Supporting information: Second-generation ReaxFF water force field (parameters and citation notes)
Non-primary PDF
This ingest is the supporting information PDF for the second-generation ReaxFF water model. The standalone article narrative, validation against experiment, and discussion belong under [[2017zhang-venue-research]]. This file is listed in the maintainer catalog of SI-primary ingests (docs/corpus/NON_PRIMARY_ARTICLE_PAPER_SLUGS.md, section A).
Summary¶
Supporting information for “Second-Generation ReaxFF Water Force Field: Improvements in the Description of Water Density and OH-Anion Diffusion” provides complete ReaxFF parameter tables for the second-generation (2017) water model, ancillary reference material (including completion of selected bibliography entries as noted in the SI), and any additional numerical inputs required to reproduce simulations reported in the parent J. Phys. Chem. C article. The SI does not replace the main paper for scientific interpretation: it is a machine- and human-readable appendix for deploying the published parameterization in LAMMPS or compatible codes.
Downstream users typically need three coordinated artifacts: (i) parameter blocks for bond, angle, torsion, and van der Waals terms as used by the group’s ReaxFF implementation; (ii) charge equilibration settings consistent with the parent publication; and (iii) any training or validation geometries referenced when auditing the fit. This SI focuses on (i) and supporting bibliography completeness, while [[2017zhang-venue-research]] carries the narrative validation against experiment and QM.
Methods¶
Document role. This Supporting Information PDF (papers/Zhang_ReaxFF_water_JPCC_2017_SI.pdf) archives complete ReaxFF parameter blocks for the second-generation water-2017 model; scientific protocol narrative, validation metrics, and discussion live in [[2017zhang-venue-research]].
Molecular dynamics (deployment context). Production ReaxFF molecular dynamics benchmarks in the parent article use LAMMPS-style inputs with periodic bulk-water supercells containing thousands of atoms, NVT (or related canonical) thermostat control near 300 K, femtosecond integration timesteps, and multi-nanosecond production segments after equilibration—exact strings appear in the J. Phys. Chem. B Methods/SI cross-refs rather than in this coefficient listing. Barostat usage, if any density-scans employ NPT, is likewise documented on the parent page. Electric fields and metadynamics/umbrella enhanced sampling are not introduced by this SI file itself.
Force-field training (SI tables). The SI tabulates optimized bond, angle, torsion, and van der Waals parameters plus charge equilibration metadata for water-2017, constituting the machine-readable training output that accompanies the parent parameter optimization narrative.
Static QM / DFT. N/A — DFT training details (functional, basis set, k-point mesh) are summarized on [[2017zhang-venue-research]], not duplicated inside every SI table.
Review scope. N/A — non-primary SI artifact per docs/corpus/NON_PRIMARY_ARTICLE_PAPER_SLUGS.md.
Findings¶
Outcomes. The SI is the authoritative source for numerical coefficients needed to reproduce water-2017 ReaxFF MD in LAMMPS; it does not independently report new mechanistic conclusions.
Comparisons / validation. Claims about density, diffusivity, and acid/base reaction behavior versus experiment belong to [[2017zhang-venue-research]], which cites the benchmark data used during parameter optimization.
Sensitivity / design levers. Users deploying these tables must still match cutoffs, QEq refresh policies, and composition (pH, ionic concentration) to the parent Methods or risk drifting from published validation.
Limitations / outlook. Filename artifacts (“Microsoft Word …”) do not change scientific authority—always pair this PDF with the journal DOI from the parent article for bibliographic integrity.
Corpus honesty. SI-only ingest: treat this slug as coefficient storage; cite [[2017zhang-venue-research]] for prose, figures, and experimental agreement statements.
Limitations¶
The filename reflects a publisher or author export artifact (“Microsoft Word …”); scientific authority is the combined main article + SI. For citations in external documents, prefer the journal article DOI from [[2017zhang-venue-research]], not this PDF alone.
Relevance to group¶
Archives parameters for the group’s ReaxFF aqueous and proton-transfer line used across corrosion, electrochemistry, and electrolyte modeling.
Citations and evidence anchors¶
- Parent article:
[[2017zhang-venue-research]](version-of-record narrative and DOI). SI-only. Deploy water-2017 parameters from this PDF together with[[2017zhang-venue-research]]for validation metrics and discussion.
Reproducibility and corpus locators¶
This note documents where to find primary evidence in-repo; it does not add new scientific claims beyond the cited publication.
Curation hygiene. After substantive edits to this wiki page, Phase 5 chunk identifiers are refreshed by running python3 scripts/build_chunks.py from the repository root so indexes/chunks.jsonl stays aligned with section headings and body text. The updated field in front matter records the last wiki revision date for operator review.
Normalized layer. When present, normalized/papers/{slug}.json mirrors manifest hashes, bibliography fields, and extraction pointers; if pdf_path or PDF bytes change, follow AGENTS.md and docs/PHASE3_RUNBOOK.md to re-profile rather than editing PDFs in place.
Authority chain. For numerical settings (cutoffs, timesteps, ensembles, kinetics), use the peer-reviewed PDF (and publisher Supporting Information) as the authoritative source; this wiki summarizes for navigation and retrieval.