15007-81-5

Upstream product

• 4358-26-3 tetraphenylborate anion 
• 81229-44-9 (Rh(C₇H₈)(CH(NC₆H₄CH₃)2))2 
• 143-66-8 sodium tetraphenyl borate 
• 81229-43-8 Rh₂(1,5-cyclooctadiene)2(p-tolyl-formamidinate)2 
• 719-80-2 Ethyl diphenylphosphinite 
• 32799-70-5 {Rh(1,2-bis(diphenylphosphino)ethane)(1,5-cyclooctadiene)}ClO₄ 

Relevant academic research and scientific papers

Rhodium-(I) and -(III) Complexes of Diphenylphosphinous Acid and Secondary Phosphites

After shaking 2> (C8H12=cyclo-octa-1,5-diene) with PPh2Cl in methanol-water (7:1 v/v) for 15 min, addition of MCl gave high yields of triple-chloride-bridged anionic complex M2> .The structure of (2a) (CH2Cl2 trisolvate) has been verified by X-ray analysis.The crystals are triclinic, space group P1 with a=12.157(4), b=16.191(5), c=20.523(8) A, α=96.02(3), β=99.88(2), γ=96.10(2), and Z=2.Variable-temperature 31P- n.m.r. spectroscopy indicates that (2a) undergoes facile intramolecular scrambling of the phosphorous nuclei at ambient temperature.Reaction of theanion (2) with BF3.Et2O leads to the formation of the 2>(1-) anion (3).In contrast, reaction of 2> with PPh2Cl in methanol-water (15:1 v/v) gives the cations 4>(1+) and 4>(1+), which do not undergo hydrolysis of the co-ordinated PPh2(OMe) ligand.The 4>(1+) cation is also formed by reaction of Y (Y=ClO4(1-) or BPh4(1-); L2=Ph2AsCH2CH2AsPh2, PhSCH2CH2SPh, or 2,2-bipyridyl) with PPh2(OEt) whereas with the (1+) cation, 2> (4) is isolated.However, reaction of with H2 followed by addition of P(OR)2(O)H (R=Me or Et) gives the unstable cations 2>(1+).

Synthesis and reactivity of formamidinato rhodium(I) complexes

The syntheses of [Rh(diol)(formamidine)]2 complexes (diol cycloocta-1,5-diene (1); diol norbornadiene (2); formamidine N,N′-di-p-tolylformamidine) are reported. These complexes are dimeric and contain the bridging formamidino ligand. They react with CO, dppe and PPh3 with displacement of the diene ligand to yield the known [Rh(CO)2(formamidine)]2, [Rh(dppe)2]+ and [Rh(PPh3)2(formamidine)], respectively; the last complex, in which the formamidine acts as a chelating ligand, was isolated only as the O2 adduct. With HCl or HBF4 aqueous 1 and 2 do not form hydrides but instead the formamidino cation [p-tolyl-NHCHNHtolyl-p]+ and the complexes [Rh(diol)X]2 (X Cl, F); a possible scheme for the reaction with HCl is proposed. The [Rh(C8H12)(formamidine)]2 complex reacts with heterocumulenes as CS2, SO2, PhNCS and PhNCO with diene displacement; the only product isolated was [Rh(CS2)2(formamidine], to which a polymeric structure is assigned.