Triple Resonance Experiments for the Rapid Detection of <sup>103</sup>Rh NMR Shifts: A Combined Experimental and Theoretical Study into Dirhodium and Bismuth–Rhodium Paddlewheel Complexes
Fabio P. Caló, Giovanni Bistoni, Alexander A. Auer, Markus Leutzsch, Alois Fürstner
Abstract
Rh shifts in combination with a detailed analysis of the pertinent shielding tensors forms a sound basis for a qualitative and quantitative interpretation of these otherwise (basically) inaccessible data. The observed trends clearly reflect the influence exerted by the equatorial ligands (carboxylate versus carboxamidate), the axial ligands (solvents), and the internal "metalloligand" (Rh versus Bi) on the electronic estate of the reactive Rh(II) center.
Topics & Concepts
ChemistryRhodiumBismuthCarbeneResonance (particle physics)CarboxylateElectromagnetic shieldingChemical shiftPhysical chemistryComputational chemistryStereochemistryAtomic physicsOrganic chemistryCatalysisEngineeringElectrical engineeringPhysicsCyclopropane Reaction MechanismsOrganometallic Complex Synthesis and CatalysisSynthesis and Reactivity of Heterocycles