教師資料查詢 | 類別: 期刊論文 | 教師: 吳慧芬 HUI-FEN WU (瀏覽個人網頁)

標題:Ethylenediamine as a liquid chemical reagent to probe hydrogen bonding and host-guest interactions with crown ethers in an ion trap tandem mass spectrometer
學年92
學期2
出版(發表)日期2004/06/30
作品名稱Ethylenediamine as a liquid chemical reagent to probe hydrogen bonding and host-guest interactions with crown ethers in an ion trap tandem mass spectrometer
作品名稱(其他語言)
著者吳慧芬; Wu, Hui-fen; Lin, Pei-yi
單位淡江大學化學學系
出版者John Wiley & Sons
著錄名稱、卷期、頁數Rapid Communications in Mass Spectrometry 18(12), pp.1365-1373
摘要Ethylenediamine (EDA) was used as a novel liquid chemical reagent to probe hydrogen bonding and host-guest interactions with crown ether derivatives in an ion trap mass spectrometer (ITMS). Selective ion/molecule reaction product ions were generated by reactions of EDA with oxygenated and aza-crown ethers. For the oxygenated crown ethers, glycols and dimethylglycols, ion/molecule reactions led to the formation of the protonated molecules ([M+H]+) and adduct ions including [M+30]+, [M+44]+ and [M+61]+. The aza-crown ethers produced [M+H]+, [M+13]+ and [M+27]+ ions. Collisionally activated dissociation (CAD) experiments were applied to probe the binding strength of these ion/molecule reaction products. CAD results indicated that all these hydrogen-bonding complexes are weakly bound except for the [M+44]+ ion of 18-crown-6, since all the complexes dissociate to the protonated polyether and/or protonated EDA. Fragmentation of the [M+H]+ ions under CAD conditions indicates the extensive covalent bond cleavage of the protonated crown ether skeleton. Copyright © 2004 John Wiley & Sons, Ltd.
關鍵字
語言中文
ISSN0951-4198
期刊性質國內
收錄於
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
出版型式,電子版
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