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Record W2003783490 · doi:10.1107/s0108270101017139

Adducts of 1,1,1-tris(4-hydroxyphenyl)ethane with 1,2-bis(4-pyridyl)ethane and 1,2-bis(4-pyridyl)ethene: continuously interwoven structures in three dimensions

2001· article· en· W2003783490 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueActa Crystallographica Section C Crystal Structure Communications · 2001
Typearticle
Languageen
FieldChemistry
TopicCrystal structures of chemical compounds
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsAdductChemistryTrisHydrogen bondCrystallographyMoleculeStereochemistryMedicinal chemistryOrganic chemistry

Abstract

fetched live from OpenAlex

In the adduct 1,2-bis(4-pyridyl)ethane-1,1,1-tris(4-hydroxyphenyl)ethane (1/2), C12H12)2*2C20H18O3, the bipyridyl component lies across an inversion centre in P-1. The tris-phenol molecules [systematic name: 4,4',4"-(ethane-1,1,1-triyl)triphenol] are linked by O-H...O hydrogen bonds to form sheets built from R4(4)(38) rings, and symmetry-related pairs of sheets are linked by the bipyridyl molecules via O-H...N hydrogen bonds to form open bilayers. Each bilayer is interwoven with two adjacent bilayers, forming a continuous three-dimensional structure. In the adduct 1,2-bis(4-pyridyl)ethene-1,1,1-tris(4-hydroxyphenyl)ethane-methanol (1/1/1), C12H10N2*C20H18O3*CH4O, the molecules are linked by O-H...O and O-H...N hydrogen bonds into three interwoven three-dimensional frameworks, generated by single spiral chains along [010] and [001] and a triple-helical spiral along [100].

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.

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 categoriesMeta-epidemiology (narrow), Research integrity
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.953
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.002
Science and technology studies0.0010.003
Scholarly communication0.0000.001
Open science0.0020.001
Research integrity0.0010.002
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 head0.012
GPT teacher head0.239
Teacher spread0.227 · 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