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Iridium Complexes with BIAN-Type Ligands: Synthesis, Structure and Redox Chemistry. / Romashev, Nikolai F; Bakaev, Ivan V; Komlyagina, Veronika I et al.

In: International Journal of Molecular Sciences, Vol. 24, No. 13, 10457, 21.06.2023.

Research output: Contribution to journalArticlepeer-review

Harvard

Romashev, NF, Bakaev, IV, Komlyagina, VI, Abramov, PA, Mirzaeva, IV, Nadolinny, VA, Lavrov, AN, Kompan'kov, NB, Mikhailov, AA, Fomenko, IS, Novikov, AS, Sokolov, MN & Gushchin, AL 2023, 'Iridium Complexes with BIAN-Type Ligands: Synthesis, Structure and Redox Chemistry', International Journal of Molecular Sciences, vol. 24, no. 13, 10457. https://doi.org/10.3390/ijms241310457

APA

Romashev, N. F., Bakaev, I. V., Komlyagina, V. I., Abramov, P. A., Mirzaeva, I. V., Nadolinny, V. A., Lavrov, A. N., Kompan'kov, N. B., Mikhailov, A. A., Fomenko, I. S., Novikov, A. S., Sokolov, M. N., & Gushchin, A. L. (2023). Iridium Complexes with BIAN-Type Ligands: Synthesis, Structure and Redox Chemistry. International Journal of Molecular Sciences, 24(13), [10457]. https://doi.org/10.3390/ijms241310457

Vancouver

Romashev NF, Bakaev IV, Komlyagina VI, Abramov PA, Mirzaeva IV, Nadolinny VA et al. Iridium Complexes with BIAN-Type Ligands: Synthesis, Structure and Redox Chemistry. International Journal of Molecular Sciences. 2023 Jun 21;24(13):10457. doi: 10.3390/ijms241310457

Author

Romashev, Nikolai F ; Bakaev, Ivan V ; Komlyagina, Veronika I et al. / Iridium Complexes with BIAN-Type Ligands: Synthesis, Structure and Redox Chemistry. In: International Journal of Molecular Sciences. 2023 ; Vol. 24, No. 13.

BibTeX

@article{2cb9e07b66bc4999a2fe13a019992dba,
title = "Iridium Complexes with BIAN-Type Ligands: Synthesis, Structure and Redox Chemistry",
abstract = "A series of iridium complexes with bis(diisopropylphenyl)iminoacenaphtene (dpp-bian) ligands, [Ir(cod)(dpp-bian)Cl] (1), [Ir(cod)(NO)(dpp-bian)](BF4)2 (2) and [Ir(cod)(dpp-bian)](BF4) (3), were prepared and characterized by spectroscopic techniques, elemental analysis, X-ray diffraction analysis and cyclic voltammetry (CV). The structures of 1-3 feature a square planar backbone consisting of two C = C π-bonds of 1,5-cyclooctadiene (cod) and two nitrogen atoms of dpp-bian supplemented with a chloride ion (for 1) or a NO group (for 2) to complete a square-pyramidal geometry. In the nitrosyl complex 2, the Ir-N-O group has a bent geometry (the angle is 125°). The CV data for 1 and 3 show two reversible waves between 0 and -1.6 V (vs. Ag/AgCl). Reversible oxidation was also found at E1/2 = 0.60 V for 1. Magnetochemical measurements for 2 in a range from 1.77 to 300 K revealed an increase in the magnetic moment with increasing temperature up to 1.2 μB (at 300 K). Nitrosyl complex 2 is unstable in solution and loses its NO group to yield [Ir(cod)(dpp-bian)](BF4) (3). A paramagnetic complex, [Ir(cod)(dpp-bian)](BF4)2 (4), was also detected in the solution of 2 as a result of its decomposition. The EPR spectrum of 4 in CH2Cl2 is described by the spin Hamiltonian Ĥ = gβHŜ with S = 1/2 and gxx = gyy = 2.393 and gzz = 1.88, which are characteristic of the low-spin 5d7-Ir(II) state. DFT calculations were carried out in order to rationalize the experimental results.",
keywords = "Iridium/chemistry, Ligands, Crystallography, X-Ray, Oxidation-Reduction, Spectrum Analysis",
author = "Romashev, {Nikolai F} and Bakaev, {Ivan V} and Komlyagina, {Veronika I} and Abramov, {Pavel A} and Mirzaeva, {Irina V} and Nadolinny, {Vladimir A} and Lavrov, {Alexander N} and Kompan'kov, {Nikolai B} and Mikhailov, {Artem A} and Fomenko, {Iakov S} and Novikov, {Alexander S} and Sokolov, {Maxim N} and Gushchin, {Artem L}",
note = "Funding: Financial support from the Russian Science Foundation (grant 21-13-00092) is acknowledged.",
year = "2023",
month = jun,
day = "21",
doi = "10.3390/ijms241310457",
language = "English",
volume = "24",
journal = "International Journal of Molecular Sciences",
issn = "1661-6596",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "13",

}

RIS

TY - JOUR

T1 - Iridium Complexes with BIAN-Type Ligands: Synthesis, Structure and Redox Chemistry

AU - Romashev, Nikolai F

AU - Bakaev, Ivan V

AU - Komlyagina, Veronika I

AU - Abramov, Pavel A

AU - Mirzaeva, Irina V

AU - Nadolinny, Vladimir A

AU - Lavrov, Alexander N

AU - Kompan'kov, Nikolai B

AU - Mikhailov, Artem A

AU - Fomenko, Iakov S

AU - Novikov, Alexander S

AU - Sokolov, Maxim N

AU - Gushchin, Artem L

N1 - Funding: Financial support from the Russian Science Foundation (grant 21-13-00092) is acknowledged.

PY - 2023/6/21

Y1 - 2023/6/21

N2 - A series of iridium complexes with bis(diisopropylphenyl)iminoacenaphtene (dpp-bian) ligands, [Ir(cod)(dpp-bian)Cl] (1), [Ir(cod)(NO)(dpp-bian)](BF4)2 (2) and [Ir(cod)(dpp-bian)](BF4) (3), were prepared and characterized by spectroscopic techniques, elemental analysis, X-ray diffraction analysis and cyclic voltammetry (CV). The structures of 1-3 feature a square planar backbone consisting of two C = C π-bonds of 1,5-cyclooctadiene (cod) and two nitrogen atoms of dpp-bian supplemented with a chloride ion (for 1) or a NO group (for 2) to complete a square-pyramidal geometry. In the nitrosyl complex 2, the Ir-N-O group has a bent geometry (the angle is 125°). The CV data for 1 and 3 show two reversible waves between 0 and -1.6 V (vs. Ag/AgCl). Reversible oxidation was also found at E1/2 = 0.60 V for 1. Magnetochemical measurements for 2 in a range from 1.77 to 300 K revealed an increase in the magnetic moment with increasing temperature up to 1.2 μB (at 300 K). Nitrosyl complex 2 is unstable in solution and loses its NO group to yield [Ir(cod)(dpp-bian)](BF4) (3). A paramagnetic complex, [Ir(cod)(dpp-bian)](BF4)2 (4), was also detected in the solution of 2 as a result of its decomposition. The EPR spectrum of 4 in CH2Cl2 is described by the spin Hamiltonian Ĥ = gβHŜ with S = 1/2 and gxx = gyy = 2.393 and gzz = 1.88, which are characteristic of the low-spin 5d7-Ir(II) state. DFT calculations were carried out in order to rationalize the experimental results.

AB - A series of iridium complexes with bis(diisopropylphenyl)iminoacenaphtene (dpp-bian) ligands, [Ir(cod)(dpp-bian)Cl] (1), [Ir(cod)(NO)(dpp-bian)](BF4)2 (2) and [Ir(cod)(dpp-bian)](BF4) (3), were prepared and characterized by spectroscopic techniques, elemental analysis, X-ray diffraction analysis and cyclic voltammetry (CV). The structures of 1-3 feature a square planar backbone consisting of two C = C π-bonds of 1,5-cyclooctadiene (cod) and two nitrogen atoms of dpp-bian supplemented with a chloride ion (for 1) or a NO group (for 2) to complete a square-pyramidal geometry. In the nitrosyl complex 2, the Ir-N-O group has a bent geometry (the angle is 125°). The CV data for 1 and 3 show two reversible waves between 0 and -1.6 V (vs. Ag/AgCl). Reversible oxidation was also found at E1/2 = 0.60 V for 1. Magnetochemical measurements for 2 in a range from 1.77 to 300 K revealed an increase in the magnetic moment with increasing temperature up to 1.2 μB (at 300 K). Nitrosyl complex 2 is unstable in solution and loses its NO group to yield [Ir(cod)(dpp-bian)](BF4) (3). A paramagnetic complex, [Ir(cod)(dpp-bian)](BF4)2 (4), was also detected in the solution of 2 as a result of its decomposition. The EPR spectrum of 4 in CH2Cl2 is described by the spin Hamiltonian Ĥ = gβHŜ with S = 1/2 and gxx = gyy = 2.393 and gzz = 1.88, which are characteristic of the low-spin 5d7-Ir(II) state. DFT calculations were carried out in order to rationalize the experimental results.

KW - Iridium/chemistry

KW - Ligands

KW - Crystallography, X-Ray

KW - Oxidation-Reduction

KW - Spectrum Analysis

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85164843708&origin=inward&txGid=33606040b4427e7f3c0bc743f9e24404

UR - https://www.mendeley.com/catalogue/67022269-ad57-3518-af3f-dd955af71e61/

U2 - 10.3390/ijms241310457

DO - 10.3390/ijms241310457

M3 - Article

C2 - 37445638

VL - 24

JO - International Journal of Molecular Sciences

JF - International Journal of Molecular Sciences

SN - 1661-6596

IS - 13

M1 - 10457

ER -

ID: 52794299