Syntheses, structure and luminescent sensing for Cr(VI)/Fe(III) of a Zn(II) coordination polymer

A Zn(II) coordination polymer formulated as {[Zn(L)(bimb)]center dot 2H(2)O)}(n) from 4-mercaptobenzoic acid (HL) and 1,4-bis(imidazol-1-ylmethyl)benzene) (bimb), was successfully constructed under the condition of solvothermal and characterized by X-ray single-crystal diffraction, elemental analysis, IR spectra and thermogravimetric (TG) analysis. X-ray single-crystal diffraction analysis exhibits that the complex possesses a uninodal 4-connected 2D (two-dimensional) sql topology framework with the Schlafli symbol (4(4).6(2)). Luminescence studies demonstrate that complex 1 has high selectivity and sensitivity for pollutant Cr(VI) (CrO42-/Cr2O72-) anions and Fe(III) cations. (C) 2019 Elsevier B.V. All rights reserved.