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Cyclopentadiene is an organic compound with the formula C 5 H 6. [6] It is often abbreviated CpH because the cyclopentadienyl anion is abbreviated Cp −.. This colorless liquid has a strong and unpleasant odor.
In chemistry, cyclopentadienyl is a radical with the formula C 5 H 5. The related cyclopentadienyl anion (which can formally be converted to the cyclopentadienyl radical by one-electron reduction) is aromatic , and forms salts and coordination compounds .
In chemistry, the cyclopentadienyl anion or cyclopentadienide is an aromatic species with a formula of [C 5 H 5] − and abbreviated as Cp −. [1] It is formed by the deprotonation of cyclopentadiene. The cyclopentadienyl anion is a ligand which binds to a metal in organometallic chemistry. [2]
The cyclopentadienyl cation is another textbook example of an antiaromatic compound. It is conventionally understood to be planar, cyclic, and have 4 π electrons (4n for n=1) in a conjugated system. However, it has long been questioned if the cyclopentadienyl cation is genuinely antiaromatic and recent discoveries have suggested that it may ...
A cyclopentadienyl complex is a coordination complex of a metal and cyclopentadienyl groups (C 5 H − 5, abbreviated as Cp −). Cyclopentadienyl ligands almost invariably bind to metals as a pentahapto (η 5-) bonding mode. The metal–cyclopentadienyl interaction is typically drawn as a single line from the metal center to the center of the ...
Cyclopentadienyl can refer to Cyclopentadienyl anion, ... Cyclopentadienyl cation, [C 5 H 5] + See also. Pentadienyl This page was last edited on 3 July 2021 ...
Looking at the ORTEP diagram of the structure of the cation (at right), it is evident that it possesses the typical geometry expected of a rhodocene or rhodocenium cation. The two cyclopentadienyl rings are close to parallel (the centroid–Rh–centroid angle is 177.2°) and the rhodium centre is slightly closer to the substituted ...
The observed aromaticity for this compound is explained with a so-called annulene-within-an-annulene model.According to this model corannulene is made up of an aromatic 6 electron cyclopentadienyl anion surrounded by an aromatic 14 electron annulenyl cation.