Luminescent properties of Ln(III) complexes with 2-[(phenylamino)methylene]-5,5-dimethyl-cyclohexane-1,3-dione as an antenna

Luminescent properties of Ln(III) complexes with 2-[(phenylamino)methylene]-5,5-dimethyl-cyclohexane-1,3-dione as an antenna Научная публикация

Журнал

Inorganica Chimica Acta
ISSN: 1873-3255 , E-ISSN: 0020-1693

Вых. Данные

Год: 2021, Номер статьи : 525, Страниц : 7 DOI: 10.1016/j.ica.2021.120490

Ключевые слова

Lanthanide complexes, Photoluminescence, β-Diketonate, Enaminone, Crystal structures

Авторы

Smirnova K.S. ¹ , Ivanova E.A. ^1,2 , Sukhikh T.S. ¹ , Pozdnyakov I.P. ^2,3 , Dotsenko V.V. ⁴ , Lider E.V. ¹

Организации

1	Nikolaev Institute of Inorganic Chemistry, SB RAS, 3, Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
2	Novosibirsk State University, 2, Pirogova Str., 630090 Novosibirsk, Russia
3	Voevodsky Institute of Chemical Kinetics and Combustion, SB RAS, Institutskaya 3, 630090 Novosibirsk, Russia
4	Kuban State University, 149, Stavropol’skaya str., 350040 Krasnodar, Russia

Seven lanthanide-based coordination compounds with 2-[(phenylamino)methylene]-5,5-dimethyl-cyclohexane- 1,3-dione were synthesized: [Eu(HL)2(NO3)3] (1), [Sm(HL)2(NO3)3] (2), [Ce(HL)2(NO3)3] (3), [Tm(HL)2Cl3]⋅ H2O (4), [Tb(HL)2Cl3]⋅H2O (5), [Dy(HL)2(H2O)(NO3)3] (6) and [Gd(HL)2Cl3]⋅H2O (7). The obtained Eu(III), Sm (III) and Ce(III) nitrate complexes was established to be isostructural just like Tm(III), Tb(III) and Gd(III) chloride ones. Using X-ray diffraction analysis, the structures of cerium and samarium were determined, which occurred to be polymer chains. On the contrary, the dysprosium compound was mononuclear. Ligand was shown to emit in blue region with quantum yield near 12%. For lanthanide complexes of Eu(III), Sm(III), and Tb(III), during the energy transfer from the ligand triplet state to the central atom, characteristic bands of the metal ion are observed in the emission spectra. The lifetimes and quantum yields of luminescence for these complexes were also determined. For other compounds, no energy transfer is observed due to lower energy of ligand triplet state than corresponding emitting state of the lanthanide ions.

Smirnova K.S. , Ivanova E.A. , Sukhikh T.S. , Pozdnyakov I.P. , Dotsenko V.V. , Lider E.V.
Luminescent properties of Ln(III) complexes with 2-[(phenylamino)methylene]-5,5-dimethyl-cyclohexane-1,3-dione as an antenna
Inorganica Chimica Acta. 2021. 525 :1-7. DOI: 10.1016/j.ica.2021.120490 WOS Scopus РИНЦ OpenAlex

Поступила в редакцию:	29 мар. 2021 г.
Принята к публикации:	2 июн. 2021 г.
Опубликована online:	4 июн. 2021 г.

Web of science:	WOS:000675728800001
Scopus:	2-s2.0-85107748477
РИНЦ:	46813740
OpenAlex:	W3172329086

БД	Цитирований
OpenAlex	14
Web of science	12
Scopus	13
РИНЦ	11