Hydrothermal synthesis, crystal structure, and luminescent property of a new Cd(II) coordination polymer with fourfold interpenetrated diamond topology

ABSTRACT

Under hydrothermal condition, a new Cd(II) coordination polymer, [and bib = ], has been synthesized with mixed organic ligands. Complex, {[Cd(cda)(L)]·2H₂O}_n(1) (H₂cda = 1,4-cyclohexane dicarboxylic acid and L = 1,4-bis (2-methyl imidazol-3-ium-yl) benzene), is monoclinic, space group P2/c with a = 13.312(3), b = 7.316(4), c = 14.870(3) Å, V = 1447.8(12) ų, Z = 2, M_r = 556.88, D_c = 1.277g/cm³, F(000) = 568, and µ = 0.791 mm^–1. The final refinement gave R = 0.0470and wR = 0.0505 for 4,492 reflections with I > 2σ(I). Single crystal X-ray analysis reveals that complex 1 features a three-dimensional structure with a fourfold interpenetrating diamondoid net. Furthermore the solid state luminescent property of title complex 1 was investigated at room temperature in the solid state.

KEYWORDS:

• Cd(II)
• coordination polymer
• crystal structure