TY - JOUR
T1 - A Preparative and Solution Study of a Modified β-Cyclodextrin and its Europium(III) Complex, and their Interactions with Racemic Amino Acid Anions
AU - Kean, Suzanna D.
AU - Easton, Christopher J.
AU - Lincoln, Stephen F.
AU - Parker, David
PY - 2001
Y1 - 2001
N2 - The synthesis and characterization of 6A-deoxy-6 A-(1,4,7-tri(carboxylatomethyl)-1,4,7,10-tetraazacyclododecan-10-yl)- β-cyclodextrin (1b) are reported. A fluorescence lifetime study of its Eu3+ complex (1c) is consistent with one water coordinating Eu3+ in addition to hepta-coordination by (1b). 1H NMR studies are consistent with (1b) forming host-guest complexes with (R/S)-histidinate (2a), (R/S)-tyrosinate (2b), (R/S)-phenylalaninate (2c), and (R/S)-tryptophanate (2d), with enantioselectivity shown for (2b). Similar studies are consistent with (1c) complexing (2a-d), with enantioselectivity shown for (2a).
AB - The synthesis and characterization of 6A-deoxy-6 A-(1,4,7-tri(carboxylatomethyl)-1,4,7,10-tetraazacyclododecan-10-yl)- β-cyclodextrin (1b) are reported. A fluorescence lifetime study of its Eu3+ complex (1c) is consistent with one water coordinating Eu3+ in addition to hepta-coordination by (1b). 1H NMR studies are consistent with (1b) forming host-guest complexes with (R/S)-histidinate (2a), (R/S)-tyrosinate (2b), (R/S)-phenylalaninate (2c), and (R/S)-tryptophanate (2d), with enantioselectivity shown for (2b). Similar studies are consistent with (1c) complexing (2a-d), with enantioselectivity shown for (2a).
UR - http://www.scopus.com/inward/record.url?scp=0013446807&partnerID=8YFLogxK
U2 - 10.1071/CH01102
DO - 10.1071/CH01102
M3 - Article
SN - 0004-9425
VL - 54
SP - 535
EP - 539
JO - Australian Journal of Chemistry
JF - Australian Journal of Chemistry
IS - 8
ER -