Research output: Contribution to journal › Article › peer-review
Lanthanide complexes with a new luminescent iminophosphonamide ligand bearing phenylbenzothiazole substituents. / Sinitsa, Dmitry; Pylova, Ekaterina Konstantinovna; Mironova, Olga A et al.
In: Dalton Transactions, Vol. 53, No. 5, 12, 30.01.2024, p. 2181-2192.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Lanthanide complexes with a new luminescent iminophosphonamide ligand bearing phenylbenzothiazole substituents
AU - Sinitsa, Dmitry
AU - Pylova, Ekaterina Konstantinovna
AU - Mironova, Olga A
AU - Bashirov, Denis
AU - Ryadun, Alexey A.
AU - Sukhikh, Taisiya Sergeevna
AU - Konchenko, Sergey Nikolaevich
N1 - This work was supported by the Russian Science Foundation (project no. 21–13–00287). The authors acknowledge the Ministry of Science and Higher Education of the Russian Federation (No. 121031700313-8 and No. 121031700321-3) for access to the Centre of Collective Use to carry out the XRD and the luminescence studies.
PY - 2024/1/30
Y1 - 2024/1/30
N2 - A new iminophosphonamine Ph 2P(HNPbt)(NPbt) (1, HL) bearing chromophore 2-(phen-2'-yl)-1,3-benzothiazole (Pbt) substituents was synthesized and introduced into lanthanide complexes. It was found that salt metathesis reactions between KL (2) generated in situ and LnCl 3 lead to the formation of tris-iminophosphonamide complexes [LnL 2]L (Ln = Y (3), Sm (4), Gd (5), Dy (6)), regardless of the 2/LnCl 3 ratio. Compounds 3-6 consist of a cationic fragment [LnL 2] +, where the lanthanide atom is surrounded by two rigidly κ 4-coordinated ligands, and an L - anion residing in the outer coordination sphere. Iminophosphonamine 1 shows a rare excitation wavelength-dependent two-band luminescence in the solid state. For compounds containing the deprotonated form, namely potassium salt KL and complexes of Gd and Dy, a single-band luminescence with the color changing from turquoise to orange was observed. The Sm complex reveals a set of a few narrow well-resolved bands corresponding to the f-f transitions against the background of the outer-sphere ligand's emission.
AB - A new iminophosphonamine Ph 2P(HNPbt)(NPbt) (1, HL) bearing chromophore 2-(phen-2'-yl)-1,3-benzothiazole (Pbt) substituents was synthesized and introduced into lanthanide complexes. It was found that salt metathesis reactions between KL (2) generated in situ and LnCl 3 lead to the formation of tris-iminophosphonamide complexes [LnL 2]L (Ln = Y (3), Sm (4), Gd (5), Dy (6)), regardless of the 2/LnCl 3 ratio. Compounds 3-6 consist of a cationic fragment [LnL 2] +, where the lanthanide atom is surrounded by two rigidly κ 4-coordinated ligands, and an L - anion residing in the outer coordination sphere. Iminophosphonamine 1 shows a rare excitation wavelength-dependent two-band luminescence in the solid state. For compounds containing the deprotonated form, namely potassium salt KL and complexes of Gd and Dy, a single-band luminescence with the color changing from turquoise to orange was observed. The Sm complex reveals a set of a few narrow well-resolved bands corresponding to the f-f transitions against the background of the outer-sphere ligand's emission.
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85182704252&origin=inward&txGid=61f5954c2832c5980355fed7d03e1a57
UR - https://www.mendeley.com/catalogue/810a1e64-09b9-3f7e-ad3b-8dad5b53a0ff/
U2 - 10.1039/d3dt03511e
DO - 10.1039/d3dt03511e
M3 - Article
C2 - 38192261
VL - 53
SP - 2181
EP - 2192
JO - Dalton Transactions
JF - Dalton Transactions
SN - 1477-9226
IS - 5
M1 - 12
ER -
ID: 59648934