1,2-Bis(diphenylphosphino)ethane

1,2-Bis(diphenylphosphino)ethane
Names
	Preferred IUPAC name (Ethane-1,2-diyl)bis(diphenylphosphane)
	Other names 1,2-Bis(diphenylphosphino)ethane; Diphos; Dppe
Identifiers
CAS Number	1663-45-2 ;
3D model (JSmol)	Interactive image; Interactive image;
Beilstein Reference	761261
ChEBI	CHEBI:30669 ;
ChEMBL	ChEMBL68683 ;
ChemSpider	66873 ;
ECHA InfoCard	100.015.246
EC Number	216-769-2;
Gmelin Reference	9052
PubChem CID	74267;
UNII	KL33QE52I4;
CompTox Dashboard (EPA)	DTXSID2061858 ;
	InChI InChI=1S/C26H24P2/c1-5-13-23(14-6-1)27(24-15-7-2-8-16-24)21-22-28(25-17-9-3-10-18-25)26-19-11-4-12-20-26/h1-20H,21-22H2 Key: QFMZQPDHXULLKC-UHFFFAOYSA-N ; InChI=1/C26H24P2/c1-5-13-23(14-6-1)27(24-15-7-2-8-16-24)21-22-28(25-17-9-3-10-18-25)26-19-11-4-12-20-26/h1-20H,21-22H2 Key: QFMZQPDHXULLKC-UHFFFAOYAX;
	SMILES P(c1ccccc1)(c2ccccc2)CCP(c3ccccc3)c4ccccc4; c1ccc(cc1)P(CCP(c2ccccc2)c3ccccc3)c4ccccc4;
Properties
Chemical formula	C26H24P2
Molar mass	398.42 g/mol
Melting point	140 to 142 °C (284 to 288 °F; 413 to 415 K)
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302, H315, H319, H332, H335, H410
Precautionary statements	P261, P264, P270, P271, P273, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P391, P403+P233, P405, P501
	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

1,2-Bis(diphenylphosphino)ethane (dppe) is an organophosphorus compound with the formula (Ph₂PCH₂)₂ (Ph = phenyl). It is a common symmetrical bidentate ligand in coordination chemistry. It is a white solid that is soluble in organic solvents.