Ln(III) Complexes with a Chiral 1H-Pyrazolo[3,4-b]pyridine Derivative Fused with a (−)-α-Pinene Moiety: Synthesis, Crystal Structure, and Photophysical Studies in Solution and in the Solid State | Sciact - CRIS-system of Boreskov Institute of Catalysis

Ln(III) Complexes with a Chiral 1H-Pyrazolo[3,4-b]pyridine Derivative Fused with a (−)-α-Pinene Moiety: Synthesis, Crystal Structure, and Photophysical Studies in Solution and in the Solid State Full article

Journal

New Journal of Chemistry
ISSN: 1144-0546 , E-ISSN: 1369-9261

Output data

Year: 2021, Volume: 45, Number: 4, Pages: 2276-2284 Pages count : 9 DOI: 10.1039/d0nj05277a

Tags

Acetonitrile; Crystal structure; Electronic structure; Energy transfer; Ligands; Luminescence; Monoterpenes; Olefins; Pyridine; Quantum theory; Quantum yield; Rare earth elements; Synthesis (chemical)

Authors

Bryleva Yuliya A. ^1,2 , Ustimenko Yuliya P. ³ , Plyusnin Victor F. ^2,4 , Mikheilis Alexsandr V. ⁴ , Shubin Aleksandr A. ^2,5 , Glinskaya Ludmila A. ¹ , Komarov Vladislav Yu. ^1,2 , Agafontsev Alexander M. ^2,3 , Tkachev Alexey V. ^2,3

Affiliations

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3, Acad. Lavrentiev Ave., Novosibirsk 630090, Russia
2	Novosibirsk State University, 2, Pirogova Str., 630090 Novosibirsk, Russia
3	Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 9, Acad. Lavrentiev Ave., Novosibirsk 630090, Russia
4	Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, 3, Institutskaya Str., Novosibirsk 630090, Russia
5	Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 5, Acad. Lavrentiev Ave., Novosibirsk 630090, Russia

Funding (2)

1	Russian Foundation for Basic Research	17-03-00252
2	Russian Science Foundation	18-13-00246

Chiral lanthanide(III) complexes, [LnL2(NO3)3]·MeCN (Ln = Sm (1), Eu (2), Tb (3)), containing an optically active 1H-pyrazolo[3,4-b]pyridine derivative fused with a natural monoterpene (−)-α-pinene moiety (L) have been synthesized and structurally characterized. The mononuclear complexes 1–3 are isostructural and crystallize in the non-centrosymmetric space group P21212. The lanthanide ions are ten-coordinated with three bidentate chelating nitrate ions and two bidentate N,N-donor ligands L. Complexes 1–3 show metal-centered luminescence at room temperature in solution and in the solid state. The solid-state and solution-phase luminescence quantum yields increase in the order 1 < 2 < 3. Complex 3 possesses a very high luminescence quantum yield both in acetonitrile solution (φf = 0.736) and in the solid state (φf = 0.890), indicating efficient energy transfer from two ligands L to the Ln center. The luminescence quantum yields of complexes 1 and 2 in the acetonitrile solutions are almost two and four times higher, respectively, than those in the solid state. DFT and TD-DFT studies were carried out to explore geometry and electronic structure of L and to gain insight into its absorption properties.

Bryleva Y.A. , Ustimenko Y.P. , Plyusnin V.F. , Mikheilis A.V. , Shubin A.A. , Glinskaya L.A. , Komarov V.Y. , Agafontsev A.M. , Tkachev A.V.
Ln(III) Complexes with a Chiral 1H-Pyrazolo[3,4-b]pyridine Derivative Fused with a (−)-α-Pinene Moiety: Synthesis, Crystal Structure, and Photophysical Studies in Solution and in the Solid State
New Journal of Chemistry. 2021. V.45. N4. P.2276-2284. DOI: 10.1039/d0nj05277a WOS Scopus РИНЦ AN OpenAlex

Submitted:	Oct 27, 2020
Accepted:	Dec 30, 2020
Published online:	Jan 12, 2021
Published print:	Jan 28, 2021

Web of science:	WOS:000613637800059
Scopus:	2-s2.0-85100276943
Elibrary:	44964173
Chemical Abstracts:	2021:96389
OpenAlex:	W3120477447

DB	Citing
Scopus	9
Web of science	8
Elibrary	10
OpenAlex	7