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Inorg Chem. 2015 Jun 01;54(11):5366-71. doi: 10.1021/acs.inorgchem.5b00416. Epub 2015 May 18.

Coherent fusion of water array and protonated amine in a metal-sulfate-based coordination polymer for proton conduction.

Inorganic chemistry

Biplab Manna, Bihag Anothumakkool, Aamod V Desai, Partha Samanta, Sreekumar Kurungot, Sujit K Ghosh

Affiliations

  1. †Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune 411 008, India.
  2. ‡Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory (NCL),Pune 411 008, India.
  3. §Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110 001, India.

PMID: 25985048 DOI: 10.1021/acs.inorgchem.5b00416

Abstract

A new function of metal-sulfate-based coordination polymer (CP) for proton conduction was investigated through rational integration of a continuous water array and protonated amine in the coordination space of the CP. The H-bonded arrays of water molecules along with nitrogen-rich aromatic cation (protonated melamine) facilitate proton conduction in the compound under humid conditions. Although several reports of metal-oxalate/phosphate-based CPs showing proton conduction are known, this is the first designed synthesis of a metal-sulfate-based CP bearing water arrays functioning as a solid-state proton conductor.

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