Photo-activated valence isomerization of hexamethyl(Dewar benzene)(HMDB) assisted by arene–iron(II) complexes: luminescence properties of [HMDB ⋯(η5-C5R5)Fe(η6-arene)]* adducts
- 1 January 1984
- journal article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 16,p. 1067-1068
- https://doi.org/10.1039/c39840001067
Abstract
Hexamethyl(Dewar benzene)(HMDB) isomerizes to hexamethylbenzene (HMB) under light irradiation in the presence of stoicheiometric or catalytic amounts of the cationic complexes [(η5-C5R5)Fe(η6-arene)]+X–, (R = H, Me; X = BF4 –, PF6 –), (1a–e) and (2), in dichloromethane solutions at 273 K; mixtures of HMDB and (1b–e) or (2) in dichloromethane exhibit a luminescence band at 530–540 nm probably due to formation of the corresponding exciplex.Keywords
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