{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-12T11:52:15Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 20.6, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a09574-fcc7-79c0-a67c-708fec6e065c\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: palladium(II) acetylacetonate\nSense to describe: (none recorded)\nDomain code: PHY.MAT\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# B", "usd": 0.0, "recall": true }, "codex": { "seconds": 68.3, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a09574-fcd2-7380-8f4c-5a1bdd726988\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: palladium(II) acetylacetonate\nRegistry id: vr.tr.palladium-ii-acetylacetonate\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nName" } }, "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-06T12:00:00Z", "ingestedAt": "2026-10-06T08:53:40+00:00", "fields": [ "agent_conduct", "ethics", "failure_modes_and_hazards", "owners", "standards_and_regulation", "visual_identification" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T10:10:28+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q2112049", "registryId": "vr.tr.palladium-ii-acetylacetonate", "name": "palladium(II) acetylacetonate", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.MAT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q2112049/", "model": { "registry_id": "vr.tr.palladium-ii-acetylacetonate", "name": "palladium(II) acetylacetonate", "purpose": "Enable an agent to recognise palladium(II) acetylacetonate, assess the identity and condition of a particular sample, and determine its suitability for an intended use.", "definition": "Palladium(II) acetylacetonate is a neutral coordination compound, Pd(C5H7O2)2, in which two bidentate acetylacetonate anions coordinate a palladium(II) centre through four oxygen atoms in a square-planar arrangement.", "scope_statement": "This model owns the substance identity of palladium(II) acetylacetonate and the composition, condition, performance constraints, and handling evidence associated with its samples, while distinguishing the substance from commercial formulations and processes that use it.", "in_scope": [ "Palladium oxidation state, acetylacetonate ligand identity, and coordination composition", "Substance identifiers and evidence connecting names to the registered identity", "Sample purity, palladium content, residual solvents, water, and other impurities", "Physical state, solubility, thermal behaviour, and evidence of degradation under stated conditions", "Suitability as a palladium precursor for a specified application", "Sample-specific hazard, storage, exposure-control, and disposal information" ], "out_of_scope": [ "Elemental palladium and independently identified palladium compounds", "Free acetylacetone and acetylacetonate complexes of other metals", "Commercial mixtures, solutions, and supported formulations as complete products", "Full synthesis, catalytic reaction, and deposition process models", "Equipment used to analyse, handle, or process the substance", "Facility-wide chemical safety and waste-management systems" ], "distinguishing_features": [ "Identity evidence must establish palladium in the stated +II oxidation state; detecting palladium alone does not distinguish this substance from metal or another palladium compound.", "Ligand evidence must identify coordinated acetylacetonate rather than acetate, free acetylacetone, or a different beta-diketonate.", "Composition evidence must support the named coordination compound rather than a physical mixture of palladium species and ligand.", "A matching product name must be checked against analytical and identifier evidence; a solution or supported preparation is related to this substance but is not an equivalent neat sample.", "Any colour or appearance match is supporting evidence only and must not substitute for chemical identification." ], "characteristics": [ { "name": "Substance identifier reconciliation", "kind": "relation", "unit_or_values": "Registry id vr.tr.palladium-ii-acetylacetonate linked to verified CAS, EC, PubChem, and supplier identifiers where available", "why_it_matters": "Prevents names, product records, and safety documents for different palladium species or formulations from being combined." }, { "name": "Palladium oxidation-state assignment", "kind": "category", "unit_or_values": "Assigned oxidation state, supporting method, and confidence", "why_it_matters": "Separates the intended palladium(II) compound from reduced or otherwise altered palladium species." }, { "name": "Ligand identity and coordination composition", "kind": "category", "unit_or_values": "Identified ligands, ligand-to-palladium ratio, assigned formula, and analytical evidence", "why_it_matters": "Distinguishes acetylacetonate from similarly named ligands and tests whether the sample matches the registered substance." }, { "name": "Compound assay", "kind": "measurement", "unit_or_values": "% by mass or other explicitly stated assay basis, with method and uncertainty", "why_it_matters": "A purity value is interpretable only when the measured component and assay basis are known." }, { "name": "Palladium content", "kind": "measurement", "unit_or_values": "% Pd by mass, with method and sample basis", "why_it_matters": "Supports palladium dosing and material accounting without treating metal content as proof of compound purity." }, { "name": "Water, residual solvent, and impurity profile", "kind": "measurement", "unit_or_values": "% by mass or mg/kg for identified components, with detection limits", "why_it_matters": "These components can change effective loading, handling behaviour, and compatibility with the intended application." }, { "name": "Sample presentation and physical condition", "kind": "state", "unit_or_values": "Neat solid, solution, supported preparation, or other documented presentation; appearance and observed changes", "why_it_matters": "Connects observations and measurements to the actual material being handled." }, { "name": "Solubility under intended conditions", "kind": "measurement", "unit_or_values": "g/L or mol/L, with solvent composition, temperature, equilibration time, and evidence of chemical stability", "why_it_matters": "Determines whether a specified solution can be prepared without confusing dissolution with chemical conversion." }, { "name": "Thermal transition and decomposition behaviour", "kind": "measurement", "unit_or_values": "Temperature in °C or K, mass change in %, atmosphere, pressure, heating rate, and event assignment", "why_it_matters": "Distinguishes melting, solvent loss, volatilisation, and decomposition when evaluating thermal use." }, { "name": "Storage and exposure history", "kind": "state", "unit_or_values": "Recorded temperature, atmosphere, light and moisture exposure, container condition, and elapsed time", "why_it_matters": "Helps determine whether historical analytical evidence still represents the current sample." }, { "name": "Applicable hazard and handling classification", "kind": "category", "unit_or_values": "Verified classification and control requirements with jurisdiction, document date, and formulation scope", "why_it_matters": "Makes handling decisions traceable to evidence applicable to the sample." }, { "name": "Application acceptance status", "kind": "state", "unit_or_values": "Unassessed, accepted, conditionally accepted, or rejected against named criteria", "why_it_matters": "Avoids treating general chemical identity or supplier grade as sufficient evidence of fitness for every use." } ], "affordances": [ "Reconcile a sample label and analytical evidence with the registered substance identity.", "Compare batches against application-specific purity, palladium-content, and impurity requirements.", "Calculate sample quantity for a target palladium amount using a verified assay basis.", "Assess whether proposed dissolution or thermal-processing conditions have adequate supporting evidence.", "Flag samples for reassessment when storage history or observations suggest chemical change.", "Select documented handling and waste routes applicable to the actual sample and jurisdiction." ], "agent_conduct": { "may": [ "Describe palladium(II) acetylacetonate as a catalyst precursor and materials-deposition source.", "Report hazards and handling rules from safety data sheets." ], "must_not": [ "Handle the powder without the protection its safety data sheet requires.", "Dispose of palladium-containing waste in drains instead of recovery or hazardous waste routes.", "Mislabel its purity or identity in trade." ], "requires_human": [ "Approving disposal or recovery of precious-metal waste." ] }, "ethics": { "considerations": [ "Precious-metal mining has heavy social and environmental costs, so recovery matters.", "Workers need protection from sensitizing metal compounds." ], "affected_parties": [ "Laboratory and plant workers", "Mining communities", "Waste handlers" ] }, "owners": { "steward": "The laboratory or business that holds it; chemical safety authorities regulate supply and use.", "master_systems": [ "National chemical inventories" ] }, "visual_identification": [ "A yellow crystalline powder.", "Supplied in sealed bottles labelled Pd(acac)2." ], "failure_modes_and_hazards": [ "Skin and respiratory irritation or sensitization.", "Environmental loss of palladium." ], "standards_and_regulation": [ "Globally Harmonized System of Classification and Labelling of Chemicals (GHS), United Nations." ], "what_it_is_for": [ "This compound is encountered in chemical research as a palladium precursor for preparing catalysts and other coordination compounds.", "It is also used in materials research to introduce palladium into particles, coatings, or supported materials." ] }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q2112049: palladium(II) acetylacetonate", "url": "https://www.wikidata.org/wiki/Q2112049", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Palladium(II) bis(acetylacetonate)", "url": "https://en.wikipedia.org/wiki/Palladium%28II%29_bis%28acetylacetonate%29", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "palladium-acetylacetonate-identity", "name": "Palladium acetylacetonate identity", "description": "Evidence that the named material is the intended palladium(II) acetylacetonate substance.", "rationale": "Neither a palladium assay nor a similar chemical name establishes the oxidation state and ligand identity required by this registry entry.", "layers": [ { "id": "coordination-identity", "name": "Coordination identity", "description": "Establishes the metal, oxidation-state assignment, and coordinated ligand composition.", "findings": [ { "id": "metal-and-ligand-confirmation", "name": "Metal and ligand confirmation", "description": "Record evidence supporting palladium(II) coordinated by acetylacetonate and identify the limits of that evidence.", "questions": [ { "text": "What analytical evidence establishes the palladium oxidation-state assignment and distinguishes coordinated acetylacetonate from free acetylacetone or acetate?", "kind": "definition", "id": "metal-and-ligand-confirmation-q01" }, { "text": "What composition and structural evidence distinguishes the intended compound from a mixture or chemically altered palladium species?", "kind": "boundary", "id": "metal-and-ligand-confirmation-q02" } ] } ] }, { "id": "identifier-and-form-boundaries", "name": "Identifier and form boundaries", "description": "Connects authoritative identity records while separating the substance from product presentations.", "findings": [ { "id": "identity-record-reconciliation", "name": "Identity record reconciliation", "description": "Record verified identifiers, naming variants, and whether each referenced record describes the neat compound or a particular preparation.", "questions": [ { "text": "Which read sources establish the CAS number, EC number, PubChem CID, formula, and synonyms for this exact substance?", "kind": "provenance", "id": "identity-record-reconciliation-q01" }, { "text": "Does the sample record describe neat palladium(II) acetylacetonate, a solvate, a solution, or a supported formulation, and which neighbouring model owns that preparation?", "kind": "boundary", "id": "identity-record-reconciliation-q02" } ] } ] } ] }, { "id": "batch-composition-and-palladium-accounting", "name": "Batch composition and palladium accounting", "description": "Characterises how much intended compound and palladium a sample contains, together with relevant contaminants.", "rationale": "Compound purity, metal content, and usable palladium loading answer different questions and must remain distinguishable.", "layers": [ { "id": "assay-basis", "name": "Assay basis", "description": "Makes purity claims and palladium measurements comparable and usable.", "findings": [ { "id": "compound-assay-versus-metal-content", "name": "Compound assay versus metal content", "description": "Record compound assay and palladium content separately, including whether values are measured, calculated, or supplier specifications.", "questions": [ { "text": "What does the reported purity percentage measure, and is it expressed on an as-received, dry, or other basis?", "kind": "measurement", "id": "compound-assay-versus-metal-content-q01" }, { "text": "Which verified palladium-content value and uncertainty should be used to calculate the sample mass needed for the intended palladium loading?", "kind": "action", "id": "compound-assay-versus-metal-content-q02" } ] } ] }, { "id": "contaminants-and-lot-evidence", "name": "Contaminants and lot evidence", "description": "Tracks impurities and the evidence connecting analytical results to a particular sample.", "findings": [ { "id": "application-relevant-impurities", "name": "Application-relevant impurities", "description": "Record measured water, residual solvents, free ligand, and other relevant contaminants without assuming that unreported components are absent.", "questions": [ { "text": "Which contaminants were measured, by which methods, and with what detection limits or uncertainty?", "kind": "measurement", "id": "application-relevant-impurities-q01" }, { "text": "Which certificate, lot identifier, sampling date, and subsequent handling history establish that these results apply to the current sample?", "kind": "provenance", "id": "application-relevant-impurities-q02" } ] } ] } ] }, { "id": "physical-behaviour-and-chemical-integrity", "name": "Physical behaviour and chemical integrity", "description": "Connects dissolution, heating, and storage conditions to the observed state and chemical integrity of the compound.", "rationale": "A sample may appear to dissolve or undergo a thermal transition while changing chemical identity, which affects precursor use.", "layers": [ { "id": "dissolution-and-solution-state", "name": "Dissolution and solution state", "description": "Separates measured solubility from solution preparation and subsequent chemical change.", "findings": [ { "id": "solvent-dependent-behaviour", "name": "Solvent-dependent behaviour", "description": "Record solvent-specific dissolution evidence and whether the resulting solution retains the intended compound.", "questions": [ { "text": "What solubility or achievable concentration is supported for the intended solvent composition and temperature?", "kind": "measurement", "id": "solvent-dependent-behaviour-q01" }, { "text": "What evidence shows whether the dissolved material retains its coordination identity over the intended preparation and use period?", "kind": "measurement", "id": "solvent-dependent-behaviour-q02" } ] } ] }, { "id": "thermal-and-storage-response", "name": "Thermal and storage response", "description": "Interprets thermal events and changes associated with sample history.", "findings": [ { "id": "transition-and-degradation-evidence", "name": "Transition and degradation evidence", "description": "Record observed thermal events, storage changes, and the measurements needed to distinguish physical change from decomposition.", "questions": [ { "text": "Which reported thermal events represent melting, solvent loss, volatilisation, or decomposition, and under what atmosphere, pressure, and heating rate?", "kind": "measurement", "id": "transition-and-degradation-evidence-q01" }, { "text": "Which storage exposures or observed changes require renewed identity or assay checks before this sample is used?", "kind": "action", "id": "transition-and-degradation-evidence-q02" } ] } ] } ] }, { "id": "precursor-use-and-handling-decisions", "name": "Precursor use and handling decisions", "description": "Connects sample evidence to application acceptance and documented handling requirements.", "rationale": "The identity of a palladium precursor alone does not establish its performance or the controls appropriate to its actual formulation and use.", "layers": [ { "id": "application-fitness", "name": "Application fitness", "description": "Evaluates the sample against the requirements of a specified palladium-precursor application.", "findings": [ { "id": "intended-use-acceptance", "name": "Intended-use acceptance", "description": "Record the proposed role, acceptance criteria, and evidence supporting use without treating the precursor as the active species by default.", "questions": [ { "text": "What role is proposed for palladium(II) acetylacetonate, and which assay, impurity, solubility, or thermal criteria determine sample acceptance?", "kind": "action", "id": "intended-use-acceptance-q01" }, { "text": "Where does the substance model end and the model of activation, catalysis, deposition, or another transformation begin?", "kind": "boundary", "id": "intended-use-acceptance-q02" } ] } ] }, { "id": "exposure-storage-and-waste", "name": "Exposure, storage, and waste", "description": "Associates handling decisions with current evidence for the substance and its actual presentation.", "findings": [ { "id": "applicable-controls", "name": "Applicable controls", "description": "Record sourced hazard classifications, exposure guidance, incompatibilities, storage instructions, and waste requirements with their applicability limits.", "questions": [ { "text": "Which current safety documents and jurisdiction-specific sources support the classifications, exposure limits if established, and handling controls for this sample?", "kind": "provenance", "id": "applicable-controls-q01" }, { "text": "What documented storage, spill-response, and palladium-containing waste or recovery route applies to the actual material and its contaminants?", "kind": "action", "id": "applicable-controls-q02" } ] } ] } ] }, { "id": "evidence-and-external-alignment", "name": "Evidence and external alignment", "description": "What the world already says about this thing, gathered so the model can be checked against it.", "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.", "layers": [ { "id": "reported-evidence", "name": "Reported evidence", "description": "Findings from the breadth pass, kept separate from the structural claims.", "findings": [ { "id": "evidence-confidence-notes", "name": "Check these first", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "This description is recalled knowledge, not a report of sources consulted.", "Verify melting or decomposition temperatures, solubility and volatility against measurements with stated conditions.", "Check the relevant supplier safety data sheet for grade-specific purity, hazard classification, handling requirements and applicable exposure limits." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of palladium(II) acetylacetonate this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-identifiers", "name": "Identifiers and schemes", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "scheme": "CAS Registry Number", "value_or_pattern": "14024-61-4", "note": "Identifies palladium(II) acetylacetonate." }, { "scheme": "Molecular formula", "value_or_pattern": "C10H14O4Pd", "note": "Commonly abbreviated Pd(acac)2; acac denotes the acetylacetonate anion." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of palladium(II) acetylacetonate this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-real-world-use", "name": "Real-world use", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Precursor to palladium catalysts used in organic synthesis.", "Precursor for preparing palladium nanoparticles and supported palladium materials.", "Palladium source in chemical vapour deposition processes." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of palladium(II) acetylacetonate this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-measurements", "name": "Typical measurements", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "quantity": "Molar mass", "typical_range": "304.64", "unit": "g/mol" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of palladium(II) acetylacetonate this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-failure-modes-and-hazards", "name": "Failure modes and hazards", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Reduction or decomposition can convert the molecular precursor into palladium particles, changing its catalytic behaviour.", "Impurities and variations in precursor purity can affect catalyst preparation and deposition results." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of palladium(II) acetylacetonate this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-neighbours", "name": "Neighbouring kinds and how to tell them apart", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "name": "Acetylacetone", "difference": "The free, protonated ligand contains no palladium; the complex contains two deprotonated acetylacetonate ligands." }, { "name": "Palladium(II) acetate", "difference": "Contains acetate ligands rather than acetylacetonate ligands and has different coordination and precursor chemistry." }, { "name": "Palladium metal", "difference": "Elemental palladium has oxidation state zero; this molecular compound contains palladium in oxidation state +2." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of palladium(II) acetylacetonate this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Which authoritative records establish the exact formula, coordination description, CAS number, EC number, and PubChem CID, and do any records conflate distinct preparations?", "Which analytical methods reliably distinguish intact palladium(II) acetylacetonate from free ligand, other palladium complexes, and reduced palladium in relevant samples?", "What solvent-specific solubility and solution-stability data are available under realistic use conditions?", "Which reported thermal values distinguish melting, volatilisation, and decomposition, and what storage conditions have experimentally supported stability periods?", "Which current hazard classifications and exposure limits apply to the neat substance, and which application-specific impurity thresholds have supporting evidence?" ], "statistics": { "bundles": 5, "layers": 9, "findings": 14, "questions": 22 } }