TY - JOUR
T1 - Diastereoselective formation of luminescent dinuclear lanthanide(iii) helicates with enantiomerically pure tartaric acid derived bis(β-diketonate) ligands
AU - Albrecht, M
AU - Schmid, S
AU - Dehn, S
AU - Wickleder, C
AU - Zhang, S
AU - Bassett, AP
AU - Pikramenou, Zoe
AU - Fröhlich, R
PY - 2007
Y1 - 2007
N2 - The chiral tartaric acid derived bis(β-diketonate) ligands 1–3-H2 diastereoselectively form dinuclear triple-stranded helicates with a series of lanthanide(III) ions (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb), which bind water molecules as additional co-ligands. In the cases of europium(III) and terbium(III) ions, bright red or green luminescence is observed, respectively. Hereby the energy transfer from the ligand to the metal is most effective with the bromophenyl-substituted ligand 3-H2. Reaction of 3-H2 with europium(III) in a 4 : 2 ratio results in a highly luminescent quadruple-stranded dinuclear complex [34Eu2]2–.
AB - The chiral tartaric acid derived bis(β-diketonate) ligands 1–3-H2 diastereoselectively form dinuclear triple-stranded helicates with a series of lanthanide(III) ions (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb), which bind water molecules as additional co-ligands. In the cases of europium(III) and terbium(III) ions, bright red or green luminescence is observed, respectively. Hereby the energy transfer from the ligand to the metal is most effective with the bromophenyl-substituted ligand 3-H2. Reaction of 3-H2 with europium(III) in a 4 : 2 ratio results in a highly luminescent quadruple-stranded dinuclear complex [34Eu2]2–.
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-35148843765&partnerID=MN8TOARS
U2 - 10.1039/b705090a
DO - 10.1039/b705090a
M3 - Article
SN - 1369-9261
SN - 1369-9261
SN - 1369-9261
SN - 1369-9261
SN - 1369-9261
SN - 1369-9261
VL - 31
SP - 1755
EP - 1762
JO - New Journal of Chemistry
JF - New Journal of Chemistry
IS - 10
ER -