cyclopentadienyl anion

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cyclopentadienyl anion

[¦sī·klō‚pen·tə‚dī′e·nil ′an‚ī·ən]
(organic chemistry)
C5H5‒ A radical formed from cyclopentadiene.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Piperno, "From cyclopentadiene to isoxazoline-carbocyclic nucleosides: a rapid access to biological molecules through nitrosocarbonyl chemistry," Tetrahedron, vol.
Post-metallocenes, also called "molecular" catalysts," are part-metallocene or non-metallocene like one cyclopentadiene ring and something else or no cyclopentadiene at all.
Moreover, the addition of bromine atoms can significantly improve the EA of V up to 8.8 kcal [mol.sup.-1], depending on the location of the substitution on the cyclopentadiene ring.
The three principal raw-material streams to produce HCR are linear C5s such as piperylene and amylene, cyclic C5s such as cyclopentadiene, and aromatic C9 and C10 fractions, heavy in reactive monomers such as styrene.
An even greater tendency for the incorporation of higher [alpha]-olefins is evident for the syndiospecific catalyst, [Me.sub.2]C(Cp)(Flu)[ZrCl.sub.2] (Cp = cyclopentadiene, Flu = fluorene) in the presence of MAO.
59 and 60) reported that copolymers of isobutylene and cyclopentadiene improved the wet skid resistance of a carbon black-filled SBR/BR tread compound.
for blends of isotactic PP and oligo-(cyclopentadiene), which showed a lower critical solution temperature of 90 [degrees] C (21).
Here, the norbornene endcap is postulated to dissociate to produce cyclopentadiene or cyclopentadienyl segments that recombine with maleimide segments to complete the crosslinking reaction.