Influence of anionic sulfonate-containing and nitrogen-containing mixed-ligands on the structures of silver coordination polymers.
In this article, a series of mixed-ligand Ag(i) coordination polymers, namely, Ag(L1)H(2)O (), Ag(2)(hmt)(2)(L1)(2) (), [Ag(HL2)]H(2)O (), [Ag(L2)(biim)][Ag(biim)] (), [K(5)(L3)(2)][Ag(H(2)O)(2)] (), [Ag(2)(L3)(3-iso)][Ag(3-iso)]5H(2)O (), [Ag(3)(L3)(bipy)(3)(H(2)O)]6H(2)O (), [Ag(3)(L3)(biim)(3)]H(2)O (), and [Ag(3)(L3)(hmt)(2)(H(2)O)(3)]H(2)O () (where hmt = hexamethylenetetramine, bipy = 4,4'-bipyridine, biim = 1,1'-(1,4-butanediyl)-bis(imidazole), 3-iso = 3-methylisoquinoline, L1 = 2,5-dichloro-4-amino-benzenesulfonate anion, L2 = 2-nitroso-1-naphthol-4-sulfonate anion and L3 = 4-hydroxy-5-nitro-1,3-benzenedisulfonate anion), have been synthesized by varying the anionic sulfonate-containing ligands and nitrogen-containing secondary ligands. Compounds and were synthesized through their parent compounds and , respectively, while were obtained by their parent compound . Ag(i) centers of are linked by L1 anions to generate a 1D polymeric chain, while Ag(i) centers of are bridged by hmt ligands to form a 2D polymeric layer. In , Ag(i) centers are connected by L2 anions to yield a 1D double chain, whereas Ag(i) centers in are joined by biim ligands and L2 anions, generating an unusual anionic chain and a cationic chain, respectively. In , Ag(i) centers are coordinated by water molecules, and K(i) cations are coordinated by L3 anions to form a pillared layered structure with inorganic layers and organic pillars. In , Ag(i) centers are coordinated by 3-iso ligands and L3 anions to generate a discrete molecular structure. In , bipy ligands bridge Ag(i) centers to give Ag-bipy chains, which are further linked by L3 anions to produce a 2D polymeric layer. In , Ag(i) centers are bridged by biim ligands to generate a 1D polymeric chain. In , the hmt ligands connect Ag(i) centers to give a binodal (3,4)-connected net with (6(3))(6(5).8)(2) topology. These results indicate that anionic sulfonate-containing ligands and the nitrogen-containing secondary ligands play important roles in the structural formation of the Ag(i) complexes. Additionally, the luminescent properties, elemental analyses and IR spectroscopy of these compounds were also studied.
Key Lab of Polyoxometalate Science, Department of Chemistry, Northeast Normal University, Changchun, 130024, People's Republic of China.
Hua
H
Wu
Xian-Wu
XW
Dong
Jian-Fang
JF
Ma
Hai-Yan
HY
Liu
Jin
J
Yang
Hong-Ye
HY
Bai