Cyclic conjugation in benzo-annelated coronenes
Macedonian Journal of Chemistry and Chemical Engineering, 2010 The cyclic conjugation in benzo-annelated coronenes is studied by means of the energy effect (ef) and π-electron content (EC) of the six-membered rings.
Svetlana Jeremić +2 more
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Annelated perylenes: benzenoid molecules violating the Kekulé-structure-based cyclic conjugation models [PDF]
Journal of the Serbian Chemical Society, 2005 Several currently used models for assessing the extent of cyclic conjugation in benzenoid hydrocarbons, all based on Kekulé-type structural formulas, predict that there is no cyclic conjugation in the central, “empty”, ring of perylene and its annelated ...
IVAN GUTMAN +4 more
doaj +3 more sources
Verifying the PCP-rule by five-center bond indices [PDF]
Journal of the Serbian Chemical Society, 2009 According to the recently discovered PCP-rule, the (stabilizing) energy-effect of the cyclic conjugation in the 5-membered ring of acenaphthylene- and fluoranthene-type polycyclic conjugated hydrocarbons increases with the number of phenyl ...
JELENA ĐURĐEVIĆ +2 more
doaj +3 more sources
Cyclic conjugation in benzo- and benzocyclobutadieno-annelated terrylenes and higher rylenes [PDF]
Journal of the Serbian Chemical Society, 2012 The effect of benzo- and benzocyclobutadieno-annelation on cyclic conjugation in terrylene and the higher members of the rylene homologous series is examined.
Marković Marija +2 more
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Verifying the modes of cyclic conjugation in tetrabenzo[bc,ef,op,rs]circumanthracene [PDF]
Journal of the Serbian Chemical Society, 2012 Cyclic conjugation in the "empty" central ring of tetrabenzo- [bc,ef,op,rs]circumanthracene (TBCA) is stronger than in its neighboring "nonempty" rings, contradicting the predictions of Kekulè-structure-based theoretical models.
Gutman Ivan +3 more
doaj +1 more source
Testing the Clar theory: Cyclic conjugation in some benzo- and naphthaleno-annelated ovalenes [PDF]
Kragujevac Journal of Science, 2014 Cyclic conjugation (assessed by its energy effect) is studied in benzo- and naphthaleno-annelated ovalenes, in which annelation is in positions d and o.
Gutman Ivan +2 more
doaj +1 more source
Chameleon-like behaviour of cyclo[n]paraphenylenes in complexes with C70: on their impressive electronic and structural adaptability as probed by Raman spectroscopy [PDF]
, 2014 Este artículo ha sido publicado por Royal Society of ChemistryA series of four 1:1 host-guest supramolecular complexes of [n]CPPs and C70 have been analyzed by Raman spectroscopy in solid state and complemented with the analysis of their spectroscopic ...
Casado-Cordon, Juan
core +1 more source
RSC Advances, 2018 By alternating high aromaticity and reduced aromaticity in an extended fused π-system, a high triplet energy can be obtained.
Kai Lin Woon +3 more
openaire +4 more sources
Topological Lensing in Spherical Spaces [PDF]
, 2001 This article gives the construction and complete classification of all three-dimensional spherical manifolds, and orders them by decreasing volume, in the context of multiconnected universe models with positive spatial curvature.
Beardon A F +38 more
core +2 more sources
Extended π-conjugated pyrene derivatives: structural, photophysical and electrochemical properties [PDF]
, 2016 This article presents a set of extended π-conjugated pyrene derivatives, namely 1,3-di(arylethynyl)-7-tert-butylpyrenes, which were synthesized by a Pd-catalyzed Sonogashira coupling reaction of 1,3-dibromo-7-tert-butylpyrenes with the corresponding ...
Bordeau +42 more
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