Jump to main content
Jump to site search

Issue 30, 2017
Previous Article Next Article

A new set of Cd(II)-coordination polymers with mixed ligands of dicarboxylate and pyridyl substituted diaminotriazine: selective sorption towards CO2 and cationic dyes

Author affiliations

Abstract

On the basis of a mixed ligand system of L(NH2)2 (6-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine) and dicarboxylic acids, three new Cd(II) coordination polymers viz. {[Cd0.5(tdc)0.5(L(NH2)2)0.5(H2O)]·DMF·H2O}n (1), {[Cd0.5(bdc)0.5(L(NH2)2)(H2O)]·DMF·H2O}n (2), and {[Cd(ipa)(L(NH2)2)(DMF)]·H2O}n (3) (tdcH2 = thiophene-2,5-dicarboxylic acid, bdcH2 = benzene-1,4-dicarboxylic acid, ipaH2 = benzene-1,3-dicarboxylic acid) were synthesized under diverse reaction conditions and characterized by single crystal X-ray diffraction, PXRD, elemental analysis, IR spectroscopy and TGA. While 1 and 2 revealed 1D chain structures, 3 acquired a 2D square net structural arrangement. Gas adsorption measurements of the desolvated framework 3 showed a moderate uptake of CO2 under ambient conditions with good selectivity over N2 and CH4. The solid state luminescence properties were studied for all three coordination polymers. Moreover, a dye adsorption study on 3 exhibited selective adsorption towards a cationic dye.

Graphical abstract: A new set of Cd(ii)-coordination polymers with mixed ligands of dicarboxylate and pyridyl substituted diaminotriazine: selective sorption towards CO2 and cationic dyes

Back to tab navigation

Supplementary files

Publication details

The article was received on 06 May 2017, accepted on 28 Jun 2017 and first published on 28 Jun 2017


Article type: Paper
DOI: 10.1039/C7DT01657C
Citation: Dalton Trans., 2017,46, 9901-9911
  •   Request permissions

    A new set of Cd(II)-coordination polymers with mixed ligands of dicarboxylate and pyridyl substituted diaminotriazine: selective sorption towards CO2 and cationic dyes

    S. Chand, S. M. Elahi, A. Pal and M. C. Das, Dalton Trans., 2017, 46, 9901
    DOI: 10.1039/C7DT01657C

Search articles by author

Spotlight

Advertisements