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Nikolaevskii SA, Kiskin MA, Starikov AG, Efimov NN, Bogomyakov AS, Minin VV, Ugolkova EA, Nikitin OM, Magdesieva TV, Sidorov AA, Eremenko IL. Atmospheric Oxygen Influence on the Chemical Transformations of 4,5-Dimethyl-1,2-Phenylenediamine in the Reactions with Copper(II) Pivalate. RUSS J COORD CHEM+ 2019. [DOI: 10.1134/s1070328419040067] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Dorofeeva V, Pavlishchuk AV, Kiskin MA, Efimov NN, Minin VV, Lytvynenko AS, Gavrilenko KS, Kolotilov SV, Novotortsev VM, Eremenko IL. Co II Complexes with a Tripyridine Ligand, Containing a 2,6-Di- tert-butylphenolic Fragment: Synthesis, Structure, and Formation of Stable Radicals. ACS OMEGA 2019; 4:203-213. [PMID: 31459324 PMCID: PMC6648094 DOI: 10.1021/acsomega.8b02595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 12/19/2018] [Indexed: 06/10/2023]
Abstract
Interaction of a tripyridine ligand bearing a 2,6-di-tert-butylphenolic fragment (L, 2,6-di-tert-butyl-4-(3,5-bis(4-pyridyl)pyridyl)phenol) with CoII pivalate or chloride led to the formation of one-dimensional coordination polymers [Co(L)Cl2] n ·nEtOH (1) and [Co3(L)2(OH)(Piv)5] n (2) or a trinuclear complex Co3(H2O)4(L)2Cl6 (3) (Piv- = pivalate). Chemical oxidation of L and 1-3 by PbO2 or K3[Fe(CN)6], as well as exposure of L (in solution or solid state) and 2 (in solid state) to UV irradiation, led to the formation of free radicals with g = 2.0024, which probably originated because of oxidation of 2,6-di-tert-butylphenolic groups. These radicals were stable for several days in solutions and more than 1 month in solid samples. Irradiation and oxidation of the solid samples probably caused formation of the phenoxyl radical only on their surface. It was shown by density functional theory calculations that exchange coupling between the unpaired electron of the phenoxyl radical and CoII ions was negligibly weak and could not affect the electron paramagnetic resonance signal of the radical, as well as exchange coupling of CoII ions could not be transmitted by L. The latter conclusion was confirmed by the analysis of magnetic properties of 1: temperature dependency of magnetic susceptibility (χM) of 1 could be simulated by a simple model for isolated CoII ions.
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Affiliation(s)
- Victoria
N. Dorofeeva
- L.
V. Pisarzhevskii Institute of Physical Chemistry of the National Academy
of Sciences of Ukraine, Prospekt Nauki 31, Kiev 03028, Ukraine
| | - Anna V. Pavlishchuk
- L.
V. Pisarzhevskii Institute of Physical Chemistry of the National Academy
of Sciences of Ukraine, Prospekt Nauki 31, Kiev 03028, Ukraine
- Department
of Chemistry, Taras Shevchenko National
University of Kiev, Volodymyrska Street 62, Kiev 01601, Ukraine
| | - Mikhail A. Kiskin
- N. S.
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, GSP-1, Russian Federation
| | - Nikolay N. Efimov
- N. S.
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, GSP-1, Russian Federation
| | - Vadim V. Minin
- N. S.
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, GSP-1, Russian Federation
| | - Anton S. Lytvynenko
- L.
V. Pisarzhevskii Institute of Physical Chemistry of the National Academy
of Sciences of Ukraine, Prospekt Nauki 31, Kiev 03028, Ukraine
| | - Konstantin S. Gavrilenko
- ChemBioCenter, National Taras Shevchenko University of Kiev, Chervonotkackaya Street 61, 03022 Kiev, Ukraine
- Enamine
Ltd, A. Matrosova Street
23, Kiev 01103, Ukraine
| | - Sergey V. Kolotilov
- L.
V. Pisarzhevskii Institute of Physical Chemistry of the National Academy
of Sciences of Ukraine, Prospekt Nauki 31, Kiev 03028, Ukraine
| | - Vladimir M. Novotortsev
- N. S.
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, GSP-1, Russian Federation
| | - Igor L. Eremenko
- N. S.
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, GSP-1, Russian Federation
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Sanchez-Sala M, Pons J, Alvarez-Larena A, Bayés-García L, Font-Bardia M, Ayllón JA. Cu(II) 4-phenoxybenzoate dimers and monomer coordinated by pyridines: Synthesis and crystal structures. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.06.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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6
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Guerrero M, Ayllón JA, Calvet T, Font-Bardia M, Pons J. Preparation, spectroscopic and structural study of copper(II) complexes derived from bulky pyridine ligands. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.06.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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8
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Whitehead GFS, Ferrando-Soria J, Carthy L, Pritchard RG, Teat SJ, Timco GA, Winpenny REP. Synthesis and reactions of N-heterocycle functionalised variants of heterometallic {Cr7Ni} rings. Dalton Trans 2016; 45:1638-47. [DOI: 10.1039/c5dt04062k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here we present a series of linked cage complexes of functionalised variants of the octametallic ring {Cr7Ni} with the general formula [nPr2NH2][Cr7NiF8(O2CtBu)15(O2CR)], where HO2CR is a N-heterocycle containing carboxylic acid.
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Affiliation(s)
| | | | - Laura Carthy
- School of Chemistry
- The University of Manchester
- Manchester M13 9PL
- UK
| | | | - Simon J. Teat
- Advanced Light Source
- Lawrence Berkeley Laboratory
- Berkeley
- USA
| | - Grigore A. Timco
- School of Chemistry
- The University of Manchester
- Manchester M13 9PL
- UK
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10
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Cheprakova EM, Verbitskiy EV, Kiskin MA, Aleksandrov GG, Slepukhin PA, Sidorov AA, Starichenko DV, Shvachko YN, Eremenko IL, Rusinov GL, Charushin VN. Synthesis and characterization of new complexes derived from 4-thienyl substituted pyrimidines. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.07.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Lipunova GN, Fedorchenko TG, Chupakhin ON. Verdazyls: synthesis, properties, application. RUSSIAN CHEMICAL REVIEWS 2013. [DOI: 10.1070/rc2013v082n08abeh004341] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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12
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Johnston CW, McKinnon SDJ, Patrick BO, Hicks RG. The first “Kuhn verdazyl” ligand and comparative studies of its PdCl2 complex with analogous 6-oxoverdazyl ligands. Dalton Trans 2013; 42:16829-36. [DOI: 10.1039/c3dt52191e] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Cooper W Johnston
- Department of Chemistry, University of Victoria, PO Box 3065 STN CSC, Victoria, BC V8W 3V6, Canada.
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McKinnon SDJ, Patrick BO, Lever ABP, Hicks RG. Electronic Structure Investigations of Neutral and Charged Ruthenium Bis(β-diketonate) Complexes of Redox-Active Verdazyl Radicals. J Am Chem Soc 2011; 133:13587-603. [DOI: 10.1021/ja204575u] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stephen D. J. McKinnon
- Department of Chemistry, University of Victoria, P.O. Box 3065 STN CSC, Victoria, BC. V8W 3V6, Canada
| | - Brian O. Patrick
- Crystallography Laboratory, Department of Chemistry, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada
| | - A. B. P. Lever
- Department of Chemistry, York University, Toronto, Ontario, M3J 1P3, Canada
| | - Robin G. Hicks
- Department of Chemistry, University of Victoria, P.O. Box 3065 STN CSC, Victoria, BC. V8W 3V6, Canada
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