CRYSTAL STRUCTURE, THERMAL AND FLUORESCENT PROPERTIES OF A 1D Cd(II) COORDINATION POLYMER BASED ON THE BIS(BENZIMIDAZOLE) LIGAND
X. Du, Y.Y. Wang, Y.Q. Zhao, G.H. Cui
Hebei United University, Tangshan, Hebei Province, P. R. China
Keywords: cadmium(II), bis(benzimidazole), hydrogen bond, fluorescent property
Abstract
A 1D cadmium (II) coordination polymer {[Cd
2(L)
3Cl
3]×Cl}
n (1) (L = 1,3-bis(benzimidazol-l-yl)-2-propanol) is synthesized by the hydrothermal reaction and characterized by elemental analysis, IR, TG, and X-ray single crystal diffraction. Compound
1 crystallizes in the hexagonal system, space group
P 63/
m with
a = 15.4857(11) Å,
b = 15.4857(11) Å,
c = 14.478(2) Å, γ = 120°,
V = 3006.8(5) Å
3,
Z = 2. In the structure of complex
1, each cadmium center is hexahedrally coordinated by three chlorine atoms and three nitrogen atoms of three distinct L ligands. A detailed analysis reveals that compound
1 exhibits a 1D chain of beads and the adjacent chains are further linked by C-H⋯Cl hydrogen bonding to form a 2D supramolecular framework. Furthermore, the solid-state fluorescent property of 1 is investigated at room temperature.
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