The ligand [1,2 bis(4 pyridinecarboxamido)ethane] (L) and the coordination polymer {[Cu(L) 2(H 2O)]·(NO 3) 2·6 H 2O} n (1) have been synthesized and characterized by IR and 1H NMR spectra. Their molecular structures and the packing of 1 have been determined by single crystal X ray diffraction analysis. The Cu(II) in 1 is bridged by two ligands forming an infinite one dimensional chain like structure and L in 1 adopts a different conformation from its free state. 1 belongs to monoclinic, space group P 2 1/ n , a = 1 2896(3) nm, b =1 2552(8) nm, c =2 2903(19) nm, β = 93 04(5)°, Z =4, V =3 702(4) nm 3 The TG and DTG experiments showed that the uncoordinated H 2O can be removed at low temperature by heating, and it does not decompose until 250 ℃. The ligand [1,2 bis (4 pyridinecarboxamido) ethane] (L) and the coordination polymer {[Cu (L) 2 (H 2O)] · (NO 3) 2 · 6 H 2O} n and characterized by IR and 1H NMR spectra. Their molecular structures and the packing of 1 have been determined by single crystal X-ray diffraction analysis. The Cu (II) in 1 is bridged by two ligands forming an infinite one dimensional chain like structure and L in 1 adopts a different conformation from its free state. 1 belongs to monoclinic, space group P 2 1 / n, a = 1 2896 (3) nm, b = 1 2552 (8) nm, , β = 93 04 (5) °, Z = 4, V = 3 702 (4) nm 3 The TG and DTG experiments showed that the uncoordinated H 2O can be removed at low temperature by heating, and it does not decompose until 250 ℃.