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Influence of Electronic Configurations on the Modulation of Fermi/Orbital Junction Energies for Directional Electron Transport through 3d ¹ , 3d ³ , and 3d ⁵ Metallosurfactants

https://doi.org/10.1021/acs.jpcc.2c04840

Weeraratne, A. D.; Rani, Neha; Amunugama, Samudra; Perera, S. Sameera; Kpogo, Kenneth K.; Mazumder, Shivnath; Verani, Cláudio N. (December 2022, The Journal of Physical Chemistry C)

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Electron transport through a (terpyridine)ruthenium metallo-surfactant containing a redox-active aminocatechol derivative

https://doi.org/10.1039/D2DT00938B

Amunugama, Samudra; Asempa, Eyram; Tripathi, Ramesh Chandra; Wanniarachchi, Dakshika; Baydoun, Habib; Hoffmann, Peter; Jakubikova, Elena; Verani, Cláudio N. (May 2022, Dalton Transactions)

Aiming to develop a new class of metallosurfactants with unidirectional electron transfer properties, a (terpyridine) ruthenium complex containing a semiquinone derivative L 2 , namely [Ru III (L terpy )(L 2 )Cl]PF 6 (1), was synthesized and structurally characterized as a solid and in solution. The electronic and redox behaviour of 1 was studied experimentally as well as by means of DFT methods, and is indicative of significant orbital mixing and overlap between metal and ligands. The complex forms stable Pockels–Langmuir films at the air-water interface and allows for the formation of thin films onto gold electrodes to prepare nanoscale Au|LB 1|Au junctions for current–voltage ( I / V ) analysis. Complex 1 shows asymmetric electron transfer with a maximum rectification ratio of 32 based on tunnelling through MOs of the aminocatechol derivative.
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Electrochemical Quantification of Corrosion Mitigation on Iron Surfaces with Gallium(III) and Zinc(II) Metallosurfactants

https://doi.org/10.1021/acs.langmuir.0c01826

Weeraratne, A. D.; Hewa-Rahinduwage, Chathuranga C.; Luo, Long; Verani, Cláudio N. (December 2020, Langmuir)
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A Molecular Approach for Mitigation of Aluminum Pitting based on Films of Zinc(II) and Gallium(III) Metallosurfactants

https://doi.org/10.1002/chem.201903408

Weeraratne, A. D. K. Isuri; Hewa‐Rahinduwage, Chathuranga C.; Gonawala, Sunalee; Luo, Long; Verani, Cláudio N. (October 2019, Chemistry – A European Journal)

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