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Bond rearrangement during Coulomb explosion of water molecules

Journal Article · · Physical Review A
 [1];  [2];  [2];  [3];  [3];  [4];  [2];  [2]
  1. Kansas State Univ., Manhattan, KS (United States); DOE/OSTI
  2. Kansas State Univ., Manhattan, KS (United States)
  3. Augustana Univ., Sioux Falls, SD (United States)
  4. Kansas State Univ., Manhattan, KS (United States); Univ. Nacional Autónoma de Mexico, Morelos (Mexico)
+ Show Author Affiliations
Bond rearrangement, namely the dissociation of water ions into H2+ + (q – 1)+ (q = 1–4) following fast ion-impact ionization, unexpectedly occurs following multiple ionization of water in spite of the presumably fast “Coulomb explosion” of the transient molecular ion. Furthermore, the branching ratio of bond rearrangement is found to be nearly equal for each level of ionization, q. In addition, formation of H2+ is more than twice as likely to occur from the lighter water isotopologue H2O+ than D2+ from D2O+. Furthermore, these findings are consistent with the ground state dissociation mechanism in which a fast projection of the ground state nuclear wave function onto the vibrational continuum of the cation potential energy surface is sometimes followed by H2+ formation.
Research Organization:
Kansas State Univ., Manhattan, KS (United States)
Sponsoring Organization:
National Science Foundation; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division
Grant/Contract Number:
FG02-86ER13491
OSTI ID:
1610046
Alternate ID(s):
OSTI ID: 1490138
Journal Information:
Physical Review A, Journal Name: Physical Review A Journal Issue: 1 Vol. 99; ISSN PLRAAN; ISSN 2469-9926
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (1)

Strong-field-induced bond rearrangement in triatomic molecules journal May 2019

Figures / Tables (5)

FIG. 1(p. 3)figure FIG. 1
FIG. 2(p. 4)figure FIG. 2
TABLE I(p. 5)table TABLE I
FIG. 3(p. 6)figure FIG. 3
FIG. 4(p. 6)figure FIG. 4

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Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
atomic & molecular collisions
clusters & ions
molecules
optics
physics
scattering of atoms