Oscillations of the lophyl radical concentration during the photodecomposition of o-Cl-hexaarylbisimidazole

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

Hexaarylbisimidazole (HABI) is a well established photoinitiator in the graphics industry which undergoes in the absence of other reaction partners a fully reversible homolytic bond cleavage into two lophyl radicals L. Surprisingly we now found oscillations of the radical concentration at low temperature in a solution of o-Cl-HABI in toluene, which is an indication of a more complex photochemistry of the HABI/lophyl system. Furthermore this reaction is a very simple example of an oscillating chemical system working under non-flow conditions which involves only one initial reactant. A possible reaction mechanism based on kinetic simulations is proposed.

Detaljer

Författare
Externa organisationer
  • Thüringisches Institut für Textil- und Kunststoff-Forschung
  • Leibniz Institute for Tropospheric Research
  • Technische Universität Ilmenau
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Kemi
  • Miljövetenskap

Nyckelord

Originalspråkengelska
Sidor (från-till)60-64
TidskriftJournal of Photochemistry and Photobiology A: Chemistry
Volym233
StatusPublished - 2012
PublikationskategoriForskning
Peer review utfördJa
Externt publiceradJa