25777-46-2

Basic information

• Product Name: {Rh(P(OC₂H₅)3)4}⁽¹⁺⁾*B(C₆H₅)4^(1-)={Rh(P(OC₂H₅)3)4}B(C₆H₅)4
• CAS NO: 25777-46-2
• Molecular Weight: 1086.77
• Mol File: 25777-46-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: {Rh(P(OC₂H₅)3)4}⁽¹⁺⁾*B(C₆H₅)4^(1-)={Rh(P(OC₂H₅)3)4}B(C₆H₅)4(CAS DataBase Reference)
• NIST Chemistry Reference: {Rh(P(OC₂H₅)3)4}⁽¹⁺⁾*B(C₆H₅)4^(1-)={Rh(P(OC₂H₅)3)4}B(C₆H₅)4(25777-46-2)
• EPA Substance Registry System: {Rh(P(OC₂H₅)3)4}⁽¹⁺⁾*B(C₆H₅)4^(1-)={Rh(P(OC₂H₅)3)4}B(C₆H₅)4(25777-46-2)

Safety Data

• Hazardous Substances Data: 25777-46-2(Hazardous Substances Data)

Upstream product

• 12092-47-6 di-μ-chloro-bis(1,5-cyclooctadiene)dirhodium 
• 143-66-8 sodium tetraphenyl borate 
• 122-52-1 triethyl phosphite 

Relevant articles and documents

Cationic complexes of rhodium(I) and their reactivity toward air

The reaction of [C8H12RhCl]2 with an excess of the ligands L = P(O-i-C3H7)3, P(OCH3)2C6H5, POCH3(C6H5)2, P(CH3)2C6H5, and PCH3(C6H5)2 in methanol at room temperature or under refluxing conditions gives the four-coordinate cations RhL4+ whereas the corresponding reaction involving the ligands L = P(OR)3 (R = CH3, C2H5, i-C4H9, and n-C4H9) and P(OCH2)3CCH3 yields the five-coordinate species RhL5+. However, by employing a rhodium:ligand ratio of 1:4 in those reactions involving the ligands P(OR)3 (R = CH3 and C2H5) the four-coordinate cations Rh[P(OR)3]4+ are obtained. Further the reaction of [C8H12RhCl]2 with excess of the ligands L = P(CH3)2C6H5 and As(CH3)2C6H5 in methanol in the presence of air affords the stable oxygen-containing cations RhL4O2+. The cations RhL4+, RhL5+, and RhL4O2+ were characterized as the tetraphenylborates hexafluorophosphates, or perchlorates. The ionic compounds {Rh[P(OR)3]4}B(C6H5)4 (R = CH3, C2H5 and i-C3H7) and {Rh[P(OR)3]5}B(C6H5)4 (R = CH3, C2H5, i-C4H9, and n-C4H9) decompose in air to form the neutral derivatives Rh[P(OR)3]2B(C6H5)4 containing one of the phenyl rings of the B(C6H5)4 group bonded as an arene to the rhodium atom. The bonded B(C6H5)4 group in Rh [P(OCH3)3]2B(C6H5) 4 is readily displaced by trimethyl phosphite and by the ligand (C6H5)2PC2H4P(C 6H5)2 to give the products {Rh[P(OCH3)3]5}B(C6H 5)4 and {Rh[(C6H5)2PC2H4P(C 6H5)2]2}B(C6H 5)4, respectively. The compound {Rh[P(OCH3)3]5}PF6 reacts with the dienes cycloocta-1,5-diene and bicyclo[2.2.1]hepta-2,5-diene in the presence of air to give the ionic derivatives {Rh(C8H12)[P(OCH3)3] 2}PF6 and {Rh(C7H8)[P(OCH3)3] 3}PF6, respectively. The nmr spectra of the various compounds are discussed.