189084-79-5

Basic information

• Product Name: Rh(((C₆H₅)2PCH₂)3CCH₃)(C₇H₈)⁽¹⁺⁾*ClO₄^(1-)=[Rh(((C₆H₅)2PCH₂)3CCH₃)(C₇H₈)]ClO₄
• CAS NO: 189084-79-5
• Molecular Weight: 919.179
• Mol File: 189084-79-5.mol

Chemical Properties

• CAS DataBase Reference: Rh(((C₆H₅)2PCH₂)3CCH₃)(C₇H₈)⁽¹⁺⁾*ClO₄^(1-)=[Rh(((C₆H₅)2PCH₂)3CCH₃)(C₇H₈)]ClO₄(CAS DataBase Reference)
• NIST Chemistry Reference: Rh(((C₆H₅)2PCH₂)3CCH₃)(C₇H₈)⁽¹⁺⁾*ClO₄^(1-)=[Rh(((C₆H₅)2PCH₂)3CCH₃)(C₇H₈)]ClO₄(189084-79-5)
• EPA Substance Registry System: Rh(((C₆H₅)2PCH₂)3CCH₃)(C₇H₈)⁽¹⁺⁾*ClO₄^(1-)=[Rh(((C₆H₅)2PCH₂)3CCH₃)(C₇H₈)]ClO₄(189084-79-5)

Safety Data

• Hazardous Substances Data: 189084-79-5(Hazardous Substances Data)

Upstream product

• 60576-58-1 {Rh(NBD)2}ClO₄ 
• 22031-12-5 [2-((diphenylphospino)methyl)-2-methyl-1,3-propanediyl]bis[diphenylphosphine] 

Relevant articles and documents

(R)- and (S)-1,3-Bis(diphenylphosphino)-2-((diphenylphosphino)methyl)-1-phenylpropane ((R)- and (S)-heliphos): Solid-state and solution conformations of a chiral, tripodal tris(phosphine) ligand that is restrained to one helical conformation upon coordination to a rhodium(I) metal center

(R)- and (S)-1,3-bis(diphenylphosphino)-2-((diphenylphosphino)methyl)-1-phenylpropane ((R)- and (S)-heliphos) were synthesized via an acid-catalyzed, diastereoselective Michael addition of diphenylphosphine to bis(1R,2S,5R)-(-)-menthyl) benzylidenemalonate. The crystal structure of [Rh((R)-heliphos)(NBD)](ClO4) was determined by X-ray diffraction. As predicted by studies of molecular models, the framework of coordinated (R)-heliphos adopted a left-handed (Λ) helical conformation in the solid state, and NMR experiments indicated that it strongly favored this conformation in solution as well. The sense of helicity was controlled by the absolute configuration of the stereogenic carbon atom in the ligand.