名称:
Syntheses and characterization of two 1D Cu(II) coordination polymers with 2,2′:6′,2″-terpyridine ligand
摘要:
The solution reactions of CuCl(2) with 2,2':6',2aEuro(3)-terpyridine (Terpy) and dicarboxylic acid (glutaric acid or suberic acid) afforded two 1D coordination polymers [Cu(Terpy)(C(5)H(6)O(4))] (n) (I) and [Cu(Terpy)(C(8)H(12)O(4))] center dot 3H(2)O (II) and their structures were characterized by IR, TG-DTA, and single-crystal X-ray diffraction. Crystallographic data for I: C(20)H(16)CuN(3)O(4), M (r) = 425.90, monoclinic, space group C2/c, a = 10.335(2), b = 21.193(4), c = 8.580(2) , beta = 111.99(3)A degrees, V = 1742.5(6) (3), Z = 4, rho (c) = 1.623 g/cm(3), F(000) = 872, R = 0.0304 and wR = 0.0915; and those for II: C(23)H(29)CuN(3)O(7), M (r) = 523.03, triclinic, space group P (1) over bar, a = 8.362(2), b = 10.605(2), c = 14.617(3) , alpha = 73.26(3)A degrees, beta = 86.23(3)A degrees, gamma = 69.45(3)A degrees, V = 1161.3(4) (3), Z = 2, rho (c) = 1.496 g/cm(3), F(000) = 546, R = 0.0636 and wR = 0.1106. X-ray diffracion studies reveal that both complexes I and II feature 1D chain. The 1D polymer chains are connected by pi-pi-stacking interactions to generate 2D supramolecular layers.