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

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 Full article

Journal

Dalton Transactions
ISSN: 1477-9226 , E-ISSN: 1477-9234

Output data

Year: 2017, Volume: 46, Number: 34, Pages: 11440-11450 Pages count : 11 DOI: 10.1039/c7dt01536d

Authors

Larionov Stanislav V. ^1,5 , Bryleva Yuliya A. ¹ , Glinskaya Ludmila A. ¹ , Plyusnin Victor F. ^2,5 , Kupryakov Arkady S. ² , Agafontsev Alexander M. ^3,5 , Tkachev Alexey V. ^3,5 , Bogomyakov Artem S. ⁴ , Piryazev Dmitry A. ^1,5 , Korolkov Ilya V. ^1,5

Affiliations

1	(Данные Web of science) Russian Acad Sci, Siberian Branch, Nikolaev Inst Inorgan Chem, 3 Acad Lavrentiev Ave, Novosibirsk 630090, Russia
2	(Данные Web of science) Russian Acad Sci, Siberian Branch, Inst Chem Kinet & Combust, 3 Inst Skaya Str, Novosibirsk 630090, Russia
3	(Данные Web of science) Russian Acad Sci, Siberian Branch, Vorozhtsov Novosibirsk Inst Organ Chem, 9 Acad Lavrentiev Ave, Novosibirsk 630090, Russia
4	(Данные Web of science) Russian Acad Sci, Siberian Branch, Int Tomog Ctr, 3a Inst Skaya Str, Novosibirsk 630090, Russia
5	(Данные Web of science) Novosibirsk State Univ, 2 Pirogova Str, Novosibirsk 630090, Russia

A series of lanthanide(III) complexes based on the new chiral ligand L, which contains 1,10-phenanthroline and (-)-menthol fragments, namely [LnL(2)(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 P4(1)2(1)2. The mononuclear complexes comprise a 10-coordinate Ln(3+) 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 Ln(3+) 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 approximate to 3 < 1. The europium(III) complex shows long luminescence lifetimes (up to 1750 mu s) and a very high quantum yield (phi(f) = 0.87); these make this compound promising for application in sensing and optoelectronics.

Larionov S.V. , Bryleva Y.A. , Glinskaya L.A. , Plyusnin V.F. , Kupryakov A.S. , Agafontsev A.M. , Tkachev A.V. , Bogomyakov A.S. , Piryazev D.A. , Korolkov I.V.
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
Dalton Transactions. 2017. V.46. N34. P.11440-11450. DOI: 10.1039/c7dt01536d WOS Scopus РИНЦ

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