Luminescent Zn Halide Complexes with 2-(2-Aminophenyl)benzothiazole Derivatives | Sciact - CRIS-system of Boreskov Institute of Catalysis

Luminescent Zn Halide Complexes with 2-(2-Aminophenyl)benzothiazole Derivatives Full article

Journal

Inorganics
, E-ISSN: 2304-6740

Output data

Year: 2022, Volume: 10, Number: 9, Article number : 138, Pages count : 10 DOI: 10.3390/inorganics10090138

Tags

coordination compounds; heterocyclic compounds; single crystal X-ray diffraction; luminescence

Authors

Sukhikh Taisiya S. ¹ , Kolybalov Dmitry S. ^1,2 , Pylova Ekaterina K. ^1,2,3 , Konchenko Sergey N. ^1,2

Affiliations

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russia
2	Department of Natural Sciences, National Research University—Novosibirsk State University, Novosibirsk 630090, Russia
3	Institute Charles Gerhardt Montpellier, National School of Chemistry Montpellier, University of Montpellier, CNRS, ENSCM, 34000 Montpellier, France

We report a comparative study of coordination behaviour of 2-(2-aminophenyl)benzothiazole (NH2-pbt) and its phosphorus-containing derivative, α-aminophosphine oxide (PCNH-pbt), towards zinc halides. The corresponding coordination compounds [Zn(L)2Hal2] (L = PCNH-pbt, Hal = Cl, 1 and Hal = Br, 2) and [Zn(L’)Hal2] (L’ = NH2-pbt, Hal = Cl, 3 and Hal = Br, 4) were obtained as single phases. As evidenced by single-crystal X-ray diffraction analysis, L’ ligand coordinates to Zn in a chelate manner via two N atoms. Despite a similar coordination mode in complexes 3 and 4, the spatial geometry of the ligand differs notably, which implies a relatively high flexibility of NH2-pbt. The L ligand exhibits another coordination mode, binding with Zn only via the oxygen of the P=O group. The differences in the structures of NH2-pbt, 3 and 4, and their counterparts, PCNH-pbt, 1 and 2, induce differences in their solid-state photoluminescence properties. The former group of the compounds exhibits conventional single-band emission, while the latter group reveals two bands. The minor band at 450 nm is ascribed to a radiative transition for the regular amine species, while the major band at 520–550 nm can be associated either with the proton-transferred imine species (ESIPT mechanism) or with a charge transfer state (TICT) with a different geometry.

Sukhikh T.S. , Kolybalov D.S. , Pylova E.K. , Konchenko S.N.
Luminescent Zn Halide Complexes with 2-(2-Aminophenyl)benzothiazole Derivatives
Inorganics. 2022. V.10. N9. 138 :1-10. DOI: 10.3390/inorganics10090138 WOS Scopus AN OpenAlex

Submitted:	Aug 24, 2022
Accepted:	Sep 13, 2022
Published print:	Sep 15, 2022
Published online:	Sep 15, 2022

Web of science:	WOS:000863477000001
Scopus:	2-s2.0-85138722924
Chemical Abstracts:	2022:2522559
OpenAlex:	W4296049522

DB	Citing
Scopus	8
Web of science	7
OpenAlex	8