Three-Phase Electrochemistry of a Highly Lipophilic Neutral Ru-Complex Having a Tridentate Bis(benzimidazolate)pyridine Ligand

Mapping Intimacies ◽

10.26434/chemrxiv.12170136 ◽

2020 ◽

Author(s):

Vishwanath R.S ◽

Masa-aki Haga ◽

Takumi Watanabe ◽

Emilia Witkowska Nery ◽

Martin Jönsson-Niedziolka

Keyword(s):

Redox Potential ◽

Organic Phase ◽

Electron Donor ◽

Ion Transfer ◽

Neutral Complex ◽

Pyridine Ligand ◽

Electrochemical Testing ◽

Three Phase ◽

Exceptional Stability

Here we describe the synthesis and electrochemical testing of a heteroleptic bis(tridentate) ruthenium(II) complex [Ru<sup>II</sup>(LR)(L)]<sup>0</sup> (LR =2,6-bis(1-(2-octyldodecan)benzimidazol-2-yl)pyridine, L = 2,6-bis(benzimidazolate)pyridine). It is a neutral complex which undergoes a quasireversible oxidation and reduction at relatively low potential. The newly synthetized compound was used for studies of ion-transfer at the three-phase junction because of the sensitivity of this method to cation expulsion. The [Ru<sup>II</sup>(LR)(L)]<sup>0</sup> shows exceptional stability during cycling and is sufficiently lipophilic even after oxidation to persist in the organic phase also using very hydrophilic anions such as Cl<sup>−</sup>. Given its low redox potential and strong lipophilicity this compound will be of interest as an electron donor in liquid-liquid electrochemistry.

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Three-Phase Electrochemistry of a Highly Lipophilic Neutral Ru-Complex Having a Tridentate Bis(benzimidazolate)pyridine Ligand

10.26434/chemrxiv.12170136.v2 ◽

2020 ◽

Author(s):

Vishwanath R.S ◽

Masa-aki Haga ◽

Takumi Watanabe ◽

Emilia Witkowska Nery ◽

Martin Jönsson-Niedziolka

Keyword(s):

Redox Potential ◽

Organic Phase ◽

Electron Donor ◽

Ion Transfer ◽

Neutral Complex ◽

Pyridine Ligand ◽

Electrochemical Testing ◽

Three Phase ◽

Exceptional Stability

Here we describe the synthesis and electrochemical testing of a heteroleptic bis(tridentate) ruthenium(II) complex [Ru<sup>II</sup>(LR)(L)]<sup>0</sup> (LR =2,6-bis(1-(2-octyldodecan)benzimidazol-2-yl)pyridine, L = 2,6-bis(benzimidazolate)pyridine). It is a neutral complex which undergoes a quasireversible oxidation and reduction at relatively low potential. The newly synthetized compound was used for studies of ion-transfer at the three-phase junction because of the sensitivity of this method to cation expulsion. The [Ru<sup>II</sup>(LR)(L)]<sup>0</sup> shows exceptional stability during cycling and is sufficiently lipophilic even after oxidation to persist in the organic phase also using very hydrophilic anions such as Cl<sup>−</sup>. Given its low redox potential and strong lipophilicity this compound will be of interest as an electron donor in liquid-liquid electrochemistry.

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Three-Phase Electrochemistry of a Highly Lipophilic Neutral Ru-Complex Having a Tridentate Bis(benzimidazolate)pyridine Ligand

10.26434/chemrxiv.12170136.v1 ◽

2020 ◽

Author(s):

Vishwanath R.S ◽

Masa-aki Haga ◽

Takumi Watanabe ◽

Emilia Witkowska Nery ◽

Martin Jönsson-Niedziolka

Keyword(s):

Redox Potential ◽

Organic Phase ◽

Electron Donor ◽

Ion Transfer ◽

Neutral Complex ◽

Pyridine Ligand ◽

Electrochemical Testing ◽

Three Phase ◽

Exceptional Stability

Here we describe the synthesis and electrochemical testing of a heteroleptic bis(tridentate) ruthenium(II) complex [Ru<sup>II</sup>(LR)(L)]<sup>0</sup> (LR =2,6-bis(1-(2-octyldodecan)benzimidazol-2-yl)pyridine, L = 2,6-bis(benzimidazolate)pyridine). It is a neutral complex which undergoes a quasireversible oxidation and reduction at relatively low potential. The newly synthetized compound was used for studies of ion-transfer at the three-phase junction because of the sensitivity of this method to cation expulsion. The [Ru<sup>II</sup>(LR)(L)]<sup>0</sup> shows exceptional stability during cycling and is sufficiently lipophilic even after oxidation to persist in the organic phase also using very hydrophilic anions such as Cl<sup>−</sup>. Given its low redox potential and strong lipophilicity this compound will be of interest as an electron donor in liquid-liquid electrochemistry.

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An in situ microscopic spectroelectrochemical study of a three-phase electrode where an ion transfer at the water|nitrobenzene interface is coupled to an electron transfer at the interface ITO|nitrobenzene

Journal of Electroanalytical Chemistry ◽

10.1016/j.jelechem.2003.11.048 ◽

2004 ◽

Vol 566 (2) ◽

pp. 371-377 ◽

Author(s):

Šebojka Komorsky-Lovrić ◽

Valentin Mirčeski ◽

Christian Kabbe ◽

Fritz Scholz

Keyword(s):

Electron Transfer ◽

Ion Transfer ◽

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Reassessment of the Redox Potential of P740: The Primary Electron Donor in Photosystem I of the Chlorophyll d Containing Cyanobacterium, Acaryochloris marina

Photosynthesis. Energy from the Sun ◽

10.1007/978-1-4020-6709-9_49 ◽

2008 ◽

pp. 219-222

Author(s):

Matthias Schenderlein ◽

Marianne Çetin ◽

Eberhard Schlodder ◽

Samuel Benson ◽

Prabhat K. Sharma ◽

...

Keyword(s):

Redox Potential ◽

Electron Donor ◽

Photosystem I ◽

Primary Electron ◽

Primary Electron Donor ◽

Acaryochloris Marina ◽

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Precise Electrochemical Testing in Half-Cells: Controlling Catalyst Layer Formation and the Three-Phase Boundary in Gas Diffusion Electrodes

ECS Meeting Abstracts ◽

10.1149/ma2021-02361071mtgabs ◽

2021 ◽

Vol MA2021-02 (36) ◽

pp. 1071-1071

Author(s):

Rameshwori Loukrakpam Jalan ◽

Bruna Ferreira Gomes ◽

Christina Roth

Keyword(s):

Phase Boundary ◽

Catalyst Layer ◽

Gas Diffusion ◽

Layer Formation ◽

Gas Diffusion Electrodes ◽

Electrochemical Testing ◽

Three Phase ◽

Three Phase Boundary

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Ion Transfer Across Water/Organic Phase Boundaries and Analytical Applications

Ion-Selective Electrode Reviews ◽

10.1016/b978-0-08-031492-1.50008-5 ◽

1983 ◽

pp. 131-164 ◽

Author(s):

J. Koryta

Keyword(s):

Organic Phase ◽

Ion Transfer ◽

Phase Boundaries ◽

Analytical Applications

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Influence of electron donor, oxygen, and redox potential on bacterial perchlorate degradation

Water Research ◽

10.1016/j.watres.2006.01.035 ◽

2006 ◽

Vol 40 (6) ◽

pp. 1191-1199 ◽

Author(s):

Joshua D. Shrout ◽

Gene F. Parkin

Keyword(s):

Redox Potential ◽

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Three-phase electrochemistry of a highly lipophilic neutral ru-complex having tridentate bis(benzimidazolate)pyridine ligands

Electrochimica Acta ◽

10.1016/j.electacta.2020.137090 ◽

2020 ◽

Vol 362 ◽

pp. 137090

Author(s):

Vishwanath R.S. ◽

Masa-aki Haga ◽

Takumi Watanabe ◽

Emilia Witkowska Nery ◽

Martin Jönsson-Niedziółka

Keyword(s):

Pyridine Ligands ◽

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Tuning of the redox potential of the primary electron donor in reaction centres of purple bacteria: effects of amino acid polarity and position

FEBS Letters ◽

10.1016/s0014-5793(02)03203-9 ◽

2002 ◽

Vol 527 (1-3) ◽

pp. 171-175 ◽

Author(s):

Diane Spiedel ◽

Michael R Jones ◽

Bruno Robert

Keyword(s):

Redox Potential ◽

Electron Donor ◽

Purple Bacteria ◽

Primary Electron ◽

Primary Electron Donor ◽

Reaction Centres ◽

Amino Acid Polarity

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Comparative Study of the Thermodynamics and Kinetics of the Ion Transfer Across the Liquid|Liquid Interface by Means of Three-Phase Electrodes

The Journal of Physical Chemistry B ◽

10.1021/jp0519969 ◽

2005 ◽

Vol 109 (27) ◽

pp. 13228-13236 ◽

Author(s):

François Quentel ◽

Valentin Mirčeski ◽

Maurice L'Her ◽

Mitko Mladenov ◽

Fritz Scholz ◽

...

Keyword(s):

Comparative Study ◽

Liquid Interface ◽

Ion Transfer ◽

Thermodynamics And Kinetics ◽

Three Phase ◽

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