2,2'-Bis(2-indenyl) biphenyl

2,2′-Bis(2-indenyl) biphenyl is an organic compound with the formula [C₆H₄C₉H₇]₂. The compound is the precursor, upon deprotonation, to ansa-metallocene complexes within the area of transition metal indenyl complexes.

2,2′-Bis(2-indenyl) biphenyl

Names
Preferred IUPAC name 2,2′-Di(1H-inden-2-yl)-1,1′-biphenyl
Identifiers
CAS Number	152952-99-3 N
3D model (JSmol)	Interactive image
ChemSpider	9318556 Y
PubChem CID	11143444
CompTox Dashboard (EPA)	DTXSID20456782
InChI InChI=1S/C30H22/c1-2-10-22-18-25(17-21(22)9-1)27-13-5-7-15-29(27)30-16-8-6-14-28(30)26-19-23-11-3-4-12-24(23)20-26/h1-17,19H,18,20H2 Y Key: DGTWDUGCMACYFO-UHFFFAOYSA-N Y InChI=1/C30H22/c1-2-10-22-18-25(17-21(22)9-1)27-13-5-7-15-29(27)30-16-8-6-14-28(30)26-19-23-11-3-4-12-24(23)20-26/h1-17,19H,18,20H2 Key: DGTWDUGCMACYFO-UHFFFAOYAR
SMILES C1(C2=C(C3=CC(C=CC=C5)=C5C3)C=CC=C2)=C(C4=CC(C=CC=C6)=C6C4)C=CC=C1
Properties
Chemical formula	C30H22
Molar mass	382.506 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Metals studied with 2,2′-bis(2-indenyl) biphenyl include titanium, zirconium, and hafnium.^{[citation needed]} The ligand and its complexes have been prepared by the research group of the late Brice Bosnich at The University of Chicago.^[1] Zirconium and hafnium complexes made from this ligand were found to be active catalysts for the polymerization of the smallest alkenes – compounds with carbon-carbon double bonds—namely, ethylene and propylene.^{[citation needed]} The use of such complexes in the polymerization of alkenes has since been reported, and patented by DSM Research.^[2][3]