Preparation of a penta-ammineruthenium(III) derivative of Chromatium vinosum HIPIP and the kinetics of intramolecular electron transfer
Abstract
The rate constant (∼20 °C) for intramolecular electron transfer from Ru(NH3)52+ attached at the Histidine-42 of HIPIP to the [4Fe–4S](oxidised) active site, distance 7.9 Å, is 18 s–1.