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Record W2164357436 · doi:10.1002/anie.200604602

A Solid‐State <sup>17</sup>O NMR Study of Local Order and Crystallinity in Amine‐Templated Mesoporous Nb Oxide

2007· article· en· W2164357436 on OpenAlexaff
Boris O. Skadtchenko, Yuxiang Rao, Tom F. Kemp, Prodipta Bhattacharya, P. A. Thomas, Michel L. Trudeau, Mark E. Smith, Dave M. Antonelli

Bibliographic record

VenueAngewandte Chemie International Edition · 2007
Typearticle
Languageen
FieldMaterials Science
TopicMesoporous Materials and Catalysis
Canadian institutionsHydro-QuébecUniversity of Windsor
Fundersnot available
KeywordsMesoporous materialCrystallinityMagic angle spinningMaterials scienceOxygenOxideOxygen-17Mesoporous silicaSolid-state nuclear magnetic resonanceSpectroscopyNuclear magnetic resonance spectroscopyCrystallographyChemical engineeringChemistryNuclear magnetic resonanceCatalysisOrganic chemistryPhysics

Abstract

fetched live from OpenAlex

Order locally: 17O magic-angle-spinning NMR spectroscopy of bulk sol–gel-prepared Nb2O5 and mesoporous, template-free Nb2O5 (see picture) shows very high local order in the mesoporous sample. The oxygen atoms are coordinated only as ONb2 in contrast with bulk phases in which the oxygen atoms are always present in a mixture of ONb2 and ONb3 coordination environments.

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)0.001
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 score0.007
Threshold uncertainty score0.823

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
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)0.0010.000

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 head0.013
GPT teacher head0.282
Teacher spread0.269 · 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

Citations13
Published2007
Admission routes1
Has abstractyes

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