Lee, UC Lee, W Kim, YJ Park, SJ Ra, DY Cho, NS 2024-01-21T18:40:18Z 2024-01-21T18:40:18Z 2021-09-05 1997-02 0308-664X https://pubs.kist.re.kr/handle/201004/143967 Fragment pathways of 3-alkyl and acyl-5-amino-1,3,4-thiadiazolin-2-ones were completely assigned by mass analyzed kinetic energy spectra (MIKE), collisional activated dissociation (CAD) spectra and high resolution mass spectra. [NH2CS](+) and [S=C=O](+) ions were directly formed from molecular ion of the 3-alkyl compounds and from 5-amino-3H-1,3,4-thiadiazolin-2-one ion (1) which was produced by McLafferty rearrangement from molecular ion of 3-acyl compounds. A loss of neutral SCO was only detected from 3-alkyl substituted molecular ions. English GORDON BREACH SCI PUBL LTD Mass spectrometric studies of 3-substituted-5-amino-1,3,4-thiadiazolin-2-ones Article 10.1080/10426509708043560 1 PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS, v.126, pp.201 - 210 PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS 126 201 210 N scie scopus 000074794400020 2-s2.0-0042096368 Chemistry, Inorganic & Nuclear Chemistry, Organic Chemistry Article 3-substituted-5-amino-1,3,4-thiadiazolin-2-ones MIKE and CAD spectra