2017-12-182017-12-181972Conde Amiano, A., López Castro, A. y Márquez Delgado, R. (1972). The Crystal and Molecular Structure of 2-Formylpyridine Selenosemicarbazone. Acta crystallographica. Section B, Structural science, 28 (DEC15), 3464-3469.0108-7681http://hdl.handle.net/11441/67754The structure of 2-formylpyridine selenosemicarbazone, SeN4CTH8, has been determined from threedimensional X-ray photographic data. The crystals are monoclinic, space group P2t/e, with unit-cell dimensions a=9.320, b=6-524 and c= 16-275 ,&, fl=90.53 °. There are four formula units in the cell. The structure was solved by the two-dimensional minimum Patterson function and the heavy atom method. It was refined by a full-matrix least-squares method to a final residual R value of0.11 for 1180 observed reflexions. The Se-C bond length of 1.83 ,~ possesses only partial double-bond character. The molecules are linked by N-H...Se hydrogen bonds to form dimer-like units, which are held together by N-H...N hydrogen bonds.application/pdfengAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess10.1107/S0567740872008180