Luminescent Polymorphism of Mononuclear Cu(I) Complexes with Pyrazolo[1,5-a][1,10]phenanthrolines | Sciact - CRIS-system of Boreskov Institute of Catalysis

Luminescent Polymorphism of Mononuclear Cu(I) Complexes with Pyrazolo[1,5-a][1,10]phenanthrolines Full article

Journal

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

Output data

Year: 2023, Volume: 555, Article number : 121604, Pages count : 13 DOI: 10.1016/j.ica.2023.121604

Tags

Copper compounds; Ligands; Luminescence; Single crystals

Authors

Malakhova Julia A. ² , Berezin Aleksey S. ¹ , Glebov Evgeni M. ^2,3 , Sannikova Viktoriya A. ⁴ , Vorob'ev Aleksey Yu. ^3,4 , Pervukhina Natalia V. ¹ , Naumov Dmitrii Yu. ¹ , Kolybalov Dmitry S. ³ , Syrokvashin Mikhail M. ¹ , Vinogradova Katerina A. ¹

Affiliations

1	Nikolaev Institute of Inorganic c, Russian Academy of Sciences, 3, Acad. Lavrentiev Ave, Novosibirsk 630090, Russia
2	Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of Russian Academy of Sciences, 3, Institutskaya Str, Novosibirsk 630090, Russia
3	Novosibirsk State University (National Research University), 2, Pirogova str, Novosibirsk 630090, Russia
4	Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, 9, Acad. Lavrentiev Ave, Novosibirsk 630090, Russia

Six copper(I) complex compounds with new bidentate phenanthroline-like ligands, pyrazolo[1,5-a][1,10]phenanthroline-3-carbonitrile (L1) and 1-(pyrazolo[1,5-a][1,10]phenanthrolin-3-yl)ethan-1-one (L2), have been synthesized. A reaction of copper(I) iodide with L1 or L2 leads to the formation of binuclear complexes [Cu2(Ln)2I2]·Solv, which have rhomboid binuclear fragment {Cu2I2} according to the single crystal X-ray diffraction. These complexes are gradually oxidized on air and do not show any photoluminescence. At the same time, reaction between the ligand (L1 or L2), triphenylphosphine and copper(I) iodide produces mononuclear coordination compounds [CuLn(PPh3)I]. It has been discovered that the [CuL1(PPh3)I] complex can be isolated as two polymorph modifications. The mononuclear complexes demonstrate microsecond red luminescence: λmax = 700 nm for [CuL2(PPh3)I], λmax = 640 nm for the first polymorph of [CuL1(PPh3)I] (2a) and λmax = 700 nm for the second polymorph (2b). Also for [CuL1(PPh3)I] polymorphs excitation-dependent emission has been detected at 77 K.

Malakhova J.A. , Berezin A.S. , Glebov E.M. , Sannikova V.A. , Vorob'ev A.Y. , Pervukhina N.V. , Naumov D.Y. , Kolybalov D.S. , Syrokvashin M.M. , Vinogradova K.A.
Luminescent Polymorphism of Mononuclear Cu(I) Complexes with Pyrazolo[1,5-a][1,10]phenanthrolines
Inorganica Chimica Acta. 2023. V.555. 121604 :1-13. DOI: 10.1016/j.ica.2023.121604 WOS Scopus ANCAN OpenAlex

Submitted:	Apr 7, 2023
Accepted:	May 22, 2023
Published online:	May 25, 2023
Published print:	Sep 24, 2023

Web of science:	WOS:001012628700001
Scopus:	2-s2.0-85160530455
Chemical Abstracts:	2023:1102620
Chemical Abstracts (print):	183:222593
OpenAlex:	W4378189476

DB	Citing
OpenAlex	3
Scopus	3
Web of science	3