Transition Metal Ions in Solution: Complexed Ion Speciation at the Air-Liquid Interface

Theis I. So̷lling; Martin P. Andersson; Safwat Abdel-Azeim; Ahmed M. El Zohry; Jesse Lee Beauchamp

doi:10.1021/acs.langmuir.4c03115

Transition Metal Ions in Solution: Complexed Ion Speciation at the Air-Liquid Interface

Theis I. So̷lling^*
, Martin P. Andersson
, Safwat Abdel-Azeim
, Ahmed M. El Zohry
, Jesse Lee Beauchamp

^*Corresponding author for this work

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

2 Scopus citations

Abstract

We have studied the interfacial properties of Zn²⁺ vs selected transition metal cations such as Fe²⁺, Cu²⁺, and Cr³⁺ in a water-ethanol mixture using field-induced droplet ionization. This was in particular inspired by the specific surface activity of Zn²⁺ that has been observed on several occasions and a desire to clarify the root cause for this behavior. We have found that Zn²⁺, due to its unique electronic configuration and atomic size, is the only ion of those under study that gives rise to specific speciation at the air-liquid interface with three ethanol molecules attached to the central atom for optimal polarity.

Original language	English
Pages (from-to)	1577-1586
Number of pages	10
Journal	Langmuir
Volume	41
Issue number	3
DOIs	https://doi.org/10.1021/acs.langmuir.4c03115
State	Published - 28 Jan 2025

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Publisher Copyright:
© 2024 American Chemical Society.

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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title = "Transition Metal Ions in Solution: Complexed Ion Speciation at the Air-Liquid Interface",

abstract = "We have studied the interfacial properties of Zn2+ vs selected transition metal cations such as Fe2+, Cu2+, and Cr3+ in a water-ethanol mixture using field-induced droplet ionization. This was in particular inspired by the specific surface activity of Zn2+ that has been observed on several occasions and a desire to clarify the root cause for this behavior. We have found that Zn2+, due to its unique electronic configuration and atomic size, is the only ion of those under study that gives rise to specific speciation at the air-liquid interface with three ethanol molecules attached to the central atom for optimal polarity.",

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AU - So̷lling, Theis I.

AU - Andersson, Martin P.

AU - Abdel-Azeim, Safwat

AU - El Zohry, Ahmed M.

AU - Beauchamp, Jesse Lee

PY - 2025/1/28

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N2 - We have studied the interfacial properties of Zn2+ vs selected transition metal cations such as Fe2+, Cu2+, and Cr3+ in a water-ethanol mixture using field-induced droplet ionization. This was in particular inspired by the specific surface activity of Zn2+ that has been observed on several occasions and a desire to clarify the root cause for this behavior. We have found that Zn2+, due to its unique electronic configuration and atomic size, is the only ion of those under study that gives rise to specific speciation at the air-liquid interface with three ethanol molecules attached to the central atom for optimal polarity.

AB - We have studied the interfacial properties of Zn2+ vs selected transition metal cations such as Fe2+, Cu2+, and Cr3+ in a water-ethanol mixture using field-induced droplet ionization. This was in particular inspired by the specific surface activity of Zn2+ that has been observed on several occasions and a desire to clarify the root cause for this behavior. We have found that Zn2+, due to its unique electronic configuration and atomic size, is the only ion of those under study that gives rise to specific speciation at the air-liquid interface with three ethanol molecules attached to the central atom for optimal polarity.

UR - https://www.scopus.com/pages/publications/85209711627

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JO - Langmuir

JF - Langmuir

IS - 3

ER -

Transition Metal Ions in Solution: Complexed Ion Speciation at the Air-Liquid Interface

Abstract

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ASJC Scopus subject areas

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