High pressure NMR flow cell for the in situ study of homogeneous catalysis

A novel, convenient high pressure NMR flow cell for the in situ study of homogeneous catalysis capable of operating over the pressure range 1 to 200 bar and temperature range -40 to 175 degrees C is described; importantly, the inlet gas passes through the reaction solution ensuring good gas-solution mixing and maintaining the concentration of reacting gas in the solution thus preventing starvation of the reaction of gaseous reagents; the cell has been used to study the reaction of a rhodium-ruthenium bimetallic complex with CO.