| Abstract: Two Co(Ⅱ) complexes [Co(β-diketonate)2(py)2], [Co(bzac)2(py)2](1) and [Co(tta)2(py)2](2) (bzacH=benzoylacetone, ttaH=2-thenoyltrifluoroacetone, py=pyridine) were synthesized and characterized by X-ray diffraction. Complex 1 crystallizes in monoclinic system, space group P21/n with a=0.7409(2), b=1.7430(4), c=1.0527(2)nm,β=102.23(3)°, V=1.3285(5)nm3, Z=2, F(000)=562, Dc=1.349g·cm-3, μ(MoKα)=0.684mm-1. The structure was refined to R=0.0307 and wR=0.0827 for observed 2437 reflections with I≥2σ(I). Complex 2 crystallizes in triclinic system, space group with a=0.9634(2), b=0.9678(2), c=0.9713(2)nm, α=111.18(3), β=114.61(3), γ=99.05(3)°, V=0.7154(2)nm3, Z=1, F(000)=333, Dc=1.531g·cm-3, μ(MoKα)=0.819mm-1. The structure was refined to R=0.0595 and wR=0.1769 for observed 2708 reflections with I≥2σ(I). In both structures the Co(Ⅱ) ions are six-coordinated to form distorted octahedron. |
