TY - JOUR
T1 - Evaluation of the binding constants, bound chemical shifts, and equilibrium stoichiometry for the association of lanthanide shift reagents with carbohydrate derivatives
AU - Arduini, Anita
AU - Armitage, Ian M.
AU - Hall, Laurance D.
AU - Marshall, Alan G.
N1 - Funding Information:
This work was supported by operating grants from the National Research Council of Canada (A 1905 to L. D. H. and A 6178 to A. G. M.), and by funds from the Alfred P. Sloan Foundation.
PY - 1973/12
Y1 - 1973/12
N2 - The molecular associations of tris(dipivalomethanato)europium(III) (1) and of tris(2,2-dimethyl-6,6,7,7,8,8,8,-heptafluoro-3,5-octanedionato)europium(III) (2) with six carbohydrate derivatives have been studied. The interactions of 2 in deuterochloroform solution appear to be "normal", i.e., the plot of [sugar concentration] versus [induced chemical-shift change]-1 is linear and can be interpreted in terms of the equilibrium binding constant (KB) and the bound chemical shifts (°B). Similar results are found for 1 in carbon tetrachloride solutions. However, in chloroform solutions, non-linear plots are obtained that cannot be simply interpreted. Possible reasons for this behaviour are given.
AB - The molecular associations of tris(dipivalomethanato)europium(III) (1) and of tris(2,2-dimethyl-6,6,7,7,8,8,8,-heptafluoro-3,5-octanedionato)europium(III) (2) with six carbohydrate derivatives have been studied. The interactions of 2 in deuterochloroform solution appear to be "normal", i.e., the plot of [sugar concentration] versus [induced chemical-shift change]-1 is linear and can be interpreted in terms of the equilibrium binding constant (KB) and the bound chemical shifts (°B). Similar results are found for 1 in carbon tetrachloride solutions. However, in chloroform solutions, non-linear plots are obtained that cannot be simply interpreted. Possible reasons for this behaviour are given.
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U2 - 10.1016/S0008-6215(00)86190-X
DO - 10.1016/S0008-6215(00)86190-X
M3 - Article
AN - SCOPUS:0040028060
VL - 31
SP - 255
EP - 263
JO - Carbohydrate Research
JF - Carbohydrate Research
SN - 0008-6215
IS - 2
ER -