標(biāo)題: Titlebook: Advances in the Theory of Benzenoid Hydrocarbons; Ivan Gutman,Sven J. Cyvin Conference proceedings 1990 Springer-Verlag Berlin Heidelberg [打印本頁] 作者: Harding 時(shí)間: 2025-3-21 16:10
書目名稱Advances in the Theory of Benzenoid Hydrocarbons影響因子(影響力)
書目名稱Advances in the Theory of Benzenoid Hydrocarbons影響因子(影響力)學(xué)科排名
書目名稱Advances in the Theory of Benzenoid Hydrocarbons網(wǎng)絡(luò)公開度
書目名稱Advances in the Theory of Benzenoid Hydrocarbons網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Advances in the Theory of Benzenoid Hydrocarbons被引頻次
書目名稱Advances in the Theory of Benzenoid Hydrocarbons被引頻次學(xué)科排名
書目名稱Advances in the Theory of Benzenoid Hydrocarbons年度引用
書目名稱Advances in the Theory of Benzenoid Hydrocarbons年度引用學(xué)科排名
書目名稱Advances in the Theory of Benzenoid Hydrocarbons讀者反饋
書目名稱Advances in the Theory of Benzenoid Hydrocarbons讀者反饋學(xué)科排名
作者: perimenopause 時(shí)間: 2025-3-21 20:32 作者: COMA 時(shí)間: 2025-3-22 04:23
Immunology of Kidney Transplantation,elopments in the field of reactivity indices for polynuclear benzenoid hydrocarbons are reviewed. Reaction mechanisms and correlations of reactivity indices with rates of electrophilic substitution and Diels-Alder reactions, thermally induced polymerization, and biochemical transformations of benzenoid hydrocarbons are discussed.作者: Harridan 時(shí)間: 2025-3-22 05:38 作者: 無力更進(jìn) 時(shí)間: 2025-3-22 11:42
https://doi.org/10.1057/9780230358911dimers X. (e.g. H.), while X. may be stable if the X. bond is weak (e.g. Li.). According to this theory, the π systems of aromatic hydrocarbons are expected to be unstable in a regular geometry and to be more stable in an alternated one. To verify this prediction, the driving force responsible for t作者: 離開 時(shí)間: 2025-3-22 16:15
Kant on Receptivity and Representationnon-orthogonal, singly-occupied orbitals. The characteristic properties of molecules such as benzene or naphthalene arise from a profoundly quantum mechanical phenomenon, namely the mode of coupling of the electron spins, rather than from any supposed delocalization of the orbitals. Other systems co作者: superfluous 時(shí)間: 2025-3-22 19:33
https://doi.org/10.1057/9780230358911al-bonding theories. Here there is revealed a systematic organization for valence-bond views to describe such π-bonding. With an initiation near the ab initio realm a sequence of semiempirical valence-bond models is identified and characterized. The refinement from one model to the next proceeds via作者: creditor 時(shí)間: 2025-3-22 23:26 作者: Hyperplasia 時(shí)間: 2025-3-23 02:01
Immunology of Kidney Transplantation,elopments in the field of reactivity indices for polynuclear benzenoid hydrocarbons are reviewed. Reaction mechanisms and correlations of reactivity indices with rates of electrophilic substitution and Diels-Alder reactions, thermally induced polymerization, and biochemical transformations of benzen作者: Detoxification 時(shí)間: 2025-3-23 07:38 作者: collateral 時(shí)間: 2025-3-23 11:20 作者: Ascendancy 時(shí)間: 2025-3-23 17:43 作者: nutrients 時(shí)間: 2025-3-23 19:19
Andrea Morán Ferrés,Miguel Fernández Labayenis method has been greatly developed and has become one of the important approaches for investigating Kekulé structures of benzenoid hydrocarbons. The superiority of this method is its simplicity and visualization. According to the properties of the P-V path, some algorithmic approaches have been de作者: Merited 時(shí)間: 2025-3-23 23:47 作者: 舊石器時(shí)代 時(shí)間: 2025-3-24 06:26
Larraín’s ,: A Tale of Neoliberalism by several methods. The oblate rectangles, R.(., .), with fixed values of . are treated most extensively and used to exemplify different procedures based on the method of fragmentation (chopping, summation), a fully computerized method (fitting of polynominal coefficients), application of the John-作者: falsehood 時(shí)間: 2025-3-24 08:39
Andrea Morán Ferrés,Miguel Fernández Labayenarious techniques and concepts of the graph theory are useful for realizing and formulating not only this purely empirical theory but also the mathematical beauty of the structural formula of aromatic hydrocarbons. It is proposed that the sextet polynomial ..(.) be defined in terms of the resonant s作者: Trigger-Point 時(shí)間: 2025-3-24 11:52 作者: Flatter 時(shí)間: 2025-3-24 18:30
Molecular topology and chemical reactivity of polynuclear benzenoid hydrocarbons,elopments in the field of reactivity indices for polynuclear benzenoid hydrocarbons are reviewed. Reaction mechanisms and correlations of reactivity indices with rates of electrophilic substitution and Diels-Alder reactions, thermally induced polymerization, and biochemical transformations of benzenoid hydrocarbons are discussed.作者: 極力證明 時(shí)間: 2025-3-24 19:47 作者: 發(fā)源 時(shí)間: 2025-3-24 23:25
https://doi.org/10.1007/3-540-51505-4Benzoid; Graphentheorie; Kekule-Struktur; Kohlenwasserstoff; graph theory; complexity作者: Corroborate 時(shí)間: 2025-3-25 06:05 作者: reception 時(shí)間: 2025-3-25 09:02
Benzenoid hydrocarbons in space: The evidence and implications,all other known polyatomic, interstellar molecules, they possess great potential as important probes of conditions in many different kinds of astronomical objects. Conversely, astronomical observations are extending our knowledge of these exotic materials by probing regions in which some conditions 作者: BRIEF 時(shí)間: 2025-3-25 13:03
,The distortive tendencies of delocalized π electronic systems. Benzene, cyclobutadiene and related the strength of the 2e-π bond, as predicted by the Valence Bond model. Thus, the π system is forced by the σ framework to adopt a regular geometry rather than an alternated one of Kekulé type. The quantum mechanical resonance energy (QMRE), stabilization directly due to the mixing of Kekulé structu作者: periodontitis 時(shí)間: 2025-3-25 16:56 作者: Sciatica 時(shí)間: 2025-3-25 23:32 作者: pineal-gland 時(shí)間: 2025-3-26 01:30
https://doi.org/10.1057/9780230358911all other known polyatomic, interstellar molecules, they possess great potential as important probes of conditions in many different kinds of astronomical objects. Conversely, astronomical observations are extending our knowledge of these exotic materials by probing regions in which some conditions 作者: 逃避責(zé)任 時(shí)間: 2025-3-26 06:07 作者: 不適當(dāng) 時(shí)間: 2025-3-26 10:49 作者: 犬儒主義者 時(shí)間: 2025-3-26 13:24 作者: Mawkish 時(shí)間: 2025-3-26 18:22
Benzenoid hydrocarbons in space: The evidence and implications,xcited benzenoid hydrocarbons referred to as polycyclic aromatic hydrocarbons (PAHs). The most intense emitters contain between 20 to 50 carbon atoms, although larger species also contribute to the emission. This assignment is based on a rough resemblance of the interstellar emission spectra to the 作者: extinct 時(shí)間: 2025-3-26 23:13
,The distortive tendencies of delocalized π electronic systems. Benzene, cyclobutadiene and related dimers X. (e.g. H.), while X. may be stable if the X. bond is weak (e.g. Li.). According to this theory, the π systems of aromatic hydrocarbons are expected to be unstable in a regular geometry and to be more stable in an alternated one. To verify this prediction, the driving force responsible for t作者: 清楚 時(shí)間: 2025-3-27 04:34
The spin-coupled valence bond description of benzenoid aromatic molecules,non-orthogonal, singly-occupied orbitals. The characteristic properties of molecules such as benzene or naphthalene arise from a profoundly quantum mechanical phenomenon, namely the mode of coupling of the electron spins, rather than from any supposed delocalization of the orbitals. Other systems co作者: 使混合 時(shí)間: 2025-3-27 07:11 作者: 昏暗 時(shí)間: 2025-3-27 11:28
Scaling properties of topological invariants, known approximate formulae for the total π-electron energy and the size extensivity of topological invariants are outlined. The scaling properties of the reduced topological invariants are introduced and the accuracy of various scaling functions is assessed. Finally, the stability index of benzenoi作者: Aesthete 時(shí)間: 2025-3-27 14:19
Molecular topology and chemical reactivity of polynuclear benzenoid hydrocarbons,elopments in the field of reactivity indices for polynuclear benzenoid hydrocarbons are reviewed. Reaction mechanisms and correlations of reactivity indices with rates of electrophilic substitution and Diels-Alder reactions, thermally induced polymerization, and biochemical transformations of benzen作者: deface 時(shí)間: 2025-3-27 18:50
A periodic table for benzenoid hydrocarbons,mplished using an aufbau principle. This table complies to a sextet rule analogous to the octet rule for the periodic table of elements, and .. is analogous to the outer-shell electronic configuration and .. is analogous to the principle quantum number associated with the periodic table of elements.作者: Notify 時(shí)間: 2025-3-27 22:21 作者: JAUNT 時(shí)間: 2025-3-28 02:46
,The existence of Kekulé structures in a benzenoid system,dered as one of the most difficult open problems in this theory. Many investigations have been made in order to find necessary and sufficient conditions for the existence of Kekulé structures in a benzenoid system. Some fairly simple conditions which are both necessary and sufficient have been given作者: 食料 時(shí)間: 2025-3-28 09:57
Peak-valley path method on benzenoid and coronoid systems,is method has been greatly developed and has become one of the important approaches for investigating Kekulé structures of benzenoid hydrocarbons. The superiority of this method is its simplicity and visualization. According to the properties of the P-V path, some algorithmic approaches have been de作者: 拋媚眼 時(shí)間: 2025-3-28 11:44 作者: 爭(zhēng)吵 時(shí)間: 2025-3-28 15:19
,Methods of enumerating Kekulé structures, exemplified by applications to rectangle-shaped benzenoid by several methods. The oblate rectangles, R.(., .), with fixed values of . are treated most extensively and used to exemplify different procedures based on the method of fragmentation (chopping, summation), a fully computerized method (fitting of polynominal coefficients), application of the John-作者: Visual-Acuity 時(shí)間: 2025-3-28 18:59 作者: BILK 時(shí)間: 2025-3-29 02:24 作者: 借喻 時(shí)間: 2025-3-29 05:21
https://doi.org/10.1057/9780230358911: either a (perturbative) restriction to a smaller model space or orthogonalization of a suitable natural basis for the model space. The known properties of the models are indicated, and possible methods of solution are mentioned. A great diversity of work is outlined, related, systematized and extended. New research is suggested.作者: 某人 時(shí)間: 2025-3-29 08:20
Andrea Morán Ferrés,Miguel Fernández Labayen in the last few years. In this chapter we review the main results and give a rigorous proof for some necessary and sufficient conditions for the existence of Kekulé structures in a benzenoid system. In addition, by using the above results, a construction method of some concealed non-Kekuléan benzenoid systems is given.作者: 曲解 時(shí)間: 2025-3-29 15:18 作者: Vulvodynia 時(shí)間: 2025-3-29 18:59 作者: CURT 時(shí)間: 2025-3-29 20:31
,The existence of Kekulé structures in a benzenoid system, in the last few years. In this chapter we review the main results and give a rigorous proof for some necessary and sufficient conditions for the existence of Kekulé structures in a benzenoid system. In addition, by using the above results, a construction method of some concealed non-Kekuléan benzenoid systems is given.作者: Ingratiate 時(shí)間: 2025-3-30 01:03
