Solvent-enabled photodissociation of CO2- in water clusters

Terefe Habteyes; Luis Velarde; Andrei Sanov

doi:10.1016/j.cplett.2006.04.070

Solvent-enabled photodissociation of CO₂^- in water clusters

Terefe Habteyes
, Luis Velarde
, Andrei Sanov

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

26 Scopus citations

Abstract

The photofragmentation of CO₂^- (H₂ O)_m, m = 3-20 at 355 nm yields two types of anionic products: O^-(H₂O)_m-k, 1 ≤ k ≤ 3, and CO₂^- (H₂ O)_{m - k}, 4 ≤ k ≤ 9, depending on the parent cluster size. The O^-(H₂O)_m-k fragments, attributed to the dissociation of hydrated CO₂^-, are dominant for m = 3-7, while the water-evaporation products, CO₂^- (H₂ O)_{m - k}, take precedence for m = 8-20. The dissociation of CO₂^- is proposed to proceed via a hydration-stabilized excited state, originating from a low-lying CO₂^- resonance. In the evaporation channel, the suggested routes include cluster predissociation, CO₂^- photodissociation/recombination, and charge transfer to solvent.

Original language	English (US)
Pages (from-to)	268-272
Number of pages	5
Journal	Chemical Physics Letters
Volume	424
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2006.04.070
State	Published - Jun 24 2006

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/j.cplett.2006.04.070

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title = "Solvent-enabled photodissociation of CO2- in water clusters",

abstract = "The photofragmentation of CO2- (H2 O)m, m = 3-20 at 355 nm yields two types of anionic products: O-(H2O)m-k, 1 ≤ k ≤ 3, and CO2- (H2 O)m - k, 4 ≤ k ≤ 9, depending on the parent cluster size. The O-(H2O)m-k fragments, attributed to the dissociation of hydrated CO2-, are dominant for m = 3-7, while the water-evaporation products, CO2- (H2 O)m - k, take precedence for m = 8-20. The dissociation of CO2- is proposed to proceed via a hydration-stabilized excited state, originating from a low-lying CO2- resonance. In the evaporation channel, the suggested routes include cluster predissociation, CO2- photodissociation/recombination, and charge transfer to solvent.",

author = "Terefe Habteyes and Luis Velarde and Andrei Sanov",

note = "Funding Information: This work is supported by the NSF grant No. CHE-0134631 and the Packard Fellowship in Science and Engineering.",

year = "2006",

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doi = "10.1016/j.cplett.2006.04.070",

language = "English (US)",

volume = "424",

pages = "268--272",

journal = "Chemical Physics Letters",

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TY - JOUR

T1 - Solvent-enabled photodissociation of CO2- in water clusters

AU - Habteyes, Terefe

AU - Velarde, Luis

AU - Sanov, Andrei

N1 - Funding Information: This work is supported by the NSF grant No. CHE-0134631 and the Packard Fellowship in Science and Engineering.

PY - 2006/6/24

Y1 - 2006/6/24

N2 - The photofragmentation of CO2- (H2 O)m, m = 3-20 at 355 nm yields two types of anionic products: O-(H2O)m-k, 1 ≤ k ≤ 3, and CO2- (H2 O)m - k, 4 ≤ k ≤ 9, depending on the parent cluster size. The O-(H2O)m-k fragments, attributed to the dissociation of hydrated CO2-, are dominant for m = 3-7, while the water-evaporation products, CO2- (H2 O)m - k, take precedence for m = 8-20. The dissociation of CO2- is proposed to proceed via a hydration-stabilized excited state, originating from a low-lying CO2- resonance. In the evaporation channel, the suggested routes include cluster predissociation, CO2- photodissociation/recombination, and charge transfer to solvent.

AB - The photofragmentation of CO2- (H2 O)m, m = 3-20 at 355 nm yields two types of anionic products: O-(H2O)m-k, 1 ≤ k ≤ 3, and CO2- (H2 O)m - k, 4 ≤ k ≤ 9, depending on the parent cluster size. The O-(H2O)m-k fragments, attributed to the dissociation of hydrated CO2-, are dominant for m = 3-7, while the water-evaporation products, CO2- (H2 O)m - k, take precedence for m = 8-20. The dissociation of CO2- is proposed to proceed via a hydration-stabilized excited state, originating from a low-lying CO2- resonance. In the evaporation channel, the suggested routes include cluster predissociation, CO2- photodissociation/recombination, and charge transfer to solvent.

UR - https://www.scopus.com/pages/publications/33744935304

UR - https://www.scopus.com/pages/publications/33744935304#tab=citedBy

U2 - 10.1016/j.cplett.2006.04.070

DO - 10.1016/j.cplett.2006.04.070

M3 - Article

AN - SCOPUS:33744935304

SN - 0009-2614

VL - 424

SP - 268

EP - 272

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4-6

ER -

Solvent-enabled photodissociation of CO₂^- in water clusters

Abstract

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