28240-69-9

Basic information

• Product Name: 1,2-BIS(DICHLOROPHOSPHINO)ETHANE
• Synonyms: 1,2-BIS(DICHLOROPHOSPHINO)ETHANE;1,2-Bis(dichlorophosphino)ethane,min.97%;1,2-BIS(DICHLOROPHOSPHINO)ETHANE, MIN. 97%;1,2-Bis(dichlorophosphino)ethane, 97+%;Ethylenebis(dichlorophosphine);1,2-Bis(dichlorophosphino)ethane 97%;1,2-Ethanediylbis[phosphonous dichloride];P,P′-(1,2-Ethanediyl)bis(dichlorophosphane)
• CAS NO: 28240-69-9
• Molecular Formula: C₂H₄Cl₄P₂
• Molecular Weight: 231.81
• Product Categories: Ligand;Catalysis and Inorganic Chemistry;Phosphorus Compounds;Polydentate Phosphine Ligands;organophosphine halide
• Mol File: 28240-69-9.mol
• Article Data: 8

Chemical Properties

• Boiling Point: 70 °C1 mm Hg(lit.)
• Flash Point: 70°C/1mm
• Appearance: colorless to pale yellow/liquid
• Density: 1.536 g/mL at 25 °C(lit.)
• Vapor Pressure: 0.0363mmHg at 25°C
• Refractive Index: n20/D 1.588(lit.)
• Sensitive: Moisture Sensitive
• CAS DataBase Reference: 1,2-BIS(DICHLOROPHOSPHINO)ETHANE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2-BIS(DICHLOROPHOSPHINO)ETHANE(28240-69-9)
• EPA Substance Registry System: 1,2-BIS(DICHLOROPHOSPHINO)ETHANE(28240-69-9)

Safety Data

• Hazard Codes: C
• Statements: 34
• Safety Statements: 26-27-28-36/37/39-45
• RIDADR: UN 3265 8/PG 2
• WGK Germany: 3
• TSCA: Yes
• HazardClass: 8
• PackingGroup: II
• Hazardous Substances Data: 28240-69-9(Hazardous Substances Data)

Usage

Chemical Properties

Colorless to light yellow liqui

InChI:InChI=1/C2H4Cl4P2/c3-7(4)1-2-8(5)6/h1-2H2

Upstream product

• 74-85-1 ethene 
• 5518-62-7 1,2-diphosphinoethane 

Downstream Products

• 4141-59-7 1,2-bis(di-n-butylphosphino)-ethane 
• 98815-26-0 1,2-bisethane 
• 76858-94-1 1,2-bis(di(pentafluorophenyl)phosphino)ethane 
• 85599-21-9 1,2-Ethanediylbis 
• 98815-27-1 1,2-bisethane 
• 98815-25-9 1,2-bisethane 
• 99346-83-5 1,2-bis(bis(2-methylthiophenyl)phosphino)ethane 
• 87532-69-2 1,1'-(1,2-ethanediyl)bis[1,1-bis(1-methylethyl)phosphine] 
• 6411-21-8 depe 
• 4141-59-7 1,2-bis(di-tert-butyl)phosphinoethane 
• 79497-89-5 ethylenediphosphinetetraacetic acid 
• 109907-13-3 1,2-bis(2,4,6-tri-tert-butylphenylchlorophosphano)ethane 
• 131482-00-3 (-)-1,2-Bis(dimenthylphosphino)ethan 
• 110391-36-1 (C₆⁽²⁾H₅)2PC₂H₄P(C₆⁽²⁾H₅)2 

Relevant articles and documents

Novel multitopic diphos-type ligands

Seven novel imidazole and thiazole derivatives of diphos-type ligands are presented. They are of the general structure R2P(CH2) 2PR2, where R is imidazol-2-yl (1), 1-methylimidazol-2-yl (2), 1-methylbenzimidazol-2-yl (3), 1-methylimidazol-5-yl (4), 2-isopropylimidazol-4(5)-yl (5), thiazol-2-yl (6), benzothiazol-2-yl (7), thiazol-4-yl (8) or thiazol-5-yl (9). Syntheses involved direct metallation or halogen-metal exchange reactions. Their solubility, especially in aqueous solution, is strongly dependent on the nature of the substituents as is their partition coefficient log D. The crystal structures of compounds 2, 3, 7a and 9 as well as the structure of the rhodium complex [(2)2Rh 2Cl2]Cl2 (10) have been determined.

SYNTHESIS, CRYSTAL STRUCTURES AND SOME REACTIONS OF ZEROVALENT TRIS DERIVATIVES OF CHROMIUM, MOLYBDENUM, TUNGSTEN, VANADIUM, NIOBIUM AND TANTALUM

Co-condensation of the vapours of the metals M = Cr, Mo, W, V, Nb, Ta with an excess of bis-1,2-(dimethylphosphino)ethane (dmpe) gives the neutral, zerovalent compounds M(dmpe)3.X-ray structure analysis shows that the crystals are isomorphous (cubic, space group Im3m, a 10.922(3), 11.058(5), 11.040(5), 11.041(3), 11.194(4) and 11.164(3) Angstroem respectively) and contain isolated molecules which have an essentially octahedral distribution of the six phosphorus atoms about the metal centre.The compound Cr(dmpe)3 reacts with methyl iodide giving trans-CrI2(dmpe)2.Mo(dmpe)3 reacts with hydrochloric acid forming the dihydrido derivative isolated as the hexafluorophosphate salt 2.Mo(dmpe)3 also reacts with iodine or methyl iodide forming the paramagnetic cation + which was isolated as the hexafluorophosphate salt.

Polymer-supported phosphorus ligands for catalysts

Novel phosphine and phosphine oxide ligands are prepared using polymeric supports. These compounds can be easily cleaved from the support, and along with the corresponding supported compounds, used as ligands in the preparation of novel, metal-complexed catalysts.