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Keggin structure: History & Applications

The Keggin structure is the best known structural form for heteropoly acids. It is the structural form of α-Keggin anions, having a general formula of n−, where X is the heteroatom (most commonly are pentavalent phosphorus PV, tetravalent silicon SiIV, or trivalent boron BIII), M is the addendum atom (most common are molybdenum Mo and tungsten W), and O…

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Keggin structure topic overview

The analysis highlights History and Applications as prominent areas in the source structure around Keggin structure.

Related topics
41
Source areas
7
Connected nodes
48
Extracted relationships
36
Related term clusters
20
Bridge connections
48

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

History · 13 topics
Uses · 8 topics
Overview · 6 topics
Structure and physical properties · 6 topics
Chemical properties · 4 topics
Suppliers · 3 topics
Preparation · 1 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

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Keggin structure
6Heteropoly acid · Heteroatom · Molybdenum
6Ammonium phosphomolybdate · Jöns Jakob Berzelius · Phosphomolybdic acid
6Linus Pauling · Tetrahedral molecular geometry · Octahedral molecular geometry

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

Structure and physical properties

Chemical properties

Preparation

Uses

Suppliers

For the semantics nerds

You can skip this section if you’re here for content ideas and keyword inspiration.

Advanced semantic analysis

How Keggin structure connects Entity context

The extracted context around Keggin structure shows recurring relationship patterns in the source. For example, Keggin structure → Al, Al13, Al13O4, AlO4Al12, Ga13, H2O, Keggin, OH Another extracted example is Keggin structure → Examples, Keggin, Mo, MO6, The Dawson, XM11O39, XM9O34. Use these groups to spot repeated connection types before inspecting the individual relationships.

Keggin structure

Top relations

related to Group 13 cations with the Keggin structure · 8
Keggin structure → Al, Al13, Al13O4, AlO4Al12, Ga13, H2O, Keggin, OH
related to Lacunary Keggin structures · 7
Keggin structure → Examples, Keggin, Mo, MO6, The Dawson, XM11O39, XM9O34
related to Isomerism · 5
Keggin structure → Baker, Figgis, Including, Keggin, Mo3O13
is a · 2
Keggin structure → best known structural form for heteropoly acids, widely accepted structure for the α-Keggin anions
related to Chemical properties · 2
Keggin structure → Depending, Keggin
related to Preparation · 1
Keggin structure → Keggin

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

structure keggin oxygen atoms α-keggin ion anions octahedra heteroatom acid 12 form central used structural iron tetrahedral anion citation needed

Keggin structure relationships Subject–Predicate–Object triples

TTTA extracted 36 structured relationships around Keggin structure. Examples in this analysis include Keggin structure → is a → best known structural form for heteropoly acids and Keggin structure → is a → widely accepted structure for the α-Keggin anions. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Keggin structureis abest known structural form for heteropoly acids0.90text
Keggin structureis awidely accepted structure for the α-Keggin anions0.90text
basicities of alkali metal saltsinstance ofThis structure explained many characteristics that were observed0.80text
the hydrated form of some of the saltsinstance ofThis structure explained many characteristics that were observed0.80text
silicotungstic acid are strong enough as an acid as sulfuric acidinstance ofSome anions0.80text
can be used in its place as an acid catalystinstance ofSome anions0.80text
silicotungstic acidinstance ofOther compounds that contain the α-Keggin anion0.80text
phosphomolybdic acid are also commercially available at Aldrich Chemicalsinstance ofOther compounds that contain the α-Keggin anion0.80text
Fisher Chemicalsinstance ofOther compounds that contain the α-Keggin anion0.80text
Alfa Aesarinstance ofOther compounds that contain the α-Keggin anion0.80text
VWR Chemicalinstance ofOther compounds that contain the α-Keggin anion0.80text
American Elementsinstance ofOther compounds that contain the α-Keggin anion0.80text

Related concept clusters Related term clusters

The concept neighborhoods around Keggin structure bring nearby vocabulary together. In this analysis, examples include Structure, Α-keggin and Iron. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Keggin structure
    • Structure
    • Α-keggin
    • Iron
    • Anions
    • Ion
    • Determined
    • Atoms
    • Form
    • Proposed
    • Oxygen
    • Lacunary
    • Four
  • keggin structure
    • Structure
    • Α-keggin
    • Octahedra
    • Iron
    • Anions
    • Ion
    • Tetrahedral
    • Determined
    • Atoms
    • Form
    • Proposed
    • Citation
  • james fargher keggin
    • Structure
    • Α-keggin
    • Iron
    • Anions
    • Ion
    • Determined
    • Atoms
    • Form
    • Oxygen
    • Lacunary
    • Four
    • Structural
  • dawson structure
    • Α-keggin
    • Octahedra
    • Tetrahedral
    • Proposed
    • Citation
    • Needed
    • Used
    • Atoms
    • Catalysts
    • Determined
    • Lacunary
    • Metal
  • structure and physical properties
    • Α-keggin
    • Octahedra
    • Tetrahedral
    • Proposed
    • Citation
    • Needed
    • Used
    • Atoms
    • Catalysts
    • Determined
    • Lacunary
    • Metal
  • phosphomolybdic acid
    • Silicotungstic
    • Compounds
    • Citation
    • Needed
    • Α-keggin
    • Acidic
    • Chemical
    • Determined
    • Proposed
    • Four
    • Anion
    • Bond
  • silicotungstic acid
    • Silicotungstic
    • Citation
    • Needed
    • Compounds
    • Α-keggin
    • Used
    • Acidic
    • Chemical
    • Determined
    • Proposed
    • Four
    • Anion
  • sulfuric acid
    • Silicotungstic
    • Compounds
    • Citation
    • Needed
    • Α-keggin
    • Acidic
    • Chemical
    • Determined
    • Proposed
    • Four
    • Anion
    • Bond

Connections between topic areas Semantic bridges

For Keggin structure, one of the stronger structural bridges in this analysis connects Keggin structure with History. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Keggin structure — History · splits 35 ⟂ 14
Keggin structure — Uses · splits 40 ⟂ 9
Keggin structure — Overview · splits 42 ⟂ 7
Keggin structure — Structure and physical properties · splits 42 ⟂ 7
Keggin structure — Chemical properties · splits 44 ⟂ 5
Keggin structure — Suppliers · splits 45 ⟂ 4

Map overview Semantic statistics

Keggin structure

Nodes49
Edges48
Triples36
Avg. degree1.96
Density0.040816
Components1

Source & methodology

TTTA analyzes the structure around Keggin structure to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History & Applications, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Keggin structure · EN edition · Analysis: TopicsToTalkAbout

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