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Record W2157063862 · doi:10.1002/ange.201409800

Chemie frustrierter Lewis‐Paare: Entwicklung und Perspektiven

2015· article· de· W2157063862 on OpenAlexaff
Douglas W. Stephan, Gerhard Erker

Bibliographic record

VenueAngewandte Chemie · 2015
Typearticle
Languagede
FieldChemistry
TopicOrganoboron and organosilicon chemistry
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsChemistryLewis acids and basesCatalysisOrganic chemistry

Abstract

fetched live from OpenAlex

Abstract Der Begriff “frustrierte Lewis‐Paare” (FLPs) bezeichnet Kombinationen von Lewis‐Säuren und Lewis‐Basen in Lösung, die aufgrund sterischer oder elektronischer Faktoren an der Bildung eines stabilen Addukts gehindert werden. Die verbleibende Lewis‐Azidität und ‐Basizität ermöglicht den Zugang zu neuen kooperativen Reaktionen mit zugesetzten Substraten. Die Fixierung und Aktivierung von kleinen Molekülen durch FLPs führte zur Entdeckung einer Vielzahl von neuen Reaktionen und ungewöhnlichen Reaktionswegen. Die Aktivierung von Diwasserstoff und die anschließende Umsetzung in metallfreien katalytischen Hydrierungsreaktionen ist ein häufig beobachtetes Merkmal von FLPs. In diesem Aufsatz wird der aktuelle Stand dieses jungen Forschungsgebietes der Chemie beschrieben und die zukünftige Ausrichtung des sich rasch weiterentwickelnden Konzepts der frustrierten Lewis‐Paare betrachtet.

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)0.001
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: Theoretical or conceptual
GenreCandidate signal: Review · Consensus signal: none
Teacher disagreement score0.003
Threshold uncertainty score0.010

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0010.001
Scholarly communication0.0010.002
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0030.001

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 head0.027
GPT teacher head0.264
Teacher spread0.237 · 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
GenreReview

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

Citations527
Published2015
Admission routes1
Has abstractyes

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