Proton‐Conducting Hydrogen‐Bonded 3D Frameworks of Imidazo‐Pyridine‐Based Coordination Complexes Containing Naphthalene Disulfonates in Rhomboid Channels

Coordination complexes of an olefinic molecule (PIP) containing pyridine and imidazopyridine moieties with ZnII/NiII metal salts were shown to exhibit appreciable proton conductivity. These complexes form 3D‐hydrogen bonded frameworks containing rhomboidal channels that are occupied by uncoordinated...

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Bibliographic Details
Published in:Chemistry, an Asian journal an Asian journal, 2019-12, Vol.14 (23), p.4389-4394
Main Authors: Garai, Abhijit, Kumar, Anaparthi Ganesh, Banerjee, Susanta, Biradha, Kumar
Format: Article
Language:English
Subjects:
Channels
Chemistry
coordination complexes
Coordination compounds
Hydrogen bonding
hydrogen-bonded frameworks
imidazo-pyridine
Naphthalene
naphthalenedisulfonate
Proton conduction
proton conductivity
Thermal stability
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Summary:Coordination complexes of an olefinic molecule (PIP) containing pyridine and imidazopyridine moieties with ZnII/NiII metal salts were shown to exhibit appreciable proton conductivity. These complexes form 3D‐hydrogen bonded frameworks containing rhomboidal channels that are occupied by uncoordinated 1,5‐naphthalenedisulfonate (NDS). The extensive hydrogen bonding between the frameworks and NDS resulted in thermally stable and water‐insoluble materials. Irrespective of the metal atom present, both complexes exhibited moderate to high proton conduction in the range of 10−5 to 0.5×10−3 S cm−1 depending on the temperature and humidity levels. Hydrogen‐bonded frameworks of imidazopyridine‐based coordination complexes containing naphthalenedisulfonates in channels have been explored as efficient and stable proton conductors.
ISSN:1861-4728
1861-471X
DOI:10.1002/asia.201901338