Results 161 to 170 of about 5,564 (213)
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Polycyclic Aromatic Compounds, 2000
A test is made of the concept of isoresonance, wherein two species are so related if each have like numbers of the same (type of) bonds and there is suitable isomorphisam between supreposition of pairs of Kekule structures. The test is primary via computations using a few different semiempirical quantum-chemical models on 48 benzenoid structures with ...
Douglas J Klein
exaly +4 more sources
A test is made of the concept of isoresonance, wherein two species are so related if each have like numbers of the same (type of) bonds and there is suitable isomorphisam between supreposition of pairs of Kekule structures. The test is primary via computations using a few different semiempirical quantum-chemical models on 48 benzenoid structures with ...
Douglas J Klein
exaly +4 more sources
Clar Theory for Radical Benzenoids
Journal of Chemical Information and Modeling, 2009Eric Clar's ideas concerning "aromatic sextets" are extended from closed-shell benzenoids to the case of radical benzenoids, particularly those where the unpaired electrons are largely localized on sites of one "type" (starred or unstarred). A quantitative format in terms of a new Clar polynomial is introduced to make quantitative correlations with a ...
Anirban Misra
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Topics in Current Chemistry, 2017
Reactivity and physical properties of π-conjugated hydrocarbon systems depend predominantly on the topology of π-electrons array. Quinoidal conjugations serve as giving diradical character to molecules, leading to unique chemical behaviors. The simplest member of quinodimethanes are o-, m-, and p-quinodimethanes, which are very reactive due to ...
Akihito Konishi, Takashi Kubo
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Reactivity and physical properties of π-conjugated hydrocarbon systems depend predominantly on the topology of π-electrons array. Quinoidal conjugations serve as giving diradical character to molecules, leading to unique chemical behaviors. The simplest member of quinodimethanes are o-, m-, and p-quinodimethanes, which are very reactive due to ...
Akihito Konishi, Takashi Kubo
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Extremal Catacondensed Benzenoids
Journal of Mathematical Chemistry, 2003zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhang, Lian-Zhu, Tian, Feng
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Journal of Mathematical Chemistry, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yang,WL, Zhang,FJ, Klein,DJ
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yang,WL, Zhang,FJ, Klein,DJ
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Journal of Mathematical Chemistry, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Graver, Jack E., Hartung, Elizabeth J.
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Graver, Jack E., Hartung, Elizabeth J.
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Growth in Catacondensed Benzenoid Graphs
Journal of Chemical Information and Modeling, 2007AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Primoz, Luksic, Tomaz, Pisanski
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Forcing polynomials of benzenoid parallelogram and its related benzenoids
Applied Mathematics and Computation, 2016zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shuang Zhao, Heping Zhang
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