Inorganic Chemistry, volume 61, issue 42, pages 16596-16606
Deep-Blue Emissive Copper(I) Complexes Based on P-Thiophenylethyl-Substituted Cyclic Bisphosphines Displaying Photoinduced Structural Transformations of the Excited States
Strelnik Igor D
1
,
Dayanova Irina R
1
,
Kalinichev Alexey
2
,
Shmelev Artemiy
3
,
R. Islamov Daut
1
,
Lönnecke Peter
4
,
Musina Elvira
1
,
4
Fakultät für Chemie und Mineralogie, Institut für Anorganische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
|
Publication type: Journal Article
Publication date: 2022-10-13
Journal:
Inorganic Chemistry
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 4.6
ISSN: 00201669, 1520510X
Inorganic Chemistry
Physical and Theoretical Chemistry
Abstract
A synthetic method for a primary 2-(thiophen-2'-yl)ethylphosphine was developed. The reaction of thiophenylethylphosphine with paraformaldehyde and primary arylamines leads to the formation of cyclic bisphosphines, namely, 1,5-di(aryl)-3,7-bis(thiophenylethyl)-1,5-diaza-3,7-diphosphacyclooctane (aryl = phenyl, p-tolyl). The obtained bisphosphines form cationic bis-P,P-chelate complexes with copper(I) tetrafluoroborate, which were structurally characterized by NMR spectroscopy, mass spectrometry, and elemental and XRD analyses. Surprisingly, the copper(I) complexes display a multiband emission in the solid state with maxima at 355-360, 425-430, and 480-490 nm and nanosecond lifetimes (1.2-1.4 ns) upon a 335 nm excitation. The excitation of the complexes at 360 nm at room temperature results in a deep-blue emission at 425-430 nm and a tail at 460-490 nm. A temperature decrease leads to an increased intensity of the emission band at 480 nm, while the luminescence lifetimes insignificantly increased up to 14 ns. Quantum chemical calculations explain the observed unusual luminescent behavior by the existence of "undistorted" and "flattened" singlet excited states of copper(I) complexes at room temperature and at 77 K, respectively.
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Strelnik I. D. et al. Deep-Blue Emissive Copper(I) Complexes Based on P-Thiophenylethyl-Substituted Cyclic Bisphosphines Displaying Photoinduced Structural Transformations of the Excited States // Inorganic Chemistry. 2022. Vol. 61. No. 42. pp. 16596-16606.
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Strelnik I. D., Dayanova I. R., Gerasimova T. P., Katsyuba S. A., Kolesnikov I. E., Kalinichev A., Shmelev A., R. Islamov D., Lönnecke P., Hey-Hawkins E., Musina E., Karasik A. A. Deep-Blue Emissive Copper(I) Complexes Based on P-Thiophenylethyl-Substituted Cyclic Bisphosphines Displaying Photoinduced Structural Transformations of the Excited States // Inorganic Chemistry. 2022. Vol. 61. No. 42. pp. 16596-16606.
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TY - JOUR
DO - 10.1021/acs.inorgchem.2c01901
UR - https://doi.org/10.1021%2Facs.inorgchem.2c01901
TI - Deep-Blue Emissive Copper(I) Complexes Based on P-Thiophenylethyl-Substituted Cyclic Bisphosphines Displaying Photoinduced Structural Transformations of the Excited States
T2 - Inorganic Chemistry
AU - Strelnik, Igor D
AU - Dayanova, Irina R
AU - Gerasimova, Tatiana P
AU - Katsyuba, Sergey A.
AU - Kolesnikov, Ilya E.
AU - Kalinichev, Alexey
AU - Shmelev, Artemiy
AU - R. Islamov, Daut
AU - Lönnecke, Peter
AU - Hey-Hawkins, Evamarie
AU - Musina, Elvira
AU - Karasik, Andrey A
PY - 2022
DA - 2022/10/13 00:00:00
PB - American Chemical Society (ACS)
SP - 16596-16606
IS - 42
VL - 61
SN - 0020-1669
SN - 1520-510X
ER -
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@article{2022_Strelnik,
author = {Igor D Strelnik and Irina R Dayanova and Tatiana P Gerasimova and Sergey A. Katsyuba and Ilya E. Kolesnikov and Alexey Kalinichev and Artemiy Shmelev and Daut R. Islamov and Peter Lönnecke and Evamarie Hey-Hawkins and Elvira Musina and Andrey A Karasik},
title = {Deep-Blue Emissive Copper(I) Complexes Based on P-Thiophenylethyl-Substituted Cyclic Bisphosphines Displaying Photoinduced Structural Transformations of the Excited States},
journal = {Inorganic Chemistry},
year = {2022},
volume = {61},
publisher = {American Chemical Society (ACS)},
month = {oct},
url = {https://doi.org/10.1021%2Facs.inorgchem.2c01901},
number = {42},
pages = {16596--16606},
doi = {10.1021/acs.inorgchem.2c01901}
}
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MLA
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Strelnik, Igor D., et al. “Deep-Blue Emissive Copper(I) Complexes Based on P-Thiophenylethyl-Substituted Cyclic Bisphosphines Displaying Photoinduced Structural Transformations of the Excited States.” Inorganic Chemistry, vol. 61, no. 42, Oct. 2022, pp. 16596-16606. https://doi.org/10.1021%2Facs.inorgchem.2c01901.