Research output: Contribution to journal › Article › peer-review
Manganese(II) Thiocyanate Complexes with Bis(phosphine Oxide) Ligands : Synthesis and Excitation Wavelength-Dependent Multicolor Luminescence. / Davydova, Maria P.; Bauer, Irina A.; Brel, Valery K. et al.
In: European Journal of Inorganic Chemistry, Vol. 2020, No. 8, 28.02.2020, p. 695-703.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Manganese(II) Thiocyanate Complexes with Bis(phosphine Oxide) Ligands
T2 - Synthesis and Excitation Wavelength-Dependent Multicolor Luminescence
AU - Davydova, Maria P.
AU - Bauer, Irina A.
AU - Brel, Valery K.
AU - Rakhmanova, Mariana I.
AU - Bagryanskaya, Irina Yu
AU - Artem'ev, Alexander V.
N1 - Publisher Copyright: © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/2/28
Y1 - 2020/2/28
N2 - First examples of luminescent MnII thiocyanate complexes are presented. A series of such compounds has been synthesized via the reaction of Mn(NCS)2 with bis(phosphine oxides), Ph2P(O)–X–(O)PPh2, where X = CH2 (L1), CH2CH2 (L2), CH2CH2CH2 (L3), CH2C(=CH2)CH2 (L4), C(=CH2)C(=CH2) (L5) and C≡C (L6). The L1, L3 and L4 ligands, when reacted with Mn(NCS)2 on air (EtOH/acetone, r.t.), produce chelate complexes [MnII(O^O)2(NCS)2]. Under similar conditions, L5 gives ionic complex [MnII(L5)3][MnII(NCS)4], whereas L6 affords chain coordination polymer (CP) [MnII(L6)2(NCS)2]n. By contrast, ligand L2 results in formation of mixed-valent chain CP [MnIIMnIII(L2)3(NCS)5]n. Complex [Mn(L4)2(NCS)2] and CP [Mn(L6)2(NCS)2]n display unique dual luminescence, i.e. the intraligand fluorescence (blue band) and MnII-centered phosphorescence (red band), the ratio of which is largely modulated by excitation wavelength. Through this feature, the luminescence color of these complexes can be smoothly tuned from deep-blue to red. Complex [Mn(L5)3][Mn(NCS)4] shows MnII-based phosphorescence only.
AB - First examples of luminescent MnII thiocyanate complexes are presented. A series of such compounds has been synthesized via the reaction of Mn(NCS)2 with bis(phosphine oxides), Ph2P(O)–X–(O)PPh2, where X = CH2 (L1), CH2CH2 (L2), CH2CH2CH2 (L3), CH2C(=CH2)CH2 (L4), C(=CH2)C(=CH2) (L5) and C≡C (L6). The L1, L3 and L4 ligands, when reacted with Mn(NCS)2 on air (EtOH/acetone, r.t.), produce chelate complexes [MnII(O^O)2(NCS)2]. Under similar conditions, L5 gives ionic complex [MnII(L5)3][MnII(NCS)4], whereas L6 affords chain coordination polymer (CP) [MnII(L6)2(NCS)2]n. By contrast, ligand L2 results in formation of mixed-valent chain CP [MnIIMnIII(L2)3(NCS)5]n. Complex [Mn(L4)2(NCS)2] and CP [Mn(L6)2(NCS)2]n display unique dual luminescence, i.e. the intraligand fluorescence (blue band) and MnII-centered phosphorescence (red band), the ratio of which is largely modulated by excitation wavelength. Through this feature, the luminescence color of these complexes can be smoothly tuned from deep-blue to red. Complex [Mn(L5)3][Mn(NCS)4] shows MnII-based phosphorescence only.
KW - Excitation dependent emission
KW - Manganese
KW - Multicolor luminescence
KW - Phosphine oxide ligands
KW - Thiocyanates
KW - POLYMERS
KW - MN
KW - PHOTOLUMINESCENCE
KW - TRIBOLUMINESCENCE
KW - RED-LIGHT EMISSION
KW - ORGANIC-INORGANIC HYBRID
KW - HIGH QUANTUM YIELD
KW - TRIPHENYLPHOSPHINE OXIDE
KW - SPECTRA
UR - http://www.scopus.com/inward/record.url?scp=85079701546&partnerID=8YFLogxK
U2 - 10.1002/ejic.201901213
DO - 10.1002/ejic.201901213
M3 - Article
AN - SCOPUS:85079701546
VL - 2020
SP - 695
EP - 703
JO - European Journal of Inorganic Chemistry
JF - European Journal of Inorganic Chemistry
SN - 1434-1948
IS - 8
ER -
ID: 23575105