GC/MS Analyses of Thiosemicarbazones Synthesized from Acetophenones: Thermal Decay and Mass Spectra Features

作     者：Belén Gastaca Gastón Galletti Hernán Rubén Sánchez Reinaldo Pis Diez María de las Mercedes Schiavoni Jorge Javier Pedro Furlong 

作者机构：Laboratorio de Estudio de Compuestos Orgánicos (LADECOR) Departamento de Química Facultad de Ciencias Exactas Universidad Nacional de La Plata La Plata Argentina CEQUINOR Centro de Química Inorgánica (CONICET UNLP) Facultad de Ciencias Exactas UNLP La Plata Argentina 

出 版 物：《International Journal of Analytical Mass Spectrometry and Chromatography》 (分析质谱与色谱期刊（英文）)

年 卷 期：2015年第3卷第1期

页      面：1-13页

学科分类：07[理学] 0703[理学-化学] 

主　　题：Thiosemicarbazones Mass Spectrometry Analyses Dimerization of Thiosemicarbazones 

摘      要：The mass spectral fragmentation of thiosemicarbazones synthesized from acetophenones has been studied by CG/MS. These carbonyl compounds exhibit chromatographic peaks which are not observed in aliphatic analogues or those synthesized from aldehydes. The analysis of the corresponding spectra has allowed structural assignment to the dimerization of gas phase neutral fragments. Theoretical calculations (DFT level) also provide evidence to support the experimental observations.