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Record W2078541303 · doi:10.1021/ic000923v

Synthesis of a Spin-Coupled, Mixed-Metal Double Square Grid Complex [(poap-H)<sub>4</sub>Cu(II)<sub>3</sub>Fe(III)(NO<sub>3</sub>)]<sub>2</sub>(ClO<sub>4</sub>)<sub>4</sub>(NO<sub>3</sub>)<sub>4</sub>·12H<sub>2</sub>O (poap = N<sup>3</sup>-(2-pyridoyl)-2-pyridinecarboxamidrazone) with an <i>S</i> = 3 Ground State, from a Mononuclear Fe(III) Precursor Complex

2001· article· en· W2078541303 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

VenueInorganic Chemistry · 2001
Typearticle
Languageen
FieldMaterials Science
TopicMagnetism in coordination complexes
Canadian institutionsMemorial University of Newfoundland
FundersEngineering and Physical Sciences Research Council
KeywordsChemistryAntiferromagnetismCopperCrystallographyPerchlorateMetalSpin (aerodynamics)FerromagnetismLigand (biochemistry)Magnetic susceptibilitySquare (algebra)Inorganic chemistryStereochemistryCondensed matter physicsIonPhysics

Abstract

fetched live from OpenAlex

The mononuclear, high-spin Fe(III) complex [Fe(Hpoap-H)(NO3)(H2O)2](NO3)2 acts as a ligand and reacts with copper(II) perchlorate to produce the spin-coupled, mixed-metal, dimeric octanuclear complex [(poap-H)4Cu3Fe(NO3)]2(ClO4)4(NO3)4·12H2O, which contains three Cu(II) centers and one high-spin Fe(III) center in an alkoxy-bridged square gridlike structural arrangement within each subunit. Variable temperature magnetic data indicate antiferromagnetic exchange between copper pairs and ferromagnetic exchange between Fe−Cu pairs.

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)0.008
metaresearch head score (Gemma)0.004
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Meta-epidemiology (broad), Science and technology studies, Scholarly communication, Open science, Research integrity, Insufficient payload (model declined to judge)
Consensus categoriesMeta-epidemiology (narrow), Science and technology studies, Open science, Research integrity, Insufficient payload (model declined to judge)
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 score0.022
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0080.004
Meta-epidemiology (narrow)0.0150.017
Meta-epidemiology (broad)0.0150.006
Bibliometrics0.0040.012
Science and technology studies0.0070.009
Scholarly communication0.0060.009
Open science0.0140.009
Research integrity0.0070.010
Insufficient payload (model declined to judge)0.0010.007

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 head0.014
GPT teacher head0.221
Teacher spread0.207 · 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