Studies in crystal engineering: Crystal packing, topological photodimerization and structure-reactivity correlations in fluoro-substituted styrylcoumarins
Data(s) |
01/03/1997
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Resumo |
In continuation of our studies on the influence of fluoro substitution on the solid state photobehaviour and packing pattern of styrylcoumarins, the results obtained for 4-(3-fluorostyryl)coumarin 1, 4-styryl-6-fluorocoumarin 2 and 4-styryl-7-fluorocoumarin 3 are presented. The configuration of the dimers was established on the basis of crystal packing of 1 and 2 (alpha-packed). A rationale for the significantly lower dimer yield in the crystal for 2 is proposed. In the observed centrosymmetric arrangement of the reactants the C=O ...pi (phenyl) contacts seem to provide additional attractive interactions. C-H ... O and C-H ... F hydrogen bonding seems to provide stability in these structures. |
Formato |
application/pdf |
Identificador |
http://eprints.iisc.ernet.in/38496/1/Studies_in_crystal_engineering.pdf Vishnumurthy, Kodumuru and Row, Tayur Guru N and Venkatesan, Kailasam (1997) Studies in crystal engineering: Crystal packing, topological photodimerization and structure-reactivity correlations in fluoro-substituted styrylcoumarins. In: Perkin Transactions 2 (3). pp. 615-619. |
Publicador |
Royal Society of Chemistry |
Relação |
http://pubs.rsc.org/en/content/articlehtml/1997/p2/a604274k http://eprints.iisc.ernet.in/38496/ |
Palavras-Chave | #Organic Chemistry #Solid State & Structural Chemistry Unit |
Tipo |
Journal Article PeerReviewed |