non-Kekulé molecule is a conjugated hydrocarbon that cannot be assigned a classical Kekulé structure[definition needed]. Since non-Kekulé molecules have...

particular the Kekulé structure of benzene. Kekulé never used his first given name; he was known throughout his life as August Kekulé. He did however...

Kekulé may refer to: August Kekulé (1829–1896), later August Kekule von Stradonitz, German organic chemist Non-Kekulé molecule Alexander Kekulé, a German...

A notable molecule editor is a computer program for creating and modifying representations of chemical structures. Molecule editors can manipulate chemical...

diradicals are extremely reactive and non-Kekulé molecules that are rarely isolated. Diradicals are even-electron molecules but have one fewer bond than the...

alternating single and double bonds (cyclohexatriene), was developed by Kekulé (see History section below). Each bond may be seen as a hybrid of a single...

recognised as an aromatic molecule by Dewar in 1945. In 1936, Hückel developed the theory of π-conjugated biradicals (non-Kekulé molecules). The first example...

(lowering of the energy) of the molecule. In benzene the two cyclohexatriene Kekulé structures, first proposed by Kekulé, are taken together as contributing...

elements" (1857–58), Friedrich August Kekulé was the first to offer a theory of how every atom in an organic molecule was bonded to every other atom. He...

their valence electrons. Hence they are sometimes termed Kekulé structures or Lewis–Kekulé structures. Skeletal formulae have become ubiquitous in organic...

p-orbitals with delocalized electrons in a molecule, which in general lowers the overall energy of the molecule and increases stability. It is conventionally...

with temperature-independent NMR resonances, so can be considered a non-Kekulé molecule. The species by Villinger can undergo reaction with phosphaalkyne...

nature was first recognized independently by Joseph Loschmidt and August Kekulé in the 19th century. Each carbon atom in the hexagonal cycle has four electrons...

2015-06-27. On p. 100, Kekulé suggests that the carbon atoms of benzene could form a "chaîne fermée" (closed chain). Aug. Kekulé (1872), "Ueber einige...

in π-conjugated non-Kekulé molecules Journal of Molecular Structure: Theochem. Lu HSM, Berson JA. Catenation of heterocyclic non-Kekule biradicals to tetraradical...

chemical structure, developed independently in 1858 by both Friedrich August Kekulé and Archibald Scott Couper. Both researchers suggested that tetravalent...

methods confirm this assignment. Conversely, meta-xylylene is a non-Kekulé molecule that has a triplet ground-state. H. E. Winberg, F. S. Fawcett "[2...

A chemical bond is the association of atoms or ions to form molecules, crystals, and other structures. The bond may result from the electrostatic force...

N-Phenyltriazatrimethylenemethane Triplet Diradicals and a Perimidine- Derived Non-Kekulé Molecule by Photolysis of 5-Imino-4,5-dihydro-1H-tetrazoles.” H. Quast, W...

when the molecule is formed. In organic chemistry convention, formal charges are an essential feature of a correctly rendered Lewis–Kekulé structure...

agriculture. The term terpene was coined in 1866 by the German chemist August Kekulé to denote all hydrocarbons having the empirical formula C10H16, of which...

benzene, until the correct structure was described by Friedrich August Kekulé. Likewise, the idea of stereoisomerism – that atoms have rigid three-dimensional...

activity in terms of the tetrahedral arrangement of the atoms bound to carbon. Kekulé explored tetrahedral models earlier, in 1862, but never published his work;...

in honor of August Kekulé, the discoverer of the structure of the benzene molecule. The nature of the π bonding within the molecule was long debated, as...

properties of molecules as due to spin coupling of the π orbitals. This is essentially still the old idea of resonance between Friedrich August Kekulé von Stradonitz...

alternating single and double bonds (cyclohexatriene), was developed by August Kekulé (see History section below). The model for benzene consists of two resonance...

1838, which has prevailed in the chemical literature. Friedrich August Kekulé proposed the term dextrose (from the Latin dexter, meaning "right"), because...

that the particle size is preserved. Ligands are usually some organic molecules and they are bound to metallic core via some linking atoms such as sulfur...

notation for more complex organic molecules. In this type of diagram, first used by the organic chemist Friedrich August Kekulé von Stradonitz, the carbon atoms...

π-delocalized molecules, such as ethylene, benzene, butadiene, and pyridine. It provides the theoretical basis for Hückel's rule that cyclic, planar molecules or...