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Experimental Determination of the Antiaromaticity of Cyclobutadiene
Science, 1999Photoacoustic calorimetry was used to quantify the antiaromaticity of 1,3-cyclobutadiene (CBD) by measuring the heat release accompanying its formation via photofragmentation of a polycyclic precursor. In combination with quantum yield measurements and thermochemical calculations, this measurement provides an enthalpy of formation for CBD of 114 ± 11 ...
, Deniz, , Peters, , Snyder
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The antiaromaticity of cyclobutadiene
Tetrahedron, 1976Abstract The antiaromaticity of cyclobutadiene systems is explored by means of theoretical studies on quinone electrochemical oxidation reactions.
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The aromaticity and antiaromaticity of dehydroannulenes
Physical Chemistry Chemical Physics, 2001The molecular structures and the magnetic properties of hexadehydro[12]annulenes and dodecadehydro[18]annulenes have been studied at ab initio and density-functional levels. The calculations show that the unsubstituted dehydro[12]annulene sustains a paratropic ring current in an external magnetic field, while the ring current for the unsubstituted ...
Jonas Juse´lius, Dage Sundholm
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Angewandte Chemie International Edition in English, 1968
AbstractAccording to quantum mechanical calculations, systems with 4n π electrons ought to have anti‐aromatic character, i.e. be destabilized by resonance. This prediction is examined for the case of cyclopropenyl anion, the simplest system having 4n π electrons (n = 1).
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AbstractAccording to quantum mechanical calculations, systems with 4n π electrons ought to have anti‐aromatic character, i.e. be destabilized by resonance. This prediction is examined for the case of cyclopropenyl anion, the simplest system having 4n π electrons (n = 1).
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Photochemistry Driven by Excited‐State Aromaticity Gain or Antiaromaticity Relief
Chemistry - A European Journal, 2023Henrik Ottosson +2 more
exaly
The antiaromaticity of cyclobutadiene
Tetrahedron Letters, 1972B.Andes Hess, L.J. Schaad
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Visualisation of Chemical Shielding Tensors (VIST) to Elucidate Aromaticity and Antiaromaticity**
European Journal of Organic Chemistry, 2021Florian Glöcklhofer, Felix Plasser
exaly
Antiaromatic compounds: a brief history, applications, and the many ways they escape antiaromaticity
2021Lucas José Karas, Judy I-Chia Wu
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