Modification of Weak Localization in Metallic Thin Films Due to the Adsorption of Chiral Molecules

Ozeri, Meital; Xu, Jiahui; Bauer, G.; Olthof, L. A. B. Olde; Kimbell, G. H.; Wittmann, Angela; Yochelis, Shira; Fransson, Jonas; Robinson, Jason W. A.; Paltiel, Yossi; Millo, Oded

doi:10.1021/acs.jpclett.3c00702

Cited by 5 publications

(2 citation statements)

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“…Although the mechanism is not totally clear, it has been demonstrated both theoretically and experimentally that spin polarization occurs as a consequence of electron transfer, electron transport, and bond polarization through chiral centers. Based on this result, we suggest that the formation of the bond between the chiral molecule and the gold surface leads to spin polarization 32,33 in the Au substrate surrounding the molecules, subsequently affecting the kinetics of the reaction taking place at the catalysts supported by the same Au substrate (Fig. 4), or that the spin-polarized electrons are transmitted through the molecules in close proximity to the TiO 2 walls, effectively acting as a bridge between the Au and TiO 2 .…”

mentioning

confidence: 83%

Hybrid mesoporous electrodes evidence CISS effect on water oxidation

Vensaus,

Liang,

Zigon

et al. 2024

The Journal of Chemical Physics

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Controlling product selectivity is essential for improving the efficiency of multi-product reactions. Electrochemical water oxidation is a reaction of main importance in different applications, e.g., renewable energy schemes and environmental protection, where H2O2 and O2 are the two principal products. In this Communication, the product selectivity of electrochemical water oxidation was controlled by making use of the chiral induced spin selectivity (CISS) effect at mesoporous-TiO2 on the molecule-modified Au substrate. Our results show a decrease in H2O2 formation when using chiral hetero-helicene molecules adsorbed on the Au substrate. We propose a mechanism for this kinetic effect based on the onset of CISS-induced spin polarization on the Au–helicene chiral interface. We also present a new tunable substrate to investigate the CISS mechanism.

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mentioning

confidence: 83%

Hybrid mesoporous electrodes evidence CISS effect on water oxidation

Vensaus,

Liang,

Zigon

et al. 2024

The Journal of Chemical Physics

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“…DNA (see refs , , , , , − , , − ) and α-helical oligopeptides (see refs , , − , , , , , , − , , , , , , , , , − ) have been widely used to explore the CISS effect and its connection with molecular properties. Having been investigated by spin-dependent photoemission, transport, electrochemical, and spin-dependent polarization experiments, they comprise testbed systems for comparisons between methods.…”

Section: Materials and Molecules Exhibiting Cissmentioning

confidence: 99%

Chiral Induced Spin Selectivity

Bloom,

Paltiel,

Naaman

et al. 2024

Chem. Rev.

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Since the initial landmark study on the chiral induced spin selectivity (CISS) effect in 1999, considerable experimental and theoretical efforts have been made to understand the physical underpinnings and mechanistic features of this interesting phenomenon. As first formulated, the CISS effect refers to the innate ability of chiral materials to act as spin filters for electron transport; however, more recent experiments demonstrate that displacement currents arising from charge polarization of chiral molecules lead to spin polarization without the need for net charge flow. With its identification of a fundamental connection between chiral symmetry and electron spin in molecules and materials, CISS promises profound and ubiquitous implications for existing technologies and new approaches to answering age old questions, such as the homochiral nature of life. This review begins with a discussion of the different methods for measuring CISS and then provides a comprehensive overview of molecules and materials known to exhibit CISS-based phenomena before proceeding to identify structure−property relations and to delineate the leading theoretical models for the CISS effect. Next, it identifies some implications of CISS in physics, chemistry, and biology. The discussion ends with a critical assessment of the CISS field and some comments on its future outlook.

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What Can CISS Teach Us about Electron Transfer?

Naaman,

Waldeck

2024

J. Phys. Chem. Lett.

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Modification of Weak Localization in Metallic Thin Films Due to the Adsorption of Chiral Molecules

Cited by 5 publications

References 50 publications

Hybrid mesoporous electrodes evidence CISS effect on water oxidation

Hybrid mesoporous electrodes evidence CISS effect on water oxidation

Chiral Induced Spin Selectivity

What Can CISS Teach Us about Electron Transfer?

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