Differentiation of isomeric sulfur heterocycles by electron ionization mass spectrometry: 1,4-dithiins, 1,4-dithiafulvenes and their analogues tetrathianaphthalenes, tetrathiafulvalenes and tetrathiapentalenes.
Differentiation of isomeric sulfur heterocycles by electron ionization mass spectrometry: 1,4-dithiins, 1,4-dithiafulvenes and their analogues tetrathianaphthalenes, tetrathiafulvalenes and tetrathiapentalenes.
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通过电子电离质谱法区分异构硫杂环：1,4-二硫英、1,4-二硫富烯及其类似物四硫萘、四硫富瓦烯和四硫五烯。
DOI：
10.1002/rcm.946
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
H. Müller
中科院分区：
文献类型：
--
作者：
J. Garín;J. Orduna;José M Royo;A.;H. Müller
研究了标题化合物的电子电离质谱，沿着研究了它们的亚稳或碰撞活化分子离子的产物离子谱。光谱中离子的相对丰度允许明确的异构体区分。在四硫杂萘和四硫富瓦烯的亚稳离子谱中观察到分子离子的异构化。这种异构化反应平行于溶液中观察到的电化学或碱诱导的异构化。所研究的四硫杂戊二烯衍生物不重排为相应的四硫富瓦烯或四硫杂萘异构体。
The electron ionization mass spectra of the title compounds have been studied along with the product ion spectra of their metastable or collisionally activated molecular ions. The relative abundances of ions in the spectra allow unambiguous isomer differentiation. Isomerization of the molecular ions was observed in the metastable ion spectra of tetrathianaphthalenes and tetrathiafulvalenes. This isomerization reaction parallels the electrochemical or base-induced isomerization observed in solution. The studied tetrathiapentalene derivative does not rearrange to the corresponding tetrathiafulvalene or tetrathianaphthalene isomers.