19F NMR based pH probes: lanthanide(iii) complexes with pH-sensitive chemical shifts
19F NMR based pH probes: lanthanide(iii) complexes with pH-sensitive chemical shifts
Experimental measurements and theoretical analysis of magnetic properties, structural dynamics and acid–base equilibria for several lanthanide(III) complexes with tetraazacyclododecane derivatives as 19F NMR chemical shift pH probes are presented; pKa values vary between 6.9 and 7.7, with 18 to 40 ppm chemical shift differences between the acidic and basic forms for Ho(III) complexes possessing T1 values of 10 to 30 ms (4.7–9.4 T, 295 K).
2514-2516
Kenwright, Alan M.
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Kuprov, Ilya
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De Luca, Elena
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Parker, David
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Pandya, Shashi U.
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Senanayake, P. Kanthi
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Smith, David G.
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1 May 2008
Kenwright, Alan M.
e296cc0d-4649-4ce2-9076-e9e0a0e76e73
Kuprov, Ilya
bb07f28a-5038-4524-8146-e3fc8344c065
De Luca, Elena
c509928a-2cdc-40d6-962b-40cd9d180dc6
Parker, David
31bfb567-907a-4490-af57-411089ae0e73
Pandya, Shashi U.
51b9c102-9a9c-422e-bfe4-62adadc3b976
Senanayake, P. Kanthi
27b679b9-b559-4f57-bf23-8594c31654c1
Smith, David G.
563791c5-956d-46c1-b59b-ce80d15e939a
Kenwright, Alan M., Kuprov, Ilya, De Luca, Elena, Parker, David, Pandya, Shashi U., Senanayake, P. Kanthi and Smith, David G.
(2008)
19F NMR based pH probes: lanthanide(iii) complexes with pH-sensitive chemical shifts.
Chemical Communications, (22), .
(doi:10.1039/B802838A).
Abstract
Experimental measurements and theoretical analysis of magnetic properties, structural dynamics and acid–base equilibria for several lanthanide(III) complexes with tetraazacyclododecane derivatives as 19F NMR chemical shift pH probes are presented; pKa values vary between 6.9 and 7.7, with 18 to 40 ppm chemical shift differences between the acidic and basic forms for Ho(III) complexes possessing T1 values of 10 to 30 ms (4.7–9.4 T, 295 K).
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Published date: 1 May 2008
Organisations:
Computational Systems Chemistry
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Local EPrints ID: 337121
URI: http://eprints.soton.ac.uk/id/eprint/337121
ISSN: 1359-7345
PURE UUID: 9a88854c-f127-44e9-987e-d9867bb413ef
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Date deposited: 19 Apr 2012 12:36
Last modified: 15 Mar 2024 03:43
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Contributors
Author:
Alan M. Kenwright
Author:
Elena De Luca
Author:
David Parker
Author:
Shashi U. Pandya
Author:
P. Kanthi Senanayake
Author:
David G. Smith
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