THE CRYSTAL-STRUCTURE OF AN OCTAETHYLPORPHYRIN DIMER BRIDGED BY A 2,5-DISUBSTITUTED FURAN

Authors
ARNOLD DP LYNCH DE SMITH G KENNARD CHL
Citation
Dp. Arnold et al., THE CRYSTAL-STRUCTURE OF AN OCTAETHYLPORPHYRIN DIMER BRIDGED BY A 2,5-DISUBSTITUTED FURAN, Australian Journal of Chemistry, 46(8), 1993, pp. 1313-1319
Citations number
17
Categorie Soggetti
Chemistry
Journal title
Australian Journal of Chemistry → ACNP
ISSN journal
00049425
Volume
46
Issue
8
Year of publication
1993
Pages
1313 - 1319
Database
ISI
SICI code
0004-9425(1993)46:8<1313:TCOAOD>2.0.ZU;2-Z
Abstract
The crystal structure of a dimer of 2,3,7,8,12,13,17,18-octaethylporph yrin, joined at the meso-positions through a 2,5-disubstituted furan, shows the furan ring to be almost orthogonal to the porphyrin mean pla nes. Bond angles and distances in the furan ring and adjacent parts of the porphyrin rings are distorted due to steric congestion involving the ethyl substituents. The dizinc complex of this bis(porphyrinyl)fur an exhibits a split Soret band in its electronic spectrum; this indica tes strong excitonic coupling between the porphyrin chromophores.