Dalia Kar, Sudhin K. Mondal, Mahua Das and Asim K. Das
In the IrIII (ca. 10–6moldm–3) catalysed oxidation of formaldehyde by CeIV in aqueous H2SO4 media an intermediate involving an association of the catalyst, substrate and oxidant is formed before the electron transfer step and IrIII/IrIV catalytic cycle operates.