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Investigating the effect of positional isomerism on the assembly of zirconium phosphonates based on tritopic linkers
Steve Shearan 
,
Marco Taddei ,
Stephen J. I. Shearan,
Anna Donnadio,
Mario Casciola,
Riccardo Vivani,
Ferdinando Costantino
,
Marco Taddei ,
Stephen J. I. Shearan,
Anna Donnadio,
Mario Casciola,
Riccardo Vivani,
Ferdinando Costantino
Dalton Transactions
Swansea University Authors:
Steve Shearan , Marco Taddei
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DOI (Published version): 10.1039/C9DT02463H
Abstract
We report on the use of a novel tritopic phosphonic linker, 2,4,6-tris[3-(phosphonomethyl)phenyl]-1,3,5-triazine, for the synthesis of a layered zirconium phosphonate, named UPG-2. Comparison with the structure of the permanently porous UPG-1, based on the related linker 2,4,6-tris[4-(phosphonomethy...
| Published in: | Dalton Transactions |
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| ISSN: | 1477-9226 1477-9234 |
| Published: |
2020
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa51415 |
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| Abstract: |
We report on the use of a novel tritopic phosphonic linker, 2,4,6-tris[3-(phosphonomethyl)phenyl]-1,3,5-triazine, for the synthesis of a layered zirconium phosphonate, named UPG-2. Comparison with the structure of the permanently porous UPG-1, based on the related linker 2,4,6-tris[4-(phosphonomethyl)phenyl]-1,3,5-triazine, reveals that positional isomerism disrupts the porous architecture in UPG-2 by preventing the formation of infinitely extended chains connected through Zr–O–P–O–Zr bonds. The presence of free, acidic P–OH groups and an extended network of hydrogen bonds makes UPG-2 a good proton conductor, reaching values as high as 5.7 × 10−4 S cm−1. |
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