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Ln(III) complexes (Ln = Eu, Gd, Tb, Dy) with a chiral ligand containing 1,10-phenanthroline and (-)-menthol fragments : Synthesis, structure, magnetic properties and photoluminescence. / Larionov, Stanislav V.; Bryleva, Yuliya A.; Glinskaya, Ludmila A. и др.
в: Dalton Transactions, Том 46, № 34, 29.08.2017, стр. 11440-11450.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Ln(III) complexes (Ln = Eu, Gd, Tb, Dy) with a chiral ligand containing 1,10-phenanthroline and (-)-menthol fragments
T2 - Synthesis, structure, magnetic properties and photoluminescence
AU - Larionov, Stanislav V.
AU - Bryleva, Yuliya A.
AU - Glinskaya, Ludmila A.
AU - Plyusnin, Victor F.
AU - Kupryakov, Arkady S.
AU - Agafontsev, Alexander M.
AU - Tkachev, Alexey V.
AU - Bogomyakov, Artem S.
AU - Piryazev, Dmitry A.
AU - Korolkov, Ilya V.
PY - 2017/8/29
Y1 - 2017/8/29
N2 - A series of lanthanide(iii) complexes based on the new chiral ligand L, which contains 1,10-phenanthroline and (-)-menthol fragments, namely [LnL2(NO3)3] (Ln = Eu (1), Gd (2), Tb (3), Dy (4)), have been synthesized and structurally characterized. Complexes 1-4 are isostructural and crystallize in the non-centrosymmetric space group P41212. The mononuclear complexes comprise a 10-coordinate Ln3+ ion with two bidentate N,N-donor ligands (L) and three bidentate chelating nitrate groups. The magnetic properties of complexes 1-4 are determined mainly by the Ln3+ ions. In the case of complexes 3 and 4, significant anisotropy results in nonlinear field dependences of magnetization at low temperature. Complexes 1, 3 and 4 exhibit metal-centered red (Eu3+), green (Tb3+) and yellow (Dy3+) luminescence, respectively, whereas complex 2 displays blue ligand-based luminescence in the solid state at room temperature. The luminescence quantum yield for the solid samples increases in the order 4 < 2 ≈ 3 < 1. The europium(iii) complex shows long luminescence lifetimes (up to 1750 μs) and a very high quantum yield (φf = 0.87); these make this compound promising for application in sensing and optoelectronics.
AB - A series of lanthanide(iii) complexes based on the new chiral ligand L, which contains 1,10-phenanthroline and (-)-menthol fragments, namely [LnL2(NO3)3] (Ln = Eu (1), Gd (2), Tb (3), Dy (4)), have been synthesized and structurally characterized. Complexes 1-4 are isostructural and crystallize in the non-centrosymmetric space group P41212. The mononuclear complexes comprise a 10-coordinate Ln3+ ion with two bidentate N,N-donor ligands (L) and three bidentate chelating nitrate groups. The magnetic properties of complexes 1-4 are determined mainly by the Ln3+ ions. In the case of complexes 3 and 4, significant anisotropy results in nonlinear field dependences of magnetization at low temperature. Complexes 1, 3 and 4 exhibit metal-centered red (Eu3+), green (Tb3+) and yellow (Dy3+) luminescence, respectively, whereas complex 2 displays blue ligand-based luminescence in the solid state at room temperature. The luminescence quantum yield for the solid samples increases in the order 4 < 2 ≈ 3 < 1. The europium(iii) complex shows long luminescence lifetimes (up to 1750 μs) and a very high quantum yield (φf = 0.87); these make this compound promising for application in sensing and optoelectronics.
KW - LUMINESCENT EUROPIUM
KW - CRYSTAL-STRUCTURES
KW - ENERGY-TRANSFER
KW - DESIGN
KW - PR
KW - SM
UR - http://www.scopus.com/inward/record.url?scp=85028680481&partnerID=8YFLogxK
U2 - 10.1039/c7dt01536d
DO - 10.1039/c7dt01536d
M3 - Article
C2 - 28816308
AN - SCOPUS:85028680481
VL - 46
SP - 11440
EP - 11450
JO - Dalton Transactions
JF - Dalton Transactions
SN - 1477-9226
IS - 34
ER -
ID: 9916994