Multireference Equation of Motion Coupled Cluster study of atomic excitation spectra of first-row transition metal atoms Cr, Mn, Fe and Co

RMS errors (in eV) in comparison to NIST of valence excited states for atoms Cr, Mn, Fe and Co of charge +1, +2 and neutral systems calculated with Multireference Equation of Motion Coupled Cluster methods T|SXD, T|SXD-nph and T|SXD|U-min.