Sterically crowded phenanthrolinediamides: conformational behavior and photophysics of their complexes with an Eu–Gd–Tb triad

Sterically crowded phenanthrolinediamides: conformational behavior and photophysics of their complexes with an Eu–Gd–Tb triad Научная публикация

Журнал

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

Вых. Данные

Год: 2026, DOI: 10.1039/d5dt02745d

Авторы

Avagyan Nane A. ¹ , Zonov Roman V. ¹ , Lemport Pavel S. ¹ , Polikovskiy Trofim A. ^2,3 , Metlin Mikhail T. ^4,3 , Taydakov Ilya V. ³ , Averin Alexei D. ¹ , Roznyatovsky Vitaly A. ¹ , Simochkina Anastasia I. ¹ , Danshina Anastasia A. ⁵ , Nelyubina Yulia V. ⁶ , Vokuev Mikhail F. ¹ , Rodin Igor A. ¹ , Ustynyuk Yuri A. ¹ , Nenajdenko Valentine G. ¹

Организации

1	Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1 bld. 3, 119991 Moscow, Russia
2	Moscow Institute of Physics and Technology, Institutsky lane 9, Dolgoprudny, 141700 Moscow region, Russia
3	P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy Prospekt, 119991 Moscow, Russia
4	Bauman Moscow State Technical University, 5/1 2-ya Baumanskaya Str., 105005 Moscow, Russia
5	N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russia
6	Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russian Federation

Three positional isomers of alkyl-aryl-substituted 1,10-phenanthroline-2,9-dicarboxamides (DAPhens) were synthesized and investigated. Using quantum chemical modeling, the difference in the conformational behavior of new DAPhens and their complexes characterized by the presence of alkyl substituents in the aryl fragment of the amide function was demonstrated. The coordination chemistry of the synthesized diamides has been studied in detail using spectroscopic methods and X-ray diffraction analysis. Complex compounds of DAPhens with trinitrates of selected rare-earth elements, including europium, gadolinium and terbium, were synthesized. The photophysical properties of these complex compounds were examined, revealing that the highest quantum yield is achieved for the complex containing symmetric 2,6-dimethylphenyl-DAPhen.

Avagyan N.A. , Zonov R.V. , Lemport P.S. , Polikovskiy T.A. , Metlin M.T. , Taydakov I.V. , Averin A.D. , Roznyatovsky V.A. , Simochkina A.I. , Danshina A.A. , Nelyubina Y.V. , Vokuev M.F. , Rodin I.A. , Ustynyuk Y.A. , Nenajdenko V.G.
Sterically crowded phenanthrolinediamides: conformational behavior and photophysics of their complexes with an Eu–Gd–Tb triad
Dalton Transactions. 2026. DOI: 10.1039/d5dt02745d WOS Scopus OpenAlex

Поступила в редакцию:	16 нояб. 2025 г.
Опубликована в печати:	20 янв. 2026 г.

Web of science:	WOS:001675293800001
Scopus:	2-s2.0-105030521076
OpenAlex:	W7124848259

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