preserves the spin structure of a Fe3Cr single‐molecule magnet of current interest in molecular spintronics. Magnetic polarization at metal sites is measured over a broad temperature range (from 10 to 300 K) by X‐ray magnetic circular dichroism (XMCD), which provides the required monolayer sensitivity. The data are used to evaluate FeCr superexchangecoupling interactions, which compare well with bulk‐phase