Results 11 to 20 of about 54,371 (220)
Effect of benzocyclobutadieno-annelation on cyclic conjugation in perylene
Macedonian Journal of Chemistry and Chemical Engineering, 2011 Earlier studies showed that the intensity of cyclic conjugation in the central ring R of perylene can be significantly altered by means of benzo-annelation. In particular, linear (resp. angular) benzoannelation was found to decrease (resp.
Ivan Gutman, Beba Stojanovska
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Why is phenanthrene more stable than anthracene?
Macedonian Journal of Chemistry and Chemical Engineering, 2007 By means of a recently developed molecular-orbital-based method it is possible to estimate the energy effects of individual cycles, as well as pairs, triplets, etc. of cycles in polycyclic conjugated molecules.
Ivan Gutman, Sonja Stanković
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Modular nuclearity: A generally covariant perspective [PDF]
, 2015 A quantum field theory in its algebraic description may admit many irregular states. So far, selection criteria to distinguish physically reasonable states have been restricted to free fields (Hadamard condition) or to flat spacetimes (e.g.
Lechner, Gandalf, Sanders, Ko
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An Analogue of the Kac-Wakimoto Formula and Black Hole Conditional Entropy [PDF]
, 1996 A local formula for the dimension of a superselection sector in Quantum Field Theory is obtained as vacuum expectation value of the exponential of the proper Hamiltonian. In the particular case of a chiral conformal theory, this provides a local analogue
Longo, Roberto
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Benzobisoxazole cruciforms: a tunable, cross-conjugated platform for the generation of deep blue OLED materials [PDF]
, 2016 Four new cross-conjugated small molecules based on a central benzo[1,2-d:4,5-d′]bisoxazole moiety possessing semi-independently tunable HOMO and LUMO levels were synthesized and the properties of these materials were evaluated experimentally and ...
Cai, Min +9 more
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Macedonian Journal of Chemistry and Chemical Engineering, 2012 Within a systematic study of cyclic conjugation in the benzo-annelated derivatives of acenaphthylene and fluoranthene, a general regularity was discovered, named phenyl-cyclopentadienyl rule (PCP rule).
Jelena Đurđević, Ivan Gutman
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A Unified Conformal Field Theory Description of Paired Quantum Hall States [PDF]
, 1998 The wave functions of the Haldane-Rezayi paired Hall state have been previously described by a non-unitary conformal field theory with central charge c=-2. Moreover, a relation with the c=1 unitary Weyl fermion has been suggested.
Cappelli, A. +2 more
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Cyclic conjugation in benzo-annelated triphenylenes [PDF]
Journal of the Serbian Chemical Society, 2010 Cyclic conjugation in benzo-annelated triphenylenes was studied by means of the energy effect (ef) and the π-electron content (EC) of the six-membered rings.
SLAVKO RADENKOVIĆ +2 more
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Effect of a ring on the cyclic conjugation in another ring: applications to acenaphthylene-type polycyclic conjugated molecules [PDF]
Journal of the Serbian Chemical Society, 2010 In a recent work, a method was developed for assessing the influence ief(G, Z0|Z1) of a ring Z1 on the energy effect of another ring Z0 in a polycyclic conjugated molecule G. Herein, a report is given of detailed numerical investigations of ief(G, Z0|Z1)
SLAVKO RADENKOVIĆ +3 more
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Volume independence in large Nc QCD-like gauge theories [PDF]
, 2007 Volume independence in large $\Nc$ gauge theories may be viewed as a generalized orbifold equivalence. The reduction to zero volume (or Eguchi-Kawai reduction) is a special case of this equivalence. So is temperature independence in confining phases.
A. Armoni +17 more
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