Fig. 2. (a) Schematic of the SABRE process. A p-H2 molecule coordinates to an iridium-centered catalyst. Each hydride then has a distinct, enhanced signal in the 1H NMR spectrum. In the presence of a coordinated substrate, the chemical shift of the hydride is slightly modified. Simultaneously, spin-order is transferred through the coupling network from the p-H2 to the target molecule. A hyperpolarised substrate and an o-H2 molecule are released from the complex. (b) Schematic of the gas–liquid contact channel (c) schematic of the meandering channel for improved contact area. On the gas side, the total channel length is 180 mm while the enclosed volume is 4.8 μL. On the gas side, the fluidic path is 120 mm long and the channel volume is 20.2 μL. The total area available for gas exchange is 45 mm2.
