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合成了3个超分子化合物[M(4,4’-bipy)2(H2O)4]·(4,4’-bipy)2·(3,5-diaba)2·8H2O(M=Co(1),Ni(2),Cd(3);4,4’-bipy=4,4’-联吡啶;3,5-diaba=3,5-二氨基苯甲酸阴离子),用红外光谱、元素分析及X-射线单晶衍射进行了表征。3个化合物的晶体都属于单斜晶系,空间群为P2/c。晶体学参数:化合物1:a=0.9389(2)nm,b=0.7751(1)nm,c=3.9284(6)nm,β=90.14(2)°,V=2.85880(69)nm3,Z=4,Dc=1.397g·cm-3,F(000)=1266,μ=0.380mm-1,R1=0.0349,wR2=0.0829;化合物2:a=0.9383(2)nm,b=0.7753(1)nm,c=3.9218(6)nm,β=90.09(1)°,V=2.85280(68)nm3,Z=2,Dc=1.399g·cm-3,F(000)=1268,μ=0.420mm-1,R1=0.0366,wR2=0.0805;化合物3:a=0.94091(13)nm,b=0.77885(11)nm,c=3.9712(5)nm,β=90.10°,V=2.9102(7)nm3,Z=2,Dc=1.433g·cm-3,F(000)=1308,μ=0.454mm-1,R1=0.0468,wR2=0.0964。3,5-diaba未参与配位,在配位阳离子[M(4,4’-bipy)2(H2O)4]2+中,金属离子M髤与来自2个4,4’-bipy的2个氮原子和4个水分子的氧原子配位,呈八面体的几何构型。分子中还存在未配位的4,4’-bipy。通过配位阳离子、游离4,4’-bipy及未配位的3,5-diaba间的丰富氢键,构建成具有三维结构的超分子化合物。
Three supermolecular compounds [M (4,4’-bipy) 2 (H2O) 4] (4,4’-bipy) 2 · (3,5-diaba) 2 · 8H2O ), Ni (2), Cd (3); 4,4’-bipy = 4,4’-bipyridine; 3,5-diaba = 3,5-diaminobenzoate anion) And X-ray single crystal diffraction were characterized. The three compounds all belong to the monoclinic system with space group P2 / c. Crystallographic parameters: Compound 1: a = 0.9389 (2) nm, b = 0.7751 nm, c = 3.9284 nm, β = 90.14 nm, V = 2.85880 nm, Z = 4 , D = 1.397 g · cm -3, F (000) = 1266, μ = 0.380 mm -1, R 1 = 0.0349, w R 2 = 0.0829, Compound 2: a = 0.9383 (2) nm, , c = 3.9218 (6) nm, β = 90.09 (1) °, V = 2.85280 (68) nm3, Z = 2, Dc = 1.399 g · cm -3, F (000) = 1268, μ = 0.420 mm- (3) a = 0.94091 (13) nm, b = 0.77885 (11) nm, c = 3.9712 (5) nm, β = 90.10 °, V = 2.9102 (7) nm3, Z = 2, Dc = 1.433g · cm-3, F (000) = 1308, μ = 0.454mm-1, R1 = 0.0468, wR2 = 0.0964.3,5-diaba did not participate in the coordination. M (4,4’-bipy) 2 (H2O) 4] 2+, the metal ion M 配 coordinates with oxygen atoms from two nitrogen atoms and four water molecules from two 4,4’-bipy, Octahedral geometry. Uncoordinated 4,4’-bipy also exists in the molecule. By coordinating the cation, free 4,4’-bipy and unpaired 3,5-diaba rich hydrogen bonds between the three-dimensional structure into a three-dimensional structure of the supramolecular compounds.