The file contains the raw data of the Article "Ruddlesden-Popper nitrides". All data are provided as machine-readable filetypes, e.g. xy, dat, hkl. The file includes: Conductivity of Nd2ReN4, Pr2ReN4 High-temperature X-ray powder diffraction of o-Ce2TaN4, Nd2ReN4, Pr2ReN4 In-House Powder diffraction of o-Ce2TaN4, Nd2ReN4, Pr2ReN4, t-Ce2TaN4, Nd2ReN3, Pr2ReN3 Magnetic measurements of o-Ce2TaN4, Nd2ReN4, Pr2ReN4 Neutron Powder Diffraction of o-Ce2TaN4, Nd2ReN4, Pr2ReN4 Single-crystal data of Pr2ReN4 X-ray Photoelectron spectroscopy data of o-Ce2TaN4