Radicals from the gas-phase pyrolysis of a lignin model compound:: P -coumaryl alcohol

Meng Xia Xu, Lavrent Khachatryan, Alexander Baev, Rubik Asatryan

Research output: Journal PublicationArticlepeer-review

11 Citations (Scopus)

Abstract

The intermediate radicals produced in the gas-phase pyrolysis of one of the main building blocks of lignin-p-coumaryl alcohol (p-CMA)-were investigated using the low temperature matrix isolation technique interfaced with electron paramagnetic resonance spectroscopy (LTMI-EPR). An anisotropic EPR spectrum characterized by a high g-value (>2.0080) and a relatively low saturation coefficient (∼1.40) throughout the high pyrolytic temperature region (700 to 1000 °C) was observed. Theoretical calculations revealed plausible decomposition pathways for p-CMA comprising highly delocalized aromatic radicals. The results provide evidence for a dominant role of oxygen-centered radicals during the pyrolysis of p-CMA.

Original languageEnglish
Pages (from-to)62399-62405
Number of pages7
JournalRSC Advances
Volume6
Issue number67
DOIs
Publication statusPublished - 2016
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry (all)
  • Chemical Engineering (all)

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