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A New Heteroleptic Complex of Nitrosyl Ruthenium with Ethylenediamine and the NO–Ru–F Trans-Coordinate: Synthesis, Structure, and Photoinduced Linkage Isomerization. / Brovko, A. O.; Kuratieva, N. V.; Emelyanov, V. A. et al.
In: Journal of Structural Chemistry, Vol. 65, No. 7, 07.2024, p. 1404-1411.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - A New Heteroleptic Complex of Nitrosyl Ruthenium with Ethylenediamine and the NO–Ru–F Trans-Coordinate: Synthesis, Structure, and Photoinduced Linkage Isomerization
AU - Brovko, A. O.
AU - Kuratieva, N. V.
AU - Emelyanov, V. A.
AU - Pishchur, D. P.
AU - Kostin, G. A.
N1 - The authors are grateful to the Russian Science Foundation for the financial support of the research (project 22-43-09001).
PY - 2024/7
Y1 - 2024/7
N2 - A new method is proposed to synthesize ethylenediamine complex [RuNO(en)2OH]I2 from K2[RuNOCl5], which increases the target product yield to 76%. Subsequent treatment of nitrate salt [RuNO(en)2 OH](NO3)2 with concentrated HF with the precipitation of HClO4 gives [RuNO(en)2F](ClO4)2 with a quantitative yield. According to the single crystal XRD data, in the [RuNO(en)2F]2+ cationic moiety, nitrosyl and fluoride are in the trans-position relative to each other, and in the ruthenium coordination environment, the equatorial plane is composed of four nitrogen atoms from ethylenediamine ligands. The 450 nm light irradiation of the [RuNO(en)2F](ClO4)2 complex at 80 K results in the formation of metastable linkage isomer MS1 with nitrosyl group coordination through the oxygen atom. According to the IR spectroscopic data, the population of MS1 is about 1%, and the respective vibrational band disappears when heated in a temperature range of 280-310 K. The activation parameters of the MS1–GS (ground state) transition according to the DSC data are Ea = 107.1±6.8 kJ/mol, lnk0 = 36.1±2.6.
AB - A new method is proposed to synthesize ethylenediamine complex [RuNO(en)2OH]I2 from K2[RuNOCl5], which increases the target product yield to 76%. Subsequent treatment of nitrate salt [RuNO(en)2 OH](NO3)2 with concentrated HF with the precipitation of HClO4 gives [RuNO(en)2F](ClO4)2 with a quantitative yield. According to the single crystal XRD data, in the [RuNO(en)2F]2+ cationic moiety, nitrosyl and fluoride are in the trans-position relative to each other, and in the ruthenium coordination environment, the equatorial plane is composed of four nitrogen atoms from ethylenediamine ligands. The 450 nm light irradiation of the [RuNO(en)2F](ClO4)2 complex at 80 K results in the formation of metastable linkage isomer MS1 with nitrosyl group coordination through the oxygen atom. According to the IR spectroscopic data, the population of MS1 is about 1%, and the respective vibrational band disappears when heated in a temperature range of 280-310 K. The activation parameters of the MS1–GS (ground state) transition according to the DSC data are Ea = 107.1±6.8 kJ/mol, lnk0 = 36.1±2.6.
KW - decomposition temperature
KW - ethylenediamine
KW - linkage isomerism
KW - metastable states
KW - nitrosyl complexes
KW - photoisomerization
KW - ruthenium
KW - single crystal X-ray diffraction
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85199809624&origin=inward&txGid=3b73cfb2918f01898e4557ba4d8203ee
UR - https://www.mendeley.com/catalogue/7737351f-d9d7-3ee5-a74d-2bab7d28a65e/
U2 - 10.1134/S0022476624070114
DO - 10.1134/S0022476624070114
M3 - Article
VL - 65
SP - 1404
EP - 1411
JO - Journal of Structural Chemistry
JF - Journal of Structural Chemistry
SN - 0022-4766
IS - 7
ER -
ID: 60862754