Novel three-dimensional 3d–4f microporous magnets exhibiting selective gas adsorption behavior

Abstract

Three microporous Ln-Co-pyta heterometallic compounds [Ln4Co3(pyta)6(H2O)9].5H2O (Ln = Sm (1), Eu (2), Gd (3); H3pyta = 2,4,6-pyridinetricarboxylic acid) have interesting selective adsorption abilities towards H2/N2 and CO2/N2 because of size-selective effects; magnetic analysis reveals that has a ferromagnetic behavior.