doi:10.1107/S2052520614003023engRodríguez-Velamazán, J.A.Cañadillas-Delgado, L.Castro, M.McIntyre, G.J.Real, J.A.Temperature- and pressure-dependent structural study of {Fe(pmd) 2[Ag(CN)2 ]2}n spin-crossover compound by neutron Laue diffractionART-2014-86956The effect of pressure (up to 0.17 GPa) on the spin-crossover compound {Fe(pmd)2[Ag(CN)2]2}n [orthorhombic isomer (II), pmd = pyrimidine] has been investigated by temperature- and pressure-dependent neutron Laue diffraction and magnetometry. The cooperative high-spin ¿ low-spin transition, centred at ca 180 K at ambient pressure, is shifted to higher temperatures as pressure is applied, showing a moderate sensitivity of the compound to pressure, since the spin transition is displaced by ca 140 K GPa-1. The space-group symmetry (orthorhombic Pccn) remains unchanged over the pressure–temperature (P–T) range studied. The main structural consequence of the high-spin to low-spin transition is the contraction of the distorted octahedral [FeN6] chromophores, being more marked in the axial positions (occupied by the pmd units), than in the equatorial positions (occupied by four [Ag(CN)2]- bridging ligands).2014http://zaguan.unizar.es/record/6060210.1107/S2052520614003023http://zaguan.unizar.es/record/60602oai:zaguan.unizar.es:60602info:eu-repo/grantAgreement/ES/MICINN/CSD2007-00010info:eu-repo/grantAgreement/ES/MINECO/CTQ2010-18414info:eu-repo/grantAgreement/ES/MINECO/MAT2011-24284info:eu-repo/grantAgreement/ES/MINECO/MAT2011-27233-C02-02Acta Crystallographica Section B-Structural Science Crystal Engineering and Materials 70, 3 (2014), 436-443All rights reservedhttp://www.europeana.eu/rights/rr-f/info:eu-repo/semantics/openAccess