Rhodium complexes bearing 2-(pyridin-2-yl)hydrazino acenaphthene-1-one: synthesis, structure and electrochemical studies

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Rhodium complexes bearing 2-(pyridin-2-yl)hydrazino acenaphthene-1-one: synthesis, structure and electrochemical studies. / Bakaev, I. V.; Komlyagina, V. I.; Ulantikov, A. A. et al.

In: New Journal of Chemistry, Vol. 48, No. 43, 10.2024, p. 18456-18464.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{940cd73027f44697beb34b04715d099b,

title = "Rhodium complexes bearing 2-(pyridin-2-yl)hydrazino acenaphthene-1-one: synthesis, structure and electrochemical studies",

abstract = "Metal complexes based on mono(arylhydrazino)acenaphthenones (Ar-mhan) are extremely rare. In this work, synthetic routes for previously unknown rhodium complexes containing 2-(pyridin-2-yl)hydrazino acenaphthene-1-one (Py-mhan) are proposed. The interaction of RhCl3·3H2O with Py-mhan, depending on the conditions, led to two anionic complexes: (HPy-mhan)+[Rh(Py-mhan)Cl3] (1) and (NBu4)[Rh(Py-mhan)Cl3] (2). The complexes were characterized using X-ray diffraction analysis, elemental analysis, and IR- and 1H NMR-spectroscopies. The electrochemical properties of complex 2 were investigated using cyclic voltammetry. Complex 2 demonstrated irreversible reduction at −0.69 V (vs. Ag/AgCl), which is accompanied by the elimination of chloride ligands to give a Rh(i) complex namely [Rh(Py-mhan)(CH3CN)] (3). Complex 3 was isolated by electroreduction of complex 2 on a carbon glass electrode and characterized by EDS analysis, CHN analysis, 1H NMR spectroscopy and cyclic voltammetry. For complexes 2 and 3, reversible reduction processes localized on Py-mhan were found. To confirm the nature of electrochemical transformations for complexes 2 and 3 in solution, quantum chemical calculations were performed.",

author = "Bakaev, {I. V.} and Komlyagina, {V. I.} and Ulantikov, {A. A.} and Romashev, {N. F.} and Gushchin, {A. L.}",

note = "Financial support from the Russian Science Foundation (grant 23-23-10062) and Government of the Novosibirsk region is acknowledged. The authors thank the Ministry of Science and Higher Education of the Russian Federation and the Centre of Collective Usage of NIIC SB RAS.",

year = "2024",

month = oct,

doi = "10.1039/d4nj03595j",

language = "English",

volume = "48",

pages = "18456--18464",

journal = "New Journal of Chemistry",

issn = "1144-0546",

publisher = "ROYAL SOC CHEMISTRY",

number = "43",

}

RIS

TY - JOUR

T1 - Rhodium complexes bearing 2-(pyridin-2-yl)hydrazino acenaphthene-1-one: synthesis, structure and electrochemical studies

AU - Bakaev, I. V.

AU - Komlyagina, V. I.

AU - Ulantikov, A. A.

AU - Romashev, N. F.

AU - Gushchin, A. L.

N1 - Financial support from the Russian Science Foundation (grant 23-23-10062) and Government of the Novosibirsk region is acknowledged. The authors thank the Ministry of Science and Higher Education of the Russian Federation and the Centre of Collective Usage of NIIC SB RAS.

PY - 2024/10

Y1 - 2024/10

N2 - Metal complexes based on mono(arylhydrazino)acenaphthenones (Ar-mhan) are extremely rare. In this work, synthetic routes for previously unknown rhodium complexes containing 2-(pyridin-2-yl)hydrazino acenaphthene-1-one (Py-mhan) are proposed. The interaction of RhCl3·3H2O with Py-mhan, depending on the conditions, led to two anionic complexes: (HPy-mhan)+[Rh(Py-mhan)Cl3] (1) and (NBu4)[Rh(Py-mhan)Cl3] (2). The complexes were characterized using X-ray diffraction analysis, elemental analysis, and IR- and 1H NMR-spectroscopies. The electrochemical properties of complex 2 were investigated using cyclic voltammetry. Complex 2 demonstrated irreversible reduction at −0.69 V (vs. Ag/AgCl), which is accompanied by the elimination of chloride ligands to give a Rh(i) complex namely [Rh(Py-mhan)(CH3CN)] (3). Complex 3 was isolated by electroreduction of complex 2 on a carbon glass electrode and characterized by EDS analysis, CHN analysis, 1H NMR spectroscopy and cyclic voltammetry. For complexes 2 and 3, reversible reduction processes localized on Py-mhan were found. To confirm the nature of electrochemical transformations for complexes 2 and 3 in solution, quantum chemical calculations were performed.

AB - Metal complexes based on mono(arylhydrazino)acenaphthenones (Ar-mhan) are extremely rare. In this work, synthetic routes for previously unknown rhodium complexes containing 2-(pyridin-2-yl)hydrazino acenaphthene-1-one (Py-mhan) are proposed. The interaction of RhCl3·3H2O with Py-mhan, depending on the conditions, led to two anionic complexes: (HPy-mhan)+[Rh(Py-mhan)Cl3] (1) and (NBu4)[Rh(Py-mhan)Cl3] (2). The complexes were characterized using X-ray diffraction analysis, elemental analysis, and IR- and 1H NMR-spectroscopies. The electrochemical properties of complex 2 were investigated using cyclic voltammetry. Complex 2 demonstrated irreversible reduction at −0.69 V (vs. Ag/AgCl), which is accompanied by the elimination of chloride ligands to give a Rh(i) complex namely [Rh(Py-mhan)(CH3CN)] (3). Complex 3 was isolated by electroreduction of complex 2 on a carbon glass electrode and characterized by EDS analysis, CHN analysis, 1H NMR spectroscopy and cyclic voltammetry. For complexes 2 and 3, reversible reduction processes localized on Py-mhan were found. To confirm the nature of electrochemical transformations for complexes 2 and 3 in solution, quantum chemical calculations were performed.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85207315751&origin=inward&txGid=cff98b9e26d40c3042cf10f75625f70a

UR - https://www.mendeley.com/catalogue/22bf157e-a3ed-37ac-90c6-b7c4871676d3/

U2 - 10.1039/d4nj03595j

DO - 10.1039/d4nj03595j

M3 - Article

VL - 48

SP - 18456

EP - 18464

JO - New Journal of Chemistry

JF - New Journal of Chemistry

SN - 1144-0546

IS - 43

ER -

ID: 61114565