112713-61-8

Basic information

• Product Name: tetracarbonyl{1,2-bis(diphenylphosphino)ethane}chlorotantalum
• Synonyms: tetracarbonyl{1,2-bis(diphenylphosphino)ethane}chlorotantalum
• CAS NO: 112713-61-8
• Molecular Weight: 726.867
• Mol File: 112713-61-8.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: tetracarbonyl{1,2-bis(diphenylphosphino)ethane}chlorotantalum(CAS DataBase Reference)
• NIST Chemistry Reference: tetracarbonyl{1,2-bis(diphenylphosphino)ethane}chlorotantalum(112713-61-8)
• EPA Substance Registry System: tetracarbonyl{1,2-bis(diphenylphosphino)ethane}chlorotantalum(112713-61-8)

Safety Data

• Hazardous Substances Data: 112713-61-8(Hazardous Substances Data)

Upstream product

• 141280-68-4 TaCl(CO)2(1,2-bis(diphenylphosphino)ethane)2 
• 201230-82-2 carbon monoxide 
• 111532-98-0 tetracarbonyl{1,2-bis(diphenylphosphino)ethane}hydridotantalum 
• 15602-40-1 sodium hexacarbonyltantalate*THF 
• 628-13-7 pyridine hydrochloride 

Relevant articles and documents

Three 18-Electron Tantalum(I) Compounds, TaCl(CO)2(dppe)2, [TaCl(CO)2(dppe)2]2x, and TaCl(CO)4(dppe) (dppe = 1,2-Bis(diphenylphosphino)ethane), Which Exhibit Low Levels of Paramagnetism

Reductive carbonylation of TaCl5 in the presence of 1,2-bis(diphenylphosphino)ethane (dppe) under the appropriate conditions results in the formation of TaCl(CO)2(dppe)2 (1), as the major product, and the possibly cyclic oligomer [TaCl(CO)2(dppe)2]2x (2, 2x ≥ 4) as a minor product. Carbonylation of 1 (1 atm) results in the rapid but reversible formation of TaCl(CO)4(dppe) (3). Solutions of all three compounds exhibit low levels of paramagnetism, possibly attributable to thermal population of low-lying triplet excited states. Crystal data for the toluene solvate of 1, C68H64ClO2P4Ta: triclinic, P1? (No. 2), a = 13.937(12) ?, b = 14.811(7) ?, c = 14.929(9) ?, α = 102.30(5)°, β = 95.60(7)°, γ = 98.41(5)°, Z = 2.