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Rahaman SA, Roy B, Mandal S, et al. A Kamikaze Approach for Capturing Hg(2+) Ions through the Formation of a One-Dimensional Metal-Organometallic Polymer. Inorg Chem. 2016;55(3):1069-75doi: 10.1021/acs.inorgchem.5b02104.
Rahaman, S. A., Roy, B., Mandal, S., & Bandyopadhyay, S. (2016). A Kamikaze Approach for Capturing Hg(2+) Ions through the Formation of a One-Dimensional Metal-Organometallic Polymer. Inorganic chemistry, 55(3), 1069-75. https://doi.org/10.1021/acs.inorgchem.5b02104
Rahaman, Sk Atiur, et al. "A Kamikaze Approach for Capturing Hg(2+) Ions through the Formation of a One-Dimensional Metal-Organometallic Polymer." Inorganic chemistry vol. 55,3 (2016): 1069-75. doi: https://doi.org/10.1021/acs.inorgchem.5b02104
Rahaman SA, Roy B, Mandal S, Bandyopadhyay S. A Kamikaze Approach for Capturing Hg(2+) Ions through the Formation of a One-Dimensional Metal-Organometallic Polymer. Inorg Chem. 2016 Feb 01;55(3):1069-75. doi: 10.1021/acs.inorgchem.5b02104. Epub 2016 Jan 19. PMID: 26784576.
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Inorg Chem. 2016 Feb 01;55(3):1069-75. doi: 10.1021/acs.inorgchem.5b02104. Epub 2016 Jan 19.

A Kamikaze Approach for Capturing Hg(2+) Ions through the Formation of a One-Dimensional Metal-Organometallic Polymer.

Inorganic chemistry

Sk Atiur Rahaman, Biswajit Roy, Soumik Mandal, Subhajit Bandyopadhyay

Affiliations

  1. Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) , Kolkata Mohanpur, Nadia, West Bengal 741246, India.

PMID: 26784576 DOI: 10.1021/acs.inorgchem.5b02104

Abstract

Efficient uptake of Hg(2+) ions in mercury-resistant bacteria is attributed to the presence of cysteine thiolates in the Mer proteins. In this work, a pyridine-appended pyridine-fused imidazolyl-2-thione scaffold was used as a mimic for the cysteinyl residues for efficient binding of the Hg(2+) ions. In the presence of Hg(2+) ions, an aryl C-H bond of the ligand is activated. The sulfur and nitrogen donors on the other end of the ligand coordinate with a second Hg(2+) ion. This motif in the presence of acetate ions forms a one-dimensional polymeric crystalline network characterized by singal-crystal X-ray diffraction studies. The formation of this polymeric structure leads to efficient removal (∼99%) of Hg(2+) ions from aqueous solutions through an underexplored "kamikaze" approach involving a small-molecule ligand as a sacrificial agent for trapping the ion.

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