Structural, electrochemical, and adsorption studies of Ni and Zn benzylimidazole coordination polymers with terephthalate linkers

Bibi Sherino, Sharifah Mohamad, Ninie Suhana Abdul Manan, Huma Tareen, Bohari Mohd. Yamin, Siti Nadiah Abdul Halim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Two coordination polymers, [Ni(bim)2(L1)(H2O)2]n (CP-1) and [Zn(bim)(L1)(Cl)]n (CP-2) (bim = 1-benzylimidazole, L1 = terephthalic acid), were synthesized and characterized by physicochemical and spectroscopic methods. The Ni(II) center in CP-1 is octahedral, while the Zn(II) center in CP-2 is tetrahedral. CP-1 and CP-2 were used to modify carbon paste electrodes to assess their effect on the electrochemical behavior of ferricyanide. The redox reactions of ferricyanide on both electrodes proved to be reversible and diffusion controlled, with ferricyanide diffusion coefficients for CP-1 and CP-2 of 1.88 × 105 and 3.44 × 105 cm2 s−1, respectively. These coordination polymers were also investigated for their adsorption behavior toward two dyes: Chicago sky blue and methylene blue. CP-1 and CP-2 both rapidly adsorbed the anionic Chicago sky blue dye by different intermolecular interactions; in contrast, the cationic methylene blue dye was adsorbed to a lesser extent. The adsorption of these CPs depends on the charge but not the size of the dye. Addition of methanolic potassium nitrate solution caused the release of the adsorbed dyes.

Original languageEnglish
Pages (from-to)1-12
Number of pages12
JournalTransition Metal Chemistry
DOIs
Publication statusAccepted/In press - 28 Nov 2017
Externally publishedYes

Fingerprint

Polymers
Coloring Agents
Dyes
Adsorption
Methylene Blue
Electrodes
Redox reactions
Ointments
Potassium
Nitrates
Carbon
terephthalic acid
Acids
hexacyanoferrate III
pontamine sky blue

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Metals and Alloys
  • Materials Chemistry

Cite this

Structural, electrochemical, and adsorption studies of Ni and Zn benzylimidazole coordination polymers with terephthalate linkers. / Sherino, Bibi; Mohamad, Sharifah; Abdul Manan, Ninie Suhana; Tareen, Huma; Mohd. Yamin, Bohari; Abdul Halim, Siti Nadiah.

In: Transition Metal Chemistry, 28.11.2017, p. 1-12.

Research output: Contribution to journalArticle

Sherino, Bibi ; Mohamad, Sharifah ; Abdul Manan, Ninie Suhana ; Tareen, Huma ; Mohd. Yamin, Bohari ; Abdul Halim, Siti Nadiah. / Structural, electrochemical, and adsorption studies of Ni and Zn benzylimidazole coordination polymers with terephthalate linkers. In: Transition Metal Chemistry. 2017 ; pp. 1-12.
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AU - Mohd. Yamin, Bohari

AU - Abdul Halim, Siti Nadiah

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