Citation: De la Pinta, Noelia; Fidalgo, M. Luz; Lezama, Luis; Madariaga, Gotzon; Callejo, Lorena; Cort\'es, Roberto (2011). Ferromagnetic End-to-End Azides and Tetrahedral Cobalt: Unusual Findings in the M-BPA-Pseudohalide2System. Crystal Growth & Design, 11, pp. 1310-.