Reactions of N+4 with rare gases from thermal to 10eV center-of-mass energy: collision-induced dissociation, charge transfer and ligand exchange

Richard H. Schultz; P. B. Armentrout

doi:10.1016/0168-1176(91)85072-t

Reactions of N⁺₄ with rare gases from thermal to 10eV center-of-mass energy: collision-induced dissociation, charge transfer and ligand exchange

Richard H. Schultz
, P. B. Armentrout

University of Utah

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

244 Scopus citations

Abstract

The reactions of N⁺₄ with the rare gases are studied by using guided-ion beam mass spectrometry. A newly designed flow tube source, in which the nascent ions undergo on the order of 10⁵ collisions with the helium flow gas, is used to produce thermalized N⁺₄ ions. This source is described in detail. Collision-induced dissociation of N⁺₄ by the rare gases is used to characterize the internal energy of the ions. The N⁺₂N₂ bond strength thus determined. 1.09 ± 0.06 eV (25.1 ± 1.4 kcal mol^-1), is consistent with 298 K literature values, demonstrating that the ions produced are thermalized. Ligand exchange and charge-transfer reactions are also observed and discussed. The measured threshold for N⁺₂ Ar formation may indicate an N⁺₂ Ar bond strength of 1.05 ± 0.07 eV (24.2 ± 1.7 kcal mol^-1), although there is some controversy in the literature over whether this measurement represents the true thermodynamic threshold.

Original language	English
Pages (from-to)	29-48
Number of pages	20
Journal	International Journal of Mass Spectrometry and Ion Processes
Volume	107
Issue number	1
DOIs	https://doi.org/10.1016/0168-1176(91)85072-t
State	Published - 15 Jun 1991
Externally published	Yes

Bibliographical note

Funding Information:
We acknowledgeB ill Wilcox, Sy Wells, Dennis Romney and Jack Pltts of the Umverslty of Utah ChemistryD epartmentm achmes hop and Mike Scott, Jerry Mitchell and Dale Helsler of the Umversltyo f Utah Chemistry Departmente lectronicss hop for their mvaluablea ssistancme the designa nd constructiono f the flow tube source,a nd Barney Elhson for provldmg us with technicald rawings of his ion extractlono ptics R H S thanks Kent Ervm for his helpful suggestlonsa bout the sourced esigna nd Kevin Crelhn for his assistancem the constructiona nd testingo f the flow tube source Ellen Fisher’s assistancew ith some of the early CID work 1s gratefully acknowledgedW e would also like to thank the reviewerf or brmgmg ref 54 to our attention This work was supportedb y the Air Force Wright

Funding

We acknowledgeB ill Wilcox, Sy Wells, Dennis Romney and Jack Pltts of the Umverslty of Utah ChemistryD epartmentm achmes hop and Mike Scott, Jerry Mitchell and Dale Helsler of the Umversltyo f Utah Chemistry Departmente lectronicss hop for their mvaluablea ssistancme the designa nd constructiono f the flow tube source,a nd Barney Elhson for provldmg us with technicald rawings of his ion extractlono ptics R H S thanks Kent Ervm for his helpful suggestlonsa bout the sourced esigna nd Kevin Crelhn for his assistancem the constructiona nd testingo f the flow tube source Ellen Fisher’s assistancew ith some of the early CID work 1s gratefully acknowledgedW e would also like to thank the reviewerf or brmgmg ref 54 to our attention This work was supportedb y the Air Force Wright

Funders
Centros de Investigación y Desarrollo, Universidad de Valparaíso
Air Force Wright

Access to Document

10.1016/0168-1176(91)85072-t

Cite this

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title = "Reactions of N+4 with rare gases from thermal to 10eV center-of-mass energy: collision-induced dissociation, charge transfer and ligand exchange",

abstract = "The reactions of N+4 with the rare gases are studied by using guided-ion beam mass spectrometry. A newly designed flow tube source, in which the nascent ions undergo on the order of 105 collisions with the helium flow gas, is used to produce thermalized N+4 ions. This source is described in detail. Collision-induced dissociation of N+4 by the rare gases is used to characterize the internal energy of the ions. The N+2N2 bond strength thus determined. 1.09 ± 0.06 eV (25.1 ± 1.4 kcal mol-1), is consistent with 298 K literature values, demonstrating that the ions produced are thermalized. Ligand exchange and charge-transfer reactions are also observed and discussed. The measured threshold for N+2 Ar formation may indicate an N+2 Ar bond strength of 1.05 ± 0.07 eV (24.2 ± 1.7 kcal mol-1), although there is some controversy in the literature over whether this measurement represents the true thermodynamic threshold.",

author = "Schultz, \{Richard H.\} and Armentrout, \{P. B.\}",

note = "Funding Information: We acknowledgeB ill Wilcox, Sy Wells, Dennis Romney and Jack Pltts of the Umverslty of Utah ChemistryD epartmentm achmes hop and Mike Scott, Jerry Mitchell and Dale Helsler of the Umversltyo f Utah Chemistry Departmente lectronicss hop for their mvaluablea ssistancme the designa nd constructiono f the flow tube source,a nd Barney Elhson for provldmg us with technicald rawings of his ion extractlono ptics R H S thanks Kent Ervm for his helpful suggestlonsa bout the sourced esigna nd Kevin Crelhn for his assistancem the constructiona nd testingo f the flow tube source Ellen Fisher{\textquoteright}s assistancew ith some of the early CID work 1s gratefully acknowledgedW e would also like to thank the reviewerf or brmgmg ref 54 to our attention This work was supportedb y the Air Force Wright",

year = "1991",

month = jun,

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doi = "10.1016/0168-1176(91)85072-t",

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journal = "International Journal of Mass Spectrometry and Ion Processes",

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T2 - collision-induced dissociation, charge transfer and ligand exchange

AU - Schultz, Richard H.

AU - Armentrout, P. B.

N1 - Funding Information: We acknowledgeB ill Wilcox, Sy Wells, Dennis Romney and Jack Pltts of the Umverslty of Utah ChemistryD epartmentm achmes hop and Mike Scott, Jerry Mitchell and Dale Helsler of the Umversltyo f Utah Chemistry Departmente lectronicss hop for their mvaluablea ssistancme the designa nd constructiono f the flow tube source,a nd Barney Elhson for provldmg us with technicald rawings of his ion extractlono ptics R H S thanks Kent Ervm for his helpful suggestlonsa bout the sourced esigna nd Kevin Crelhn for his assistancem the constructiona nd testingo f the flow tube source Ellen Fisher’s assistancew ith some of the early CID work 1s gratefully acknowledgedW e would also like to thank the reviewerf or brmgmg ref 54 to our attention This work was supportedb y the Air Force Wright

PY - 1991/6/15

Y1 - 1991/6/15

N2 - The reactions of N+4 with the rare gases are studied by using guided-ion beam mass spectrometry. A newly designed flow tube source, in which the nascent ions undergo on the order of 105 collisions with the helium flow gas, is used to produce thermalized N+4 ions. This source is described in detail. Collision-induced dissociation of N+4 by the rare gases is used to characterize the internal energy of the ions. The N+2N2 bond strength thus determined. 1.09 ± 0.06 eV (25.1 ± 1.4 kcal mol-1), is consistent with 298 K literature values, demonstrating that the ions produced are thermalized. Ligand exchange and charge-transfer reactions are also observed and discussed. The measured threshold for N+2 Ar formation may indicate an N+2 Ar bond strength of 1.05 ± 0.07 eV (24.2 ± 1.7 kcal mol-1), although there is some controversy in the literature over whether this measurement represents the true thermodynamic threshold.

AB - The reactions of N+4 with the rare gases are studied by using guided-ion beam mass spectrometry. A newly designed flow tube source, in which the nascent ions undergo on the order of 105 collisions with the helium flow gas, is used to produce thermalized N+4 ions. This source is described in detail. Collision-induced dissociation of N+4 by the rare gases is used to characterize the internal energy of the ions. The N+2N2 bond strength thus determined. 1.09 ± 0.06 eV (25.1 ± 1.4 kcal mol-1), is consistent with 298 K literature values, demonstrating that the ions produced are thermalized. Ligand exchange and charge-transfer reactions are also observed and discussed. The measured threshold for N+2 Ar formation may indicate an N+2 Ar bond strength of 1.05 ± 0.07 eV (24.2 ± 1.7 kcal mol-1), although there is some controversy in the literature over whether this measurement represents the true thermodynamic threshold.

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