On the differences in the mechanisms of reduction of AuCl2 - And Ag(H2O)2 + with BH4

Haya Kornweitz; Totan Mondal; Alina Sermiagin; Tomer Zidki; Allon Bogot; Dan Meyerstein

doi:10.1021/acs.jpca.0c06610

On the differences in the mechanisms of reduction of AuCl2 - And Ag(H2O)2 + with BH4

Haya Kornweitz, Totan Mondal, Alina Sermiagin, Tomer Zidki, Allon Bogot, Dan Meyerstein

Research output: Contribution to journal › Article › peer-review

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Abstract

The mechanism of reduction of AuCl4 -/AuCl3OH- by BH4 - was analyzed by density functional theory (DFT). The results point out that Auatoms 0 are not intermediates in the process. The derived mechanism differs considerably from that reported for the analogous process involving the reduction of Ag(H2O)2 + by BH4 -. Thus, though both processes follow the Creighton procedure, the detailed mechanism differs significantly. For Au, the agglomeration starts with AuH2 -, whereas for Ag, it starts with (H2O)AgH. Stopped-flow measurements support the complicated mechanism.

Original language	English
Pages (from-to)	10765-10776
Number of pages	12
Journal	Journal of Physical Chemistry A
Volume	124
Issue number	51
DOIs	https://doi.org/10.1021/acs.jpca.0c06610
State	Published - 24 Dec 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020 American Chemical Society.

Funding

T.M. thanks Ariel University for a postdoc fellowship. A.S. thanks Ariel University for a Ph.D. student fellowship.

Funders	Funder number
Ariel University

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abstract = "The mechanism of reduction of AuCl4 -/AuCl3OH- by BH4 - was analyzed by density functional theory (DFT). The results point out that Auatoms 0 are not intermediates in the process. The derived mechanism differs considerably from that reported for the analogous process involving the reduction of Ag(H2O)2 + by BH4 -. Thus, though both processes follow the Creighton procedure, the detailed mechanism differs significantly. For Au, the agglomeration starts with AuH2 -, whereas for Ag, it starts with (H2O)AgH. Stopped-flow measurements support the complicated mechanism.",

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AU - Zidki, Tomer

AU - Bogot, Allon

AU - Meyerstein, Dan

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On the differences in the mechanisms of reduction of AuCl2 - And Ag(H2O)2 + with BH4

Abstract

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