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An electron paramagnetic resonance investigation of an indexed single crystal of the chiral molecular magnet (R)-3MLNN·Mn(hfac)₂ which is comprised of a chiral phenyl α-nitronyl nitroxide and a manganese(II) ion is presented. The crystal of the compound, which consists of ferrimagnetic chains of radical and metal ion and orders ferromagnetically below 4 K, shows temperature and angle-dependent spectra which may give clues as to the nature of the anisotropy in the system and the types of interaction at play.