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Record W2005122475 · doi:10.1021/jp0141833

Theoretical Prediction on the Synthesis Reaction Pathway of N<sub>6</sub> (<i>C</i><sub>2</sub><i><sub>h</sub></i>)

2002· article· en· W2005122475 on OpenAlexafffund
Li Jie Wang, Peter L. Warburton, Paul G. Mezey

Bibliographic record

VenueThe Journal of Physical Chemistry A · 2002
Typearticle
Languageen
FieldPhysics and Astronomy
TopicAdvanced Chemical Physics Studies
Canadian institutionsUniversity of Saskatchewan
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsNatural bond orbitalDensity functional theoryCoupled clusterComputational chemistryChemistryMoleculePotential energy surfaceCluster (spacecraft)Physical chemistryThermodynamicsPhysicsOrganic chemistryComputer science

Abstract

fetched live from OpenAlex

The relevant part of the potential energy surface (PES) of reaction leading to N 6 ( C 2 h ) synthesized from HN 3 and N 3 F was investigated. The structures involved on the PES of N 6 were optimized by hybrid density functional theory method. Relative energies were also calculated using coupled cluster single and doubles (CCSD) theory. The barrier height of the synthesis reaction pathway was predicted to be 27.0 kcal/mol at the level of CCSD/6-311++G**//B3LYP/6-311++G**. Because of the sizable barrier and exothermicity, the experimental synthesis of this compound is challenging, but perhaps feasible. The electron densities of these molecules on the PES were calculated, and the results agree with those of natural bond orbital (NBO) analysis. The calculation results provide the theoretical foundation of a suggestion for the experimental synthesis of N 6 as a high energy density material.

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 machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.006
Threshold uncertainty score0.019

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0010.000
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0010.000
Insufficient payload (model declined to judge)0.0060.001

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 head0.008
GPT teacher head0.200
Teacher spread0.192 · 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 source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designTheoretical or conceptual
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

Citations32
Published2002
Admission routes2
Has abstractyes

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