A photoionization study of the van der Waals molecule C2H4 · HCl

E. A. Walters; J. R. Grover; M. G. White

doi:10.1007/BF01432502

A photoionization study of the van der Waals molecule C₂H₄ · HCl

E. A. Walters
, J. R. Grover
, M. G. White

Chemistry

University of New Mexico
Brookhaven National Laboratory

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

13 Scopus citations

Abstract

The dissociation energy of the C₂H₄ · HCl van der Waals complex was determined to be 3.18±0.73 kcal mol^-1 by a dissociative photoionization technique. C₂H₄ · HCl was produced by free expansion of a 1:4 mixture of C₂H₄ in HCl and the clusters were ionized with tunable synchrotron radiation. The photoionization efficiency function of (C₂H₄ · HCl)⁺ from C₂H₄ · HCl was determined between 600 and 1,300 Å and the onset for (C₂H₄ · HCl)⁺ was established as 1,163±2 Å = 10.66±0.02 eV; these values give ΔH_f⁰(C₂H₄ · HCl) = -10.7±0.7 kcal mol^-1 and ΔH_f⁰(C₂H₄·HCl⁺)=235.1±0.9 kcal mol^-1. A complex ion dissociation energy D₀(C₂H₄ · HCl⁺) = -0.3±0.9 kcal mol^-1 was calculated from the results. The major features on the PIE curve for C₂H₄ · HCl⁺ can be analyzed in terms of the known energetic features of C₂H₄⁺ and HCl. An extended energy diagram for the C₂H₄ + HCl system is presented.

Original language	English
Pages (from-to)	103-110
Number of pages	8
Journal	European Physical Journal D
Volume	4
Issue number	1
DOIs	https://doi.org/10.1007/BF01432502
State	Published - Mar 1986

Keywords

3.80.Eh
35.20.Gs
36.40.+d

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10.1007/BF01432502

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@article{113aca6f9ff84743ac5e6102336f6ed5,

title = "A photoionization study of the van der Waals molecule C2H4 · HCl",

abstract = "The dissociation energy of the C2H4 · HCl van der Waals complex was determined to be 3.18±0.73 kcal mol-1 by a dissociative photoionization technique. C2H4 · HCl was produced by free expansion of a 1:4 mixture of C2H4 in HCl and the clusters were ionized with tunable synchrotron radiation. The photoionization efficiency function of (C2H4 · HCl)+ from C2H4 · HCl was determined between 600 and 1,300 {\AA} and the onset for (C2H4 · HCl)+ was established as 1,163±2 {\AA} = 10.66±0.02 eV; these values give ΔHf0(C2H4 · HCl) = -10.7±0.7 kcal mol-1 and ΔHf0(C2H4·HCl+)=235.1±0.9 kcal mol-1. A complex ion dissociation energy D0(C2H4 · HCl+) = -0.3±0.9 kcal mol-1 was calculated from the results. The major features on the PIE curve for C2H4 · HCl+ can be analyzed in terms of the known energetic features of C2H4+ and HCl. An extended energy diagram for the C2H4 + HCl system is presented.",

keywords = "3.80.Eh, 35.20.Gs, 36.40.+d",

author = "Walters, \{E. A.\} and Grover, \{J. R.\} and White, \{M. G.\}",

year = "1986",

month = mar,

doi = "10.1007/BF01432502",

language = "English",

volume = "4",

pages = "103--110",

journal = "European Physical Journal D",

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T1 - A photoionization study of the van der Waals molecule C2H4 · HCl

AU - Walters, E. A.

AU - Grover, J. R.

AU - White, M. G.

PY - 1986/3

Y1 - 1986/3

N2 - The dissociation energy of the C2H4 · HCl van der Waals complex was determined to be 3.18±0.73 kcal mol-1 by a dissociative photoionization technique. C2H4 · HCl was produced by free expansion of a 1:4 mixture of C2H4 in HCl and the clusters were ionized with tunable synchrotron radiation. The photoionization efficiency function of (C2H4 · HCl)+ from C2H4 · HCl was determined between 600 and 1,300 Å and the onset for (C2H4 · HCl)+ was established as 1,163±2 Å = 10.66±0.02 eV; these values give ΔHf0(C2H4 · HCl) = -10.7±0.7 kcal mol-1 and ΔHf0(C2H4·HCl+)=235.1±0.9 kcal mol-1. A complex ion dissociation energy D0(C2H4 · HCl+) = -0.3±0.9 kcal mol-1 was calculated from the results. The major features on the PIE curve for C2H4 · HCl+ can be analyzed in terms of the known energetic features of C2H4+ and HCl. An extended energy diagram for the C2H4 + HCl system is presented.

AB - The dissociation energy of the C2H4 · HCl van der Waals complex was determined to be 3.18±0.73 kcal mol-1 by a dissociative photoionization technique. C2H4 · HCl was produced by free expansion of a 1:4 mixture of C2H4 in HCl and the clusters were ionized with tunable synchrotron radiation. The photoionization efficiency function of (C2H4 · HCl)+ from C2H4 · HCl was determined between 600 and 1,300 Å and the onset for (C2H4 · HCl)+ was established as 1,163±2 Å = 10.66±0.02 eV; these values give ΔHf0(C2H4 · HCl) = -10.7±0.7 kcal mol-1 and ΔHf0(C2H4·HCl+)=235.1±0.9 kcal mol-1. A complex ion dissociation energy D0(C2H4 · HCl+) = -0.3±0.9 kcal mol-1 was calculated from the results. The major features on the PIE curve for C2H4 · HCl+ can be analyzed in terms of the known energetic features of C2H4+ and HCl. An extended energy diagram for the C2H4 + HCl system is presented.

KW - 3.80.Eh

KW - 35.20.Gs

KW - 36.40.+d

UR - https://www.scopus.com/pages/publications/0008637080

U2 - 10.1007/BF01432502

DO - 10.1007/BF01432502

M3 - Article

AN - SCOPUS:0008637080

SN - 1434-6060

VL - 4

SP - 103

EP - 110

JO - European Physical Journal D

JF - European Physical Journal D

IS - 1

ER -

A photoionization study of the van der Waals molecule C₂H₄ · HCl

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Keywords

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