Fulvene

Fulvene
Names
	Preferred IUPAC name 5-Methylidenecyclopenta-1,3-diene
	Other names Fulvene; 5-Methylene-1,3-cyclopentadiene
Identifiers
CAS Number	497-20-1 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:51999 ;
ChemSpider	120097 ;
PubChem CID	136323;
UNII	19W699IKIE ;
CompTox Dashboard (EPA)	DTXSID30897602 ;
	InChI InChI=1S/C6H6/c1-6-4-2-3-5-6/h2-5H,1H2 Key: PGTKVMVZBBZCKQ-UHFFFAOYSA-N ; InChI=1/C6H6/c1-6-4-2-3-5-6/h2-5H,1H2 Key: PGTKVMVZBBZCKQ-UHFFFAOYAV;
	SMILES C=C1\C=C/C=C1;
Properties
Chemical formula	C6H6
Molar mass	78.114 g·mol−1
Magnetic susceptibility (χ)	-42.9·10−6 cm3/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Fulvene (pentafulvene) is a hydrocarbon with the formula (CH=CH)₂C=CH₂. It is a prototype of a cross-conjugated hydrocarbon. Fulvene is rarely encountered, but substituted derivatives (fulvenes) are numerous. They are mainly of interest as ligands and precursors to ligands in organometallic chemistry.

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