Cyclooctatetraene.
نویسندگان
چکیده
منابع مشابه
Bis-cyclooctatetraene tripalladium sandwich complexes.
We report synthesis and structural characterization of bis-cyclooctatetraene trinuclear palladium sandwich complexes. The non-planar cyclooctatetraene ligands flank an isosceles Pd3 triangle, which is supported by one equatorial ligand.
متن کاملLuminescence Quenching of Rhodamines by Cyclooctatetraene
für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...
متن کاملRole of bifurcation in the bond shifting of cyclooctatetraene
The present study of the cyclooctatetraene potential energy surface shows the presence of a bifurcation (valley ridge inflection point) in the intrinsic reaction coordinate path between the two transition states of D(8h) and D(4h) symmetries. This result is of capital importance for the correct understanding of the bond shifting and ring inversion processes in this compound.
متن کاملFree Cyclooctatetraene Dianion: Planarity, Aromaticity, and Theoretical Challenges.
The planarity and 10 π-electron aromaticity of the free cyclooctatetraene dianion (C8H8 2−, COT2−) have been questioned recently on the basis of conflicting density functional and second-order Møller−Plesset perturbation computations. Rigorous coupled-cluster methods are employed here to establish the structure and properties of COT2−. Like many multiply charged anions, COT2− exists in isolatio...
متن کاملRecent Studies on the Aromaticity and Antiaromaticity of Planar Cyclooctatetraene
Cyclooctatetraene (COT), the first 4nπ-electron system to be studied, adopts an inherently nonplanar tub-shaped geometry of D2d symmetry with alternating single and double bonds, and hence behaves as a nonaromatic polyene rather than an antiaromatic compound. Recently, however, considerable 8π-antiaromatic paratropicity has been shown to be generated in planar COT rings even with the bond alter...
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ژورنال
عنوان ژورنال: Journal of Synthetic Organic Chemistry, Japan
سال: 1967
ISSN: 0037-9980,1883-6526
DOI: 10.5059/yukigoseikyokaishi.25.25