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A new mixed-ligand Zn(Ⅱ)complex,[Zn(4,4’-bipy)_2(H_2O)_4]·2ANS·6H_2O(1,4,4’- bipy=4,4’-bipyridine,HANS=2-aminonaphthalene-1-sulfonic acid),has been isolated and structurally characterized by single-crystal X-ray diffraction,FT-IR spectrum,TG and elemental analysis.It crystallizes in the monoclinic system,space group P2_l/c with a=12.4852(8),b= 18.3163(12),c=10.9707(7)(?),β=114.2600(10)°,V=2287.3(3)(?)~3,D_c=1.455 g/cm~3,M_r= 1002.37,Z=2,F(000)=1048,μ=0.704 mm~(-1),the final R=0.0408 and wR=0.962 for 4029 observed reflections with I>2σ(I).Interestingly,an unusual one-dimensional(1D)water tape with cyclic tetrameric water clusters can be observed in 1,which are further trapped via Zn-O coordination bonds exhibiting a 2D Zn(Ⅱ)-water layer.These 2D Zn(Ⅱ)-water layers are stacked together into a 3D interdigitated supramolecular architecture via weakπ…πinteractions,in which free ANS anions are tightly filled by hydrogen-bonding interactions.Thus,π…πand classical hydrogen-bonding interactions are found as main driving forces to stabilize the 2D Zn(Ⅱ)-water layers.
A new mixed-ligand Zn (Ⅱ) complex, [Zn (4,4’-bipy) _2 (H_2O) _4] · 2ANS · 6H_2O (1,4,4’-bipy = 4,4’-bipyridine, HANS = 2-aminonaphthalene-1-sulfonic acid, has been isolated and structurally characterized by single-crystal X-ray diffraction, FT-IR spectrum, TG and elemental analysis. It crystallizes in the monoclinic system, space group P2_l / c with a = 12.4852 (8), b = 18.3163 (12) and c = 10.9707 (7), β = 114.2600 (10) ° and V = 2287.3 (3), and Dc = 1.455 g / cm 3 , The final R = 0.0408 and the wR = 0.962 for 4029 observed reflections with I> 2σ (I). Interestingly, an unusual one-dimensional (1D) water tape with cyclic tetrameric water clusters can be observed in 1, which are further trapped via Zn-O coordination bonds exhibiting a 2D Zn (II) -water layer.These 2D Zn (II) are stacked together into a 3D interdigitated supramolecular architecture via weakπ ... πinteractions, in which free ANS anions are tightly filled by hydrogen-bonding interactions. Thus, π ... πand classical hydrogen- bonding interactions are found as main driving forces to stabilize the 2D Zn (II) -water layers.