Syntheses, structures, and luminescence of two Zn(II) coordination polymers based on 5-(4-imidazol-1-yl-phenyl)-2H-tetrazole and carboxylates

Abstract

Two Zn(II) coordination polymers with intricate 2-D network and 3-D framework with new 3-connected topology were constructed.Reactions of Zn(II) salts, 5-(4-(1H-imidazol-1-yl)phenyl)-1H-tetrazolate (HIPT) and 2-mercaptobenzoic acid or 2-propyl-1H-imidazole-4,5-dicarboxylic acid (H 3 PrIDC), result in two mixed-ligand coordination polymers (CPs), [Zn 2 (IPT)(DSDB)(OH)] n (H 2 DSDB = 2,2′-disulfanediyldibenzoic acid, 1) and [Zn 2 (IPT)(PrIDC)(H 2 O)] n (H 3 PrIDC = 2-propyl-1H-imidazole-4,5-dicarboxylic acid, 2). Compound 1 possesses a 2-D structure built by 1-D [Zn(IPT)] n chains and DSDB 2− connectors, in which the DSDB 2− is generated via in situ reaction from 2-mercaptobenzoic acid. It displays a new intricate 4-nodal {3·4·6·7·8·9}{3·6·7·8·9·10}{3·8·9}{4·6·8} topology. Compound 2 displays a 3-D framework with new 3-connected topology with Schläfli symbol of (4·8·10) (8·12 2 ), in which the 1-D Zn-carboxylate chains were bridged by 3-connected IPT − ligands. The thermal stabilities and *Corresponding authors.

Construction of four d10 coordination polymers containing binuclear rings as building blocks from 4′-(2H-tetrazol-5-yl)biphenyl-4-carboxylic acid

“…Single crystal X-ray diffraction shows that 4 crystallizes in the monoclinic system with P2(1)/c space group and the asymmetric unit contains only one crystallographically independent Cd(II), one TBPC 2− , and one coordinated water. The local coordination geometry around the Cd(II) ion can be described as a [CdN 3 O 3 ] slightly distorted octahedron [29,30], with the axial positions occupied by one nitrogen from one TBPC 2− and one oxygen from one coordinated water ( figure 4(a)). The equatorial plane consists of two nitrogens and two carboxylate oxygens from the other three different TBPC 2− ligands.…”