Metal-free H 2 activations are unusual but interesting for catalytic transformations, particularly in parahydrogen-based nuclear spin hyperpolarization techniques. We demonstrate that metal-free singlet phosphorus biradicaloid, [P(μ-NTer)] 2 , provides pronounced 1 H and 31 P hyperpolarization while activating the parahydrogen molecules. A brief analysis of the resulting NMR signals and the important kinetic parameters are presented.
- NUCLEAR-SPIN HYPERPOLARIZATION
- STATE NMR CHARACTERIZATION
- HETEROGENEOUS HYDROGENATION
- FREE ACTIVATION