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Werner used conductivity, precipitation, optical resolution, and systematic isomer counts to distinguish coordinated ligands from counterions and infer octahedral complexes.
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Werner’s coordinated-versus-ionizable ligand distinctions and predicted isomer counts materially motivated acceptance of spatial coordination theory.
The source experiment, observation, anomaly, or problem materially motivated the development, revision, or acceptance of the target concept. Historical influence is not logical derivation; the edge detail states the documented role and avoids retrospective origin myths.
wp-chem-wernernobel-werner-1913