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the claim
Transition metal complexes with 18 valence electrons achieve noble gas configuration stability.
the verdict
COMMON KNOWLEDGE
no citation needed for this one
refutedsupported
the weight of evidence
no sources on either side

The 18-electron rule, which is the organometallic equivalent of the octet rule, posits that transition metal complexes with 18 valence electrons achieve enhanced stability corresponding to a noble gas electron configuration.

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The analysis

The claim that transition metal complexes with 18 valence electrons achieve noble gas configuration stability is a well-established foundational concept in coordination chemistry (the 18-electron rule), treated as common knowledge in textbooks and literature. Paper [4] explicitly invokes this rule to explain the stability of its investigated transition metal complexes. No papers refute the general validity of the rule.

Everything we examined (12)
We also searched for evidence AGAINST this claim, not only for it.
  1. Redox regulation: mechanisms, biology and therapeutic targets in diseases.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  2. A Deep Generative Model for the Inverse Design of Transition Metal Ligands and Complexespeer-reviewedno side takennot shown: read and judged not to bear on this claim
  3. Initiation, Propagation, and Termination in the Chemistry of Radical SAM Enzymes.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  4. Monodisperse Molecular Models for the sp Carbon Allotrope Carbyne; Syntheses, Structures, and Properties of Diplatinum Polyynediyl Complexes with <b>PtC<sub>20</sub>Pt</b> to <b>PtC<sub>52</sub>Pt</b> Linkages.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  5. Prediction of heptagonal bipyramidal nonacoordination in highly viable [OB-M©B<sub>7</sub>O<sub>7</sub>-BO]<sup>-</sup> (M = Fe, Ru, Os) complexes.peer-reviewedsupportsnot shown: read and graded, but this claim needs no citation to stand
  6. Investigating Potential Cancer Therapeutics: Insight into Histone Deacetylases (HDACs) Inhibitions.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  7. Theoretical Analysis of Coordination Geometries in Transition Metal–Histidine Complexes Using Quantum Chemical Calculationspeer-reviewedno side takennot shown: read and judged not to bear on this claim
  8. A more effective catalysis of the CO<sub>2</sub> fixation with aziridines: computational screening of metal-substituted HKUST-1.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  9. Anti-Bacterial and Anti-Fungal Properties of a Set of Transition Metal Complexes Bearing a Pyridine Moiety and [B(C6F5)4]2 as a Counter Anionpeer-reviewedno side takennot shown: read and judged not to bear on this claim
  10. Stabilities, Electronic Structures, and Bonding Properties of 20-Electron Transition Metal Complexes (Cp)2TMO and their One-Dimensional Sandwich Molecular Wires (Cp = C5H5, C5(CH3)H4, C5(CH3)5; TM = Cr, Mo, W).peer-reviewedno side takennot shown: read and judged not to bear on this claim
  11. A Roadmap for Plasma-Enabled Electrocatalysis in Urea Production.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  12. N-Heterocyclic Carbenes on a III-V Semiconductor: From Chain Formation to Ordered Monolayers.peer-reviewedno side takennot shown: read and judged not to bear on this claim
The paper trail · every fact has a biography
first checked06 Aug 2026
judged → COMMON KNOWLEDGE · 006 Aug 2026
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