On the propensity for electron transfer in high-energy collisions of iridium complex anions with cesium atoms

Ruth M. Burke; William E. Boxford; Subhasis Panja; Steen Brondsted Nielsen; Caroline E. H. Dessent

doi:10.1016/j.cplett.2007.05.081

On the propensity for electron transfer in high-energy collisions of iridium complex anions with cesium atoms

Ruth M. Burke, William E. Boxford, Subhasis Panja, Steen Brondsted Nielsen, Caroline E. H. Dessent

Chemistry

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

Abstract

Iridium complex anions (IrX62-, IrX5-, IrX4-, K+.IrX62- X = Cl, Br, and K+.IrCl52-) were subjected to high-energy collisions with Cs atoms in an accelerator mass spectrometer. The experiments probed the complex anions' propensity for electron attachment, which was only observed for IrCl5-, IrBr5- and K+.IrCl52-. These observations indicate that electron transfer is controlled by the relative stability of the Ir oxidation state and the availability of low-lying unoccupied molecular orbitals. Formation of IrX52- is notable since these ions are amongst the smallest molecular dianions observed in the gas-phase, while the K+.IrCl53- complex contains the smallest experimentally observed trianion. (c) 2007 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	201-205
Number of pages	5
Journal	Chemical Physics Letters
Volume	442
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2007.05.081
Publication status	Published - 17 Jul 2007

Keywords

MULTIPLY-CHARGED ANIONS
GAS-PHASE
INDUCED DISSOCIATION
IONIC FRAGMENTATION
COULOMB EXPLOSION
METAL-COMPLEX
PHOTODETACHMENT
DETACHMENT
DIANIONS
IDENTIFICATION

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10.1016/j.cplett.2007.05.081

Cite this

@article{93c36c0adca0423ea247b72a6bc2eb0d,

title = "On the propensity for electron transfer in high-energy collisions of iridium complex anions with cesium atoms",

abstract = "Iridium complex anions (IrX62-, IrX5-, IrX4-, K+.IrX62- X = Cl, Br, and K+.IrCl52-) were subjected to high-energy collisions with Cs atoms in an accelerator mass spectrometer. The experiments probed the complex anions' propensity for electron attachment, which was only observed for IrCl5-, IrBr5- and K+.IrCl52-. These observations indicate that electron transfer is controlled by the relative stability of the Ir oxidation state and the availability of low-lying unoccupied molecular orbitals. Formation of IrX52- is notable since these ions are amongst the smallest molecular dianions observed in the gas-phase, while the K+.IrCl53- complex contains the smallest experimentally observed trianion. (c) 2007 Elsevier B.V. All rights reserved.",

keywords = "MULTIPLY-CHARGED ANIONS, GAS-PHASE, INDUCED DISSOCIATION, IONIC FRAGMENTATION, COULOMB EXPLOSION, METAL-COMPLEX, PHOTODETACHMENT, DETACHMENT, DIANIONS, IDENTIFICATION",

author = "Burke, {Ruth M.} and Boxford, {William E.} and Subhasis Panja and Nielsen, {Steen Brondsted} and Dessent, {Caroline E. H.}",

year = "2007",

month = jul,

day = "17",

doi = "10.1016/j.cplett.2007.05.081",

language = "English",

volume = "442",

pages = "201--205",

journal = "Chemical Physics Letters",

issn = "0009-2614",

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TY - JOUR

T1 - On the propensity for electron transfer in high-energy collisions of iridium complex anions with cesium atoms

AU - Burke, Ruth M.

AU - Boxford, William E.

AU - Panja, Subhasis

AU - Nielsen, Steen Brondsted

AU - Dessent, Caroline E. H.

PY - 2007/7/17

Y1 - 2007/7/17

N2 - Iridium complex anions (IrX62-, IrX5-, IrX4-, K+.IrX62- X = Cl, Br, and K+.IrCl52-) were subjected to high-energy collisions with Cs atoms in an accelerator mass spectrometer. The experiments probed the complex anions' propensity for electron attachment, which was only observed for IrCl5-, IrBr5- and K+.IrCl52-. These observations indicate that electron transfer is controlled by the relative stability of the Ir oxidation state and the availability of low-lying unoccupied molecular orbitals. Formation of IrX52- is notable since these ions are amongst the smallest molecular dianions observed in the gas-phase, while the K+.IrCl53- complex contains the smallest experimentally observed trianion. (c) 2007 Elsevier B.V. All rights reserved.

AB - Iridium complex anions (IrX62-, IrX5-, IrX4-, K+.IrX62- X = Cl, Br, and K+.IrCl52-) were subjected to high-energy collisions with Cs atoms in an accelerator mass spectrometer. The experiments probed the complex anions' propensity for electron attachment, which was only observed for IrCl5-, IrBr5- and K+.IrCl52-. These observations indicate that electron transfer is controlled by the relative stability of the Ir oxidation state and the availability of low-lying unoccupied molecular orbitals. Formation of IrX52- is notable since these ions are amongst the smallest molecular dianions observed in the gas-phase, while the K+.IrCl53- complex contains the smallest experimentally observed trianion. (c) 2007 Elsevier B.V. All rights reserved.

KW - MULTIPLY-CHARGED ANIONS

KW - GAS-PHASE

KW - INDUCED DISSOCIATION

KW - IONIC FRAGMENTATION

KW - COULOMB EXPLOSION

KW - METAL-COMPLEX

KW - PHOTODETACHMENT

KW - DETACHMENT

KW - DIANIONS

KW - IDENTIFICATION

U2 - 10.1016/j.cplett.2007.05.081

DO - 10.1016/j.cplett.2007.05.081

M3 - Article

SN - 0009-2614

VL - 442

SP - 201

EP - 205

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4-6

ER -