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A Photoionization Study on the Detection of 1‐Sila Glycolaldehyde (HSiOCH 2 OH), 2‐Sila Acetic Acid (H 3 SiCOOH), and 1,2‐Disila Acetaldehyde (HSiOSiH 3 )
Author(s) -
Chandra Sankhabrata,
Eckhardt André K.,
Turner Andrew M.,
Tarczay György,
Kaiser Ralf I.
Publication year - 2021
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202004863
Subject(s) - glycolaldehyde , acetaldehyde , chemistry , photoionization , acetic acid , sublimation (psychology) , mass spectrometry , analytical chemistry (journal) , infrared spectroscopy , dissociation (chemistry) , photochemistry , ionization , organic chemistry , catalysis , ethanol , psychology , ion , chromatography , psychotherapist
The identification of silicon‐substituted, complex organics carrying multiple functional groups by classical infrared spectroscopy is challenging because the group frequencies of functional groups often overlap. Photoionization (PI) reflectron time‐of‐fight mass spectrometry (ReTOF‐MS) in combination with temperature‐programmed desorption (TPD) holds certain advantages because molecules are identified after sublimation from the matrix into in the gas phase based on distinct ionization energies and sublimation temperatures. In this study, we reveal the detection of 1‐silaglycolaldehyde (HSiOCH 2 OH), 2‐sila‐acetic acid (H 3 SiCOOH), and 1,2‐disila‐acetaldehyde (H 3 SiSiHO)—the silicon analogues of the well‐known glycolaldehyde (HCOCH 2 OH), acetic acid (H 3 CCOOH), and acetaldehyde (H 3 CCHO), in the gas phase after preparation in silane (SiH 4 )–carbon dioxide ices exposed to energetic electrons and subliming the neutral reaction products formed within the ices into the gas phase.