1,1'-Binaphthyl

1,1'-Binaphthyl
Names
	IUPAC name 1-Naphthalen-1-ylnaphthalene
	Other names 1,1'-Binaphthalene
Identifiers
CAS Number	604-53-5;
3D model (JSmol)	Interactive image;
PubChem CID	11789;
UNII	T87T28S609;
	SMILES C1=CC=C2C(=C1)C=CC=C2C3=CC=CC4=CC=CC=C43;
Properties
Chemical formula	C20H14
Molar mass	254.332 g·mol−1
Appearance	Colorless solid
Density	1.299 g/cm3
Melting point	160 °C (320 °F; 433 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

1,1'-Binaphthyl is an organic compound with the formula (C₁₀H₇)₂. It is one of the dimers of naphthalene (or literally: dimers of naphthyl). A colorless solid, it has attracted some attention because the atropisomers can be isolated due in part to hindered rotation between the two naphthyl subunits. The halflife of the racemization is 14.5 min. at 50 °C. Substituted derivatives of this parent species, e.g. binaphthol, exhibit much higher barriers to racemization.[1]

References

Pu, Lin (1998). "1,1'-Binaphthyl Dimers, Oligomers, and Polymers: Molecular Recognition, Asymmetric Catalysis, and New Materials". Chemical Reviews. 98: 2405–2494. doi:10.1021/cr970463w. PMID 11848968.

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[1] Pu, Lin (1998). "1,1'-Binaphthyl Dimers, Oligomers, and Polymers: Molecular Recognition, Asymmetric Catalysis, and New Materials". Chemical Reviews. 98: 2405–2494. doi:10.1021/cr970463w. PMID 11848968.