Inherent Proton Conduction in a 2D Coordination Framework

We synthesized a coordination polymer consisting of Zn2+, 1,2,4-triazole, and orthophosphates, and demonstrated for the first time intrinsic proton conduction by a coordination network. The compound has a two-dimensional layered structure with extended hydrogen bonds between the layers. It shows int...

Full description

Saved in:
Bibliographic Details
Published inJournal of the American Chemical Society Vol. 134; no. 30; pp. 12780 - 12785
Main Authors Umeyama, Daiki, Horike, Satoshi, Inukai, Munehiro, Itakura, Tomoya, Kitagawa, Susumu
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 01.08.2012
Subjects
activation energy
coordination polymers
crystals
hydrogen bonding
ligands
orthophosphates
zinc
Online AccessGet full text

Cover

More Information
Summary:We synthesized a coordination polymer consisting of Zn2+, 1,2,4-triazole, and orthophosphates, and demonstrated for the first time intrinsic proton conduction by a coordination network. The compound has a two-dimensional layered structure with extended hydrogen bonds between the layers. It shows intrinsic proton conductivity along the direction parallel to the layers, as elucidated by impedance studies of powder and single crystals. From the low activation energy for proton hopping, the conduction mechanism was found to be of the Grotthuss fashion. The hopping is promoted by rotation of phosphate ligands, which are aligned on the layers at appropriate intervals.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0002-7863
1520-5126
1520-5126
DOI:10.1021/ja304693r