Syntheses, structures and properties of Mn(II), Zn(II) and Ag(I) coordination polymers with 2-(1,2,4-triazol-1-yl)acetate

The self-assembly reaction of 2-(1,2,4-triazol-1-yl)acetic acid (Htza) with Mn(II), Zn(II) and Ag(I) salts gave three coordination polymers [Mn(tza)2]n (1), [Zn(tza)2]n (2) and [Ag3(tza)2(ClO4)]n (3). 1 has a (3,6)-connected CdCl2-type two-dimensional network. 2 is a neutral two-dimensional (4,4) network. However 3 shows the complicated two-dimensional undulated network. 2 and 3 exhibit blue luminescent emissions maxima at 420 and 437 nm, respectively in the solid state at room temperature. The thermal stability of 1, 2 and 3 were observed. The diffuse reflectance UV–vis spectroscopy of 1, 2 and 3 were measured.