Citation:
ZHANG Tian, XUE Li-Ping. Ionothermal Synthesis, Crystal Structure and Photocatalytic Property of a New Cobalt Coordination Polymer[J]. Chinese Journal of Structural Chemistry,
2015, 34(3): 417-422.
doi:
10.14102/j.cnki.0254-5861.2011-0050
Ionothermal Synthesis, Crystal Structure and Photocatalytic Property of a New Cobalt Coordination Polymer
摘要:
The reaction of flexible bis(imidazole) ligand and 1,2-bis(imidazol-1'-yl)methane (bimm) with Co(Ⅱ) salt under ionothermal method resulted in the formation of a new coordination polymer {[Co(bimm)3]·(PF6)2}n (1). X-ray single-crystal diffraction determination reveals that 1 crystallizes in the triclinic P1 space group, with a=8.647(6), b=12.092(9), c=14.967(11)Å, α=88.912(8), β=81.199(8), γ=89.395(8)°, V=1546(2)Å3, Z=2, Mr=793.39, Dc=1.704 Mg/m3, μ=0.768 mm-1, F(000)=798, the final R=0.0626 and wR=0.1634 for 4319 observed reflections with I>2σ(I). In compound 1, the Co(Ⅱ) ion is connected to another Co(Ⅱ) by two bimm ligands to form 1D double chains which are further linked by bimm ligands to form a 2D wavelike layer. Topologically, the structure of 1 represents a uninodal 2D 4-connected sql/Shubnikov tetragonal plane net. Moreover, thermogravimetric analyses and photocatalytic property for 1 have also been investigated.
English
Ionothermal Synthesis, Crystal Structure and Photocatalytic Property of a New Cobalt Coordination Polymer
Abstract:
The reaction of flexible bis(imidazole) ligand and 1,2-bis(imidazol-1'-yl)methane (bimm) with Co(Ⅱ) salt under ionothermal method resulted in the formation of a new coordination polymer {[Co(bimm)3]·(PF6)2}n (1). X-ray single-crystal diffraction determination reveals that 1 crystallizes in the triclinic P1 space group, with a=8.647(6), b=12.092(9), c=14.967(11)Å, α=88.912(8), β=81.199(8), γ=89.395(8)°, V=1546(2)Å3, Z=2, Mr=793.39, Dc=1.704 Mg/m3, μ=0.768 mm-1, F(000)=798, the final R=0.0626 and wR=0.1634 for 4319 observed reflections with I>2σ(I). In compound 1, the Co(Ⅱ) ion is connected to another Co(Ⅱ) by two bimm ligands to form 1D double chains which are further linked by bimm ligands to form a 2D wavelike layer. Topologically, the structure of 1 represents a uninodal 2D 4-connected sql/Shubnikov tetragonal plane net. Moreover, thermogravimetric analyses and photocatalytic property for 1 have also been investigated.
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Key words:
- cobalt coordination polymer
- / crystal structure
- / photocatalytic property
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