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Ferreira H, Conradie MM, Conradie J. Redox behaviour of imino-β-diketonato ligands and their rhodium(I) complexes. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Synthesis, characterization, electrochemistry, DFT and kinetic study of the oligothiophene-containing complex [Rh((C4H3S-C4H2S)COCHCOCF3)(CO)(PPh3)]. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115095] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Mokolokolo PP, Brink A, Roodt A, Schutte-Smith M. Subtle variation of stereo-electronic effects in rhodium(I) carbonyl Schiff base complexes and their iodomethane oxidative addition kinetics. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1809657] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Pennie P. Mokolokolo
- Department of Chemistry, University of the Free State, Bloemfontein, South Africa
| | - Alice Brink
- Department of Chemistry, University of the Free State, Bloemfontein, South Africa
| | - Andreas Roodt
- Department of Chemistry, University of the Free State, Bloemfontein, South Africa
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Burmakina GV, Verpekin VV, Zimonin DV, Chudin OS, Nedelina TS, Rubaylo AI. Redox Properties of Mononuclear Dicarbonyl and Carbonylphosphine Rhodium (I) Complexes Containing β-diketonate Ligands. JOURNAL OF SIBERIAN FEDERAL UNIVERSITY. CHEMISTRY 2019. [DOI: 10.17516/1998-2836-0138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The redox properties of mononuclear dicarbonyl and carbonylphosphine rhodium (I) complexes (CO)(L)Rh(RC(O)CHC(O)R’) with chelate β-diketonate ligands (L = CO, PPh3; R, R’ = Me, Ph; CF3, C4H3S) were studied by electrochemical methods at platinum, glassed carbon and dropping mercury electrodes in acetonitrile. Schemes of their redox reactions were established
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Affiliation(s)
- Galina V. Burmakina
- Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS”
| | - Victor V. Verpekin
- Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS”
| | - Dmitry V. Zimonin
- Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS”
| | - Oleg S. Chudin
- Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS”
| | | | - Anatoly I. Rubaylo
- Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS”
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Stuurman NF, Buitendach BE, Twigge L, Swarts PJ, Conradie J. Rhodium(triphenylphosphine)carbonyl-2,4-dioxo-3-pentyl-4-decanyloxybenzoate: synthesis, electrochemistry and oxidative addition kinetics. NEW J CHEM 2018. [DOI: 10.1039/c7nj05039a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The influence of a sterically large ligand (CH3COC(C10H21OC6H4COO)COCH3)−, substituted on complex [Rh(CH3COC(C10H21OC6H4COO)COCH3)(CO)(PPh3)], on the ease of rhodium oxidation, is described.
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Affiliation(s)
| | | | - Linette Twigge
- Department of Chemistry
- University of the Free State
- 9300 Bloemfontein
- Republic of South Africa
| | - Pieter J. Swarts
- Department of Chemistry
- University of the Free State
- 9300 Bloemfontein
- Republic of South Africa
| | - Jeanet Conradie
- Department of Chemistry
- University of the Free State
- 9300 Bloemfontein
- Republic of South Africa
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Conradie J. Mechanistic investigation of cis and trans oxidative addition to acetylacetonato-1,5-cyclooctadieneiridium(I). Polyhedron 2017. [DOI: 10.1016/j.poly.2016.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Gostynski R, Conradie J, Erasmus E. Significance of the electron-density of molecular fragments on the properties of manganese(iii) β-diketonato complexes: an XPS and DFT study. RSC Adv 2017. [DOI: 10.1039/c7ra04921h] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The group electronegativity of the R-groups of the ligand influences the XPS binding energies and the amount of charge transferred in the Mn 2p3/2 photoelectron lines. DFT studies illustrated different Jahn–Teller elongation bond stretch isomers.
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Affiliation(s)
- Roxanne Gostynski
- Department of Chemistry
- University of the Free State
- Bloemfontein
- South Africa
| | - Jeanet Conradie
- Department of Chemistry
- University of the Free State
- Bloemfontein
- South Africa
| | - Elizabeth Erasmus
- Department of Chemistry
- University of the Free State
- Bloemfontein
- South Africa
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Ferreira H, Conradie MM, von Eschwege KG, Conradie J. Electrochemical and DFT study of the reduction of substituted phenanthrolines. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.11.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Purcell W, Conradie J, Kumar S, Venter JA. Characterization and oxidative addition reactions for iridium cod complexes. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1261402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- W. Purcell
- Department of Chemistry, University of the Free State, Bloemfontein, South Africa
| | - J. Conradie
- Department of Chemistry, University of the Free State, Bloemfontein, South Africa
| | - S. Kumar
- Department of Chemistry, University of the Free State, Bloemfontein, South Africa
| | - J. A. Venter
- Department of Chemistry, University of the Free State, Bloemfontein, South Africa
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Ferreira H, von Eschwege KG, Conradie J. Electronic properties of Fe charge transfer complexes – A combined experimental and theoretical approach. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.09.034] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Erasmus E, Muller AJ, Siegert U, Swarts JC. Synthesis by ligand exchange and electrochemistry of ruthenocenyl-containing β-diketonato complexes of titanocene. Structure of [TiCp 2 (RcCOCHCOCH 3 )][ClO 4 ]. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.05.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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van Rooyen PH, Conradie J. Orientation of trimethylolethane cyclic phosphite in rhodium complexes: Structure of [Rh(CH3COCHCOCH3)(CO)(P(OCH2)3CCH3)]. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.03.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Erasmus E. Synthesis and electrochemistry of p-substituted phenyl diphenylphosphinite rhodium(I) complexes. Polyhedron 2016. [DOI: 10.1016/j.poly.2015.12.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Conradie J. Density functional theory calculations of Rh-β-diketonato complexes. Dalton Trans 2015; 44:1503-15. [PMID: 25429658 DOI: 10.1039/c4dt02268h] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Density functional theory results on the geometry, energies and charges of selected Rh-β-diketonato reactants, products and transition states.
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Affiliation(s)
- J. Conradie
- Department of Chemistry
- University of the Free State
- 9300 Bloemfontein
- Republic of South Africa
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Landman M, Pretorius R, Fraser R, Buitendach BE, Conradie MM, van Rooyen PH, Conradie J. Electrochemical behaviour and structure of novel phosphine- and phosphite-substituted tungsten(0) Fischer carbene complexes. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.02.127] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Landman M, Pretorius R, Buitendach BE, van Rooyen PH, Conradie J. Synthesis, Structure, and Electrochemistry of Fischer Alkoxy- and Aminocarbene Complexes of Tungsten: The Use of DFT To Predict and Understand Oxidation and Reduction Potentials. Organometallics 2013. [DOI: 10.1021/om400778z] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Marilé Landman
- Department of Chemistry, University of Pretoria, Private Bag
X20, Hatfield 0028, South Africa
| | - René Pretorius
- Department of Chemistry, University of Pretoria, Private Bag
X20, Hatfield 0028, South Africa
| | | | - Petrus H. van Rooyen
- Department of Chemistry, University of Pretoria, Private Bag
X20, Hatfield 0028, South Africa
| | - Jeanet Conradie
- Department of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa
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P(OPh)3 substitution at [Rh(β-diketonato)(cod)] complexes: The relationship between kinetics and frontier orbitals. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.04.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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