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Record W4254857943 · doi:10.1002/047084289x.rs095m

Sodium Periodate-Osmium Tetroxide

2001· reference-entry· en· W4254857943 on OpenAlexaff
Andrew G. H. Wee, Baosheng Liu

Bibliographic record

VenueEncyclopedia of Reagents for Organic Synthesis · 2001
Typereference-entry
Languageen
FieldChemistry
TopicChemistry and Stereochemistry Studies
Canadian institutionsUniversity of Regina
Fundersnot available
KeywordsOsmium tetroxideSodium periodatePeriodateChemistryOsmiumSodiumRadiochemistryNuclear chemistryOrganic chemistryRutheniumPhysics

Abstract

fetched live from OpenAlex

(NaIO4) [7790-28-5] INaO4 (MW 213.89) InChI = 1S/HIO4.Na/c2-1(3,4)5;/h(H,2,3,4,5);/q;+1/p-1 InChIKey = JQWHASGSAFIOCM-UHFFFAOYSA-M (OsO4) [20816-12-0] O4Os (MW 254.20) InChI = 1S/4O.Os InChIKey = VUVGYHUDAICLFK-UHFFFAOYSA-N (oxidizing agent for oxidative cleavage of carbon–carbon double bonds3 to give aldehydes and ketones) Physical Data: NaIO4: mp 300 °C (dec); specific gravity 3.865. OsO4: bp 130 °C; mp 40 °C; specific gravity 4.900 at 22 °C. Solubility: NaIO4: sol H2O (14.4 g/100 mL H2O at 25 °C; 38.9 g/100 mL at 51.5 °C), H2SO4, HNO3, acetic acid; insol organic solvents. OsO4: sol alcohol, Et2O, benzene, CCl4, NH3, POCl3, H2O (25%). Form Supplied in: NaIO4: colorless to white tetragonal, efflorescent crystals. OsO4: colorless to pale yellow crystals contained in ampules. Both reagents are readily available. Handling, Storage, and Precautions: NaIO4: irritant; gloves and safety goggles should be worn when handling this oxidant; avoid inhalation of dust and avoid contact of oxidant with combustible matter. OsO4: acrid, chlorine-like odor; irritant; highly corrosive; causes burns to skin, eyes, and respiratory tract; gloves and safety goggles must be worn and this reagent must be handled in a well ventilated fume hood.

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)0.002
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: Not applicable · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: none
Teacher disagreement score0.043
Threshold uncertainty score0.144

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.001
Meta-epidemiology (narrow)0.0050.002
Meta-epidemiology (broad)0.0030.001
Bibliometrics0.0020.001
Science and technology studies0.0020.001
Scholarly communication0.0010.001
Open science0.0050.002
Research integrity0.0010.005
Insufficient payload (model declined to judge)0.0430.025

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 head0.016
GPT teacher head0.242
Teacher spread0.225 · 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 designNot applicable
Domainnot available
GenreOther

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

Citations1
Published2001
Admission routes1
Has abstractyes

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