Determination of 1J(59Co-59Co) scalar coupling constants in the tetrahedral mixed-metal cluster HFeCo3(CO)10(PCyH2)(PPh2[CH2C(O)Ph]) using COSY-type NMR experiments

► Theoretical COSY and DQF-COSY NMR spectra for an AMX system of spins S=7/2. ► Determination of 1J(59Co-59Co)'s by simulation of an experimental DQF-COSY spectrum. ► New advantages of using DQF-COSY experiments over conventional COSY experiments.