Cyclopentadienyl radical

Cyclopentadienyl radical
Names
	Systematic IUPAC name Cyclopenta-2,4-dien-1-yl
Identifiers
CAS Number	2143-53-5;
3D model (JSmol)	Interactive image; Interactive image;
Beilstein Reference	2070324
ChEBI	CHEBI:36769;
ChemSpider	121110 ;
Gmelin Reference	323080
PubChem CID	137443;
CompTox Dashboard (EPA)	DTXSID00175702 ;
	InChI InChI=1S/C5H5/c1-2-4-5-3-1/h1-5H Key: HPYIUKIBUJFXII-UHFFFAOYSA-N ;
	SMILES c1cccc1; [CH]1C=CC=C1;
Properties
Chemical formula	C5H5
Molar mass	65.095 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Cyclopentadienyl is an organic compound with the chemical formula C
₅H
₅ (also written [C
₅H
₅]). Formally speaking, it is a highly reactive radical that is the oxidized derivative of the cyclopentadienyl anion. Cyclopentadienyl radical adopts an approximately pentagonal planar ring. In organometallic chemistry, cyclopentadienyl complexes contain the C₅H₅^-.^[2]

References

^ "cyclopentadienyl (CHEBI:36769)". Chemical Entities of Biological interest (ChEBI). UK: European Bioinformatics Instititute.
^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.