135157-57-2

Upstream product

• 15318-33-9 chlorocarbonylbis(triphenylphosphine)rhodium(I) 
• 56-34-8 tetraethylammonium chloride 

Downstream Products

• 135157-54-9 {RhCu(CO)(P(C6H5)3)2(η5-C2B9H9(CH3)2)} 
• 135196-95-1 {RhCu(CO)(P(CH3)3)(P(C6H5)3)(η5-C2B9H9(CH3)2)} 
• 149924-52-7 MnRh(CO)5(P(C₆H₅)3)(C₂B₉H₉(CH₃)2) 
• 149924-52-7 MnRh(CO)5(P(C₆H₅)3)(C₂B₉H₉(CH₃)2) 
• 135157-53-8 {RhAu(CO)(P(C6H5)3)2(η5-C2B9H9(CH3)2)} 

Relevant academic research and scientific papers

Carbaboranerhodium Complexes with Rh-Rh, Rh-Cu and Rh-Au Bonds; Crystal Structure of 5-C2B9H8Me2)(CO)3(η5-C2B9H9Me2)>

The compound 5-C2B9H9Me2)> has been prepared and used to synthesise the dimetal complexes 5-C2B9H9Me2)> (M = Cu or Au) and 5-C2B9H9Me2)>.Protonation of 5-C2B9H9Me2)> gives an unstable hydride 5-C2B9H9Me2)>.In contrast, treatment of 5-C2B9H9Me2)> with HBF4*Et2O affords a dirhodium complex 5-C2B9H9Me2)2> in which one carbaborane fragment bridges the Rh-Rh bond via an exopolyhedral B-H->Rh bond.This species can be deprotonated to give an anionic complex 5-C2B9H8Me2)(CO)3(η5-C2B9H9Me2)>-, the + salt which may be obtained directly from 5-C2B9H9Me2)> by treatment of the latter with Cl.An X-ray crystallographic study established the structure of the anion.One rhodium centre is ligated by a CO molecule and by a C2B9H9Me2 cage in the normal η5 bonding mode, the other carries two CO groups and an η5-C2B9 cage.However, a boron atom β to the carbons in the pentagonal open CCBBB face of this cage forms a ? bond to the other rhodium atom , so that this C2B9H8Me2 group bridges the Rh-Rh bond .The NMR data for the new compounds are reported and discussed.