Fabrication of a one-dimensional copper(I) cyanide bearing 4,4′-bis(imidazoly)biphenyl) polymer as a recyclable luminescent sensing material for sensitive detection of nitrofurazone

A new cyanide-bridged coordination polymer with formula {[Cu-2(1)(CN)(bb)(2)]center dot NO3 center dot H2O} n (1) (bb = 4,4'-bis(imidazoly)biphenyl), has been synthesized and characterized by microanalyses, FTIR and single crystal X-ray diffraction. The single crystal X-ray studied indicated that 1 possesses a parallel one-dimensional (1D) chain, which is woven to produce a 2D supramolecular architecture held by pi center dot center dot center dot pi interactions between imidazolyl rings and phenyl rings with separation of 3.873 angstrom and 3.789 angstrom, respectively. The photoluminescence sensing investigation on 1 revealed that it could be used as a recyclable fluorescent sensor for antibiotics and the polymer offers sensitive and selective detection of nitrofurazone (NFZ), with high K-SV value (1.01 x10(3) M-1) and low detection limit (1.53 ppm). The plausible mechanism using which the CP exhibited sensing of antibiotics has been proposed using theoretical calculations. (c) 2022 Elsevier B.V. All rights reserved.

Automated summary

A new cyanide-bridged coordination polymer has been synthesized and characterized, showing sensitive and selective detection of nitrofurazone in photoluminescence sensing. The mechanism behind the sensing ability has been proposed using theoretical calculations.