Self-assembly of Ag(I)-based complexes and layered coordination polymers bridged by (2-thiazolyl)sulfides

Dinuclear complex, [Ag2(2-Mt)2(MeCN)2(NO3)2] (1) as well as layered (2D) coordination polymers (CPs), [Ag2(2-Mt)2(NO3)2]n (2) and [Ag4(2-Mt)4(NO3)4·2H2O]n (3), are self-assembled from 2-(methylthio)thiazole (2-Mt) and AgNO3 under different conditions. These compounds contain a [Ag2(2-Mt)2] unit consisting of two metal atoms bridged by 2-Mt ligands (μ2-N,S) in head-to-tail (for 1 and 2) and head-to-head (for 3) manner. 2-(Methylthio)benzothiazole (2-Mbt) reacts with AgNO3 to assemble complex [Ag2(2-Mbt)2(MeCN)2(NO3)2] (4), showing interesting dual emission behavior associated with the presence of fluorescence and phosphorescence, contributions of which depends on the excitation wavelength.