Hydrothermal synthesis and structural characterization of two unprecedented coordination polymers: {Co3[O2C(CH2)4CO2]3[1,10′-phen]2}n and {Co2[O2C(CH2)3CO2]2[1,10′-phen]2}n

Two new cobalt (II) containing coordination polymers {Co3[O2C(CH2)4CO2]3[1,10′-phen]2}n (1) and {Co2[O2C(CH2)3CO2]2[1,10′-phen]2}n (2) have been synthesized under the hydrothermal condition and characterized by elemental analyses, IR, TG analyses and the single crystal X-ray diffractions. Crystal data for compound 1: C42H42Co3N4O12, triclinic P-1, a=9.0014(18) Å, b=9.0573(18) Å, c=13.327(3) Å, α=97.93(3), β=100.06(3), γ=104.85(3), Z=1. Crystal data for compound 2: C34H32Co2N4O8, monoclinic P2(1)/c, a=10.537(2) Å, b=20.780(4) Å, c=13.471(3) Å, β=100.63(3), Z=4. Compound 1 exhibits a novel two-dimensional layer framework, in which the trinuclear Co clusters are linked by adipate anions. Compound 2 represents a one-dimensional chain. Furthermore, the magnetic behavior of compound 2 is studied.