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A novel coordination polymer {[Cu(en)2][Ag2I4]}n (en = ethylenediamine) was synthesized by the reaction of NaAgI2 and Cu(en)2(NO3)2?2H2O at room temperature with pH = 6.0, and the structure was characterized by X-ray single-crystal diffraction. It crystallizes in monoclinic, space group C2/m, with a=10.646(2), b = 13.304(3), c = 6.8445(14) ?, a = 118.95(3)o, C4H16N4CuAg2I4, Mr = 907.10, V = 848.3(4) ?3, Z = 2, Dc = 3.551 g/cm3, F(000) = 806, ì(MoKá) = 10.787 mm?1, the final R1 = 0.0256 and wR2 = 0.0654 for 900 observed reflections with I > 2σ(I). According to structural analysis, the title compound consists of template cation [Cu(en)2]2+ and inorganic chain [Ag2I4]n2?. The polymeric negative chain [Ag2I4]n2? is built up from pairs of AgI4 tetrahedron by sharing one edge. Through N–H···I hydrogen-bonding interactions, the whole structure represents a quasi-two dimensional arrangement. Electrostatic attraction exists between organic cations and inorganic chains, leading to a so-called organic-inorganic hybrid structure.
A novel coordination polymer {[Cu (en) 2] [Ag2I4]} n (en = ethylenediamine) was synthesized by the reaction of NaAgI2 and Cu (en) 2 (NO3) 2 · 2H2O at room temperature with pH = 6.0, and The structure was characterized by X-ray single-crystal diffraction. It crystallizes in monoclinic space group C2 / m with a = 10.646 (2), b = 13.304 (3), c = 6.8445 (3) o, C4H16N4CuAg2I4, Mr = 907.10, V = 848.3 (4)? 3, Z = 2, Dc = 3.551 g / cm3, F (000) = 806, Moha = 10.787 mm? R1 = 0.0256 and wR2 = 0.0654 for 900 observed reflections with I> 2σ (I). According to structural analysis, the title compound consists of template cation [Cu (en) 2] 2+ and inorganic chain [Ag2I4] n2. polymeric negative chain [Ag2I4] n2® is built up from pairs of AgI4 tetrahedron by sharing one edge. Through N-H ··· I hydrogen-bonding interactions, the whole structure represents a quasi-two dimensional arrangement. Electrostatic attraction exists between organic cations and inorganic chains, leading to a so-c alled organic-inorganic hybrid structure.