Details

Autor(en) / Beteiligte

• Veinot, Alex J
• Griffiths, Matthew B. E
• Singh, Ishwar
• Zurakowski, Joseph A
• Lummis, Paul A
• Barry, Seán T
• Crudden, Cathleen M

Titel

Evaluating the thermal behaviour of benzimidazolylidene sources for thin-film applications

Ist Teil von

• Materials advances, 2022-08, Vol.3 (16), p.6446-645

Erscheinungsjahr

2022

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• We show that the N-heterocyclic carbene precursor employed has a significant influence on the purity of the resulting films prepared by vapour-phase deposition. 1,3-Diisopropylbenzimidazolylidene is stable up to 363 K, before undergoing thermal decomposition to 1,2-diisopropylbenzimidazole as the major product. Various minor products arising from wing-tip loss are also observed. Kinetic and thermochemical analyses indicate that this reaction is second-order with respect to the carbene and proceeds through a transient tetraazafulvalene. We show that the N-heterocyclic carbene precursor employed has a significant influence on the purity of the resulting films prepared by vapour-phase deposition.