19F NMR based pH probes: Lanthanide(III) complexes with pH-sensitive chemical shifts

Alan M. Kenwright; Ilya Kuprov; Elena De Luca; David Parker; Shashi U. Pandya; P. Kanthi Senanayake; David G. Smith

doi:10.1039/b802838a

¹⁹F NMR based pH probes: Lanthanide(III) complexes with pH-sensitive chemical shifts

Alan M. Kenwright
, Ilya Kuprov
, Elena De Luca
, David Parker^*
, Shashi U. Pandya
, P. Kanthi Senanayake
, David G. Smith

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

83 Citations (Scopus)

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; pK_a 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).

Original language	English
Pages (from-to)	2514-2516
Number of pages	3
Journal	Chemical Communications
Issue number	22
DOIs	https://doi.org/10.1039/b802838a
Publication status	Published - 1 May 2008

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10.1039/b802838a

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title = "19F NMR based pH probes: Lanthanide(III) complexes with pH-sensitive chemical shifts",

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).",

author = "Kenwright, \{Alan M.\} and Ilya Kuprov and \{De Luca\}, Elena and David Parker and Pandya, \{Shashi U.\} and Senanayake, \{P. Kanthi\} and Smith, \{David G.\}",

note = "We thank the EPSRC, the Nuffield Foundation (DGS summer studentship), the Royal Society, Prof. Ross Maxwell for samples of biofluids and the EC network DIMI for support Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2008",

year = "2008",

month = may,

day = "1",

doi = "10.1039/b802838a",

language = "English",

pages = "2514--2516",

journal = "Chemical Communications",

issn = "1359-7345",

publisher = "Royal Society of Chemistry",

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}

TY - JOUR

T1 - 19F NMR based pH probes

T2 - Lanthanide(III) complexes with pH-sensitive chemical shifts

AU - Kenwright, Alan M.

AU - Kuprov, Ilya

AU - De Luca, Elena

AU - Parker, David

AU - Pandya, Shashi U.

AU - Senanayake, P. Kanthi

AU - Smith, David G.

N1 - We thank the EPSRC, the Nuffield Foundation (DGS summer studentship), the Royal Society, Prof. Ross Maxwell for samples of biofluids and the EC network DIMI for support Publisher Copyright: © The Royal Society of Chemistry 2008

PY - 2008/5/1

Y1 - 2008/5/1

N2 - 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).

AB - 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).

UR - https://www.scopus.com/pages/publications/44449160969

UR - https://pubs.rsc.org/en/content/articlelanding/2008/cc/b802838a

U2 - 10.1039/b802838a

DO - 10.1039/b802838a

M3 - Journal article

C2 - 18506228

AN - SCOPUS:44449160969

SN - 1359-7345

SP - 2514

EP - 2516

JO - Chemical Communications

JF - Chemical Communications

IS - 22

ER -

¹⁹F NMR based pH probes: Lanthanide(III) complexes with pH-sensitive chemical shifts

Abstract

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