446875-38-3

Basic information

• Product Name: (η1:η6:η1-1,4-bis[4-(diphenylphosphino)butyl]-2,3,5,6-tetramethylbenzene)rhodium(I) hexafluorophosphate
• Synonyms: (η1:η6:η1-1,4-bis[4-(diphenylphosphino)butyl]-2,3,5,6-tetramethylbenzene)rhodium(I) hexafluorophosphate
• CAS NO: 446875-38-3
• Molecular Weight: 862.66
• Mol File: 446875-38-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (η1:η6:η1-1,4-bis[4-(diphenylphosphino)butyl]-2,3,5,6-tetramethylbenzene)rhodium(I) hexafluorophosphate(CAS DataBase Reference)
• NIST Chemistry Reference: (η1:η6:η1-1,4-bis[4-(diphenylphosphino)butyl]-2,3,5,6-tetramethylbenzene)rhodium(I) hexafluorophosphate(446875-38-3)
• EPA Substance Registry System: (η1:η6:η1-1,4-bis[4-(diphenylphosphino)butyl]-2,3,5,6-tetramethylbenzene)rhodium(I) hexafluorophosphate(446875-38-3)

Safety Data

• Hazardous Substances Data: 446875-38-3(Hazardous Substances Data)

Upstream product

• 26042-63-7 silver(I) hexafluorophosphate 
• 446875-39-4 1,4-bis[4-(diphenylphosphino)butyl]-2,3,5,6-tetramethylbenzene 

Downstream Products

• 7440-22-4 silver 
• 531522-60-8 trans-monocarbonyl(acetonitrile)(η1:η1-1,4-bis[4-(diphenylphosphino)butyl]-2,3,5,6-tetramethylbenzene)rhodium(I) hexafluorophosphate 
• 531522-56-2 tricarbonyl(η1:η1-1,4-bis[4-(diphenylphosphino)butyl]-2,3,5,6-tetramethylbenzene)rhodium(I) hexafluorophosphate 
• 531522-64-2 trans-dicarbonyl(η1:η1-1,4-bis[4-(diphenylphosphino)butyl]-2,3,5,6-tetramethylbenzene)rhodium(I) hexafluorophosphate 
• 531522-58-4 trans-bis(tert-butyl isocyanide)(η1:η1-1,4-bis[4-(diphenylphosphino)butyl]-2,3,5,6-tetramethylbenzene)rhodium(I) hexafluorophosphate 

Relevant articles and documents

Rh(II) and Rh(I) two-legged piano-stool complexes: Structure, reactivity, and electronic properties

The ligand 1,4-bis[4-(diphenylphosphino)butyl]-2,3,5,6-tetramethylbenzene, 3, was used to synthesize a mononuclear Rh(II) complex [(η1:η6:η1-1,4-bis[4- (diphenylphosphino)butyl]-2,3,5,6-tetramethylbenzene)Rh] [PF6]2, 6+, in a two-legged piano-stool geometry. The structural and electronic properties of this novel complex including a single-crystal EPR analysis are reported. The complex can be cleanly interconverted with its Rh(I) form, allowing for a comparison of the structural properties and reactivity of both oxidation states. The Rh(I) form 6 reacts with CO, tert-butyl isocyanide, and acetonitrile to form a series of 15-membered mononuclear cyclophanes [(η1:η1-1,4-bis[4- (diphenylphosphino)butyl]-2,3,5,6-tetramethylbenzene)Rh(CO)3][PF6] (8), [(η1:η1-1,4-bis[4-(diphenylphosphino)butyl]-2, 3,5,6-tetramethylbenzene)Rh(CNC(CH3)3)2] [PF6] (10), and [η1:η1-1,4-bis[4-(diphenylphosphino)butyl]-2, 3,5,6tetramethylbenzene)Rh(CO)(CH3CN)][PF6] (11). The Rh(II) complex 6+ reacts with the same small molecules, but over shorter periods of time, to form the same Rh(I) products. In addition, a model two-legged piano-stool complex [(η1:η6:η1-1,4-bis[3- (diphenylphosphino)propoxy] -2,3,5,6-tetramethyl benzene) Rh][B(C6F5)4], 5, has been synthesized and characterized for comparison purposes. The solid-state structures of complexes 5, 6, 6+, and 11 are reported. Structure data for 5: triclinic; P1-; a = 10.1587(7) A; b = 11.5228(8) A; c = 17.2381(12) A; α = 96.4379(13)°; β = 91.1870(12)°; γ = 106.1470(13)°; Z= 2. 6: triclinic; P1- a = 11.1934(5) A; b = 12.4807(6) A; c = 16.1771(7) A; α = 81.935(7)°; β = 89.943(1)°; γ = 78.292(1)°; γ = 78.292(1)°; Z = 2. 6+: monoclinic; P2(1)/n; a = 11.9371(18) A; b = 32.401(5) A; c = 12.782(2) A; β = 102.890(3)°; Z = 4. 11: triclinic; P1-; a = 13.5476(7) A; b = 13.8306(7) A; c = 14.9948(8) A; α = 74.551(1)°; β = 73.895(1)°; γ = 66.046(1)°; Z = 2.