The XMM spectral catalog of SDSS optically selected Seyfert 2 galaxies E. Koulouridis, I. Georgantopoulos, G. Loukaidou, A. Corral, A. Akylas, L. Koutoulidis, E. F. Jiménez-Andrade, J. León-Tavares and P. Ranalli A&A, 586 (2016) A3 Published online: 19 January 2016 DOI: 10.1051/0004-6361/201526515