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Record W3202671875 · doi:10.1126/science.abg3091

Imaging the short-lived hydroxyl-hydronium pair in ionized liquid water

2021· article· en· W3202671875 on OpenAlexfundno aff
Ming‐Fu Lin, Narendra Singh, Shiheng Liang, Mianzhen Mo, J. Pedro F. Nunes, Kathryn Ledbetter, Jie Yang, M. Kozina, Stephen Weathersby, Amy A. Cordones, Thomas Wolf, C. D. Pemmaraju, Matthias Ihme, Xijie Wang

Bibliographic record

VenueScience · 2021
Typearticle
Languageen
FieldPhysics and Astronomy
TopicSpectroscopy and Quantum Chemical Studies
Canadian institutionsnot available
FundersDivision of Materials Sciences and EngineeringOffice of ScienceBasic Energy SciencesNational Energy Research Scientific Computing CenterDeutsche ForschungsgemeinschaftSLAC National Accelerator LaboratoryYork UniversityFusion Energy SciencesU.S. Department of Energy
KeywordsHydroniumRadiolysisChemistryIonizationDissociation (chemistry)PhotochemistrySelf-ionization of waterOxygenChemical physicsSolvated electronProtonElectron transferMetastabilityFemtosecondHydrogen bondIntermolecular forceRadicalIonPhysical chemistryMoleculeLaserOrganic chemistry

Abstract

fetched live from OpenAlex

Capturing OH(H 3 O + ) in ionized water Recent advances in liquid-phase ultrafast electron diffraction techniques make it possible to observe what has only been theoretically presumed to occur at short times upon interaction of ionizing radiation with liquid water. Lin et al . provide direct evidence for capturing the short-lived radical-cation pair OH(H 3 O + ), which has been hypothesized for years to form after ionization of liquid water but was not structurally resolved previously (see the Perspective by Cao et al .). The authors trace dissociation and subsequent nonradiative structural relaxation around the ionization center. —YS

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.027
Threshold uncertainty score0.298

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.012
GPT teacher head0.269
Teacher spread0.258 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations73
Published2021
Admission routes1
Has abstractyes

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