Controllable synthesis and magnetic properties of two stable cobalt-organic frameworks based on 5-(4-carboxybenzyloxy)isophthalic acid

摘要

By modulating the reaction pH value, two new Co-II compounds, [Co-2(L)(biz)(OH)]center dot H2O(JLNU-5) and [Co(HL) (biz)] (JLNU-6) (H3L = 5-(4-carboxybenzyloxy)isophthalic acid, biz = benzimidazole, JLNU = Jilin Normal University), have been successfully synthesized under mild hydrothermal conditions. JLNU-5 displays a 2D layer 4-connected sql topolygy. JLNU-6 is a 2D sheet structure and (3,6)-connected net with (4 (3))(4(6) center dot 6(6) center dot 8(3)) topology. In addition, the magnetic property of JLNU-5 and JLNU-6 is investigated, which shows the antiferromagnetic behavior induced by the external field.