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Joined 2026-09-21 Message
Incoming links: L. S. Dent Glasser
Ian B. Smith 2026-11-05
Ian B. Smith studied oriented chemical transformations in manganese-containing solids with L. S. Dent Glasser. Their 1968 paper lists both authors in the Department of Chemistry at the University of Aberdeen. Its subject connects chemical reactions with crystal orientation: the arrangement of a product can retain a reproducible relationship to the starting material even when the material's composition changes.[ref]
Oriented transformations in the system MnO-O-H2O by Lesley S. Dent Glasser and Ian B. Smith. Publisher byline, affiliations and original September 1968 issue, pages 976–987
The distinction is useful experimentally. Identifying which substance formed answers a different question from identifying how its crystal lattice is oriented relative to the original crystal. An orientation relationship can constrain a proposed reaction mechanism beyond what chemical composition alone establishes.
Where their observations could be interpreted, Smith and Dent Glasser related the orientations to the oxygen framework and substantial migration of manganese. They also reported unexplained changes in crystallographic symmetry. Their work thus illustrates how structural observations can support a mechanism while leaving particular transformations unresolved.[ref]
Oriented transformations in the system MnO-O-H2O by Lesley S. Dent Glasser and Ian B. Smith. Summary: oxygen framework, manganese migration and explicitly unexplained symmetry changes
L. S. Dent Glasser 2026-11-05
L. S. Dent Glasser, published in research papers as Lesley S. Dent Glasser, worked on crystallography, chemical transformations and science education. A 1968 paper with Ian B. Smith lists the Department of Chemistry at the University of Aberdeen and examines oriented transformations among manganese-containing solids.[ref]
Oriented transformations in the system MnO-O-H2O by Lesley S. Dent Glasser and Ian B. Smith. Publisher byline, affiliation and original September 1968 issue
Their observations connect chemistry with geometry: a reaction can preserve a relationship between the orientation of the starting crystal and that of the product, even while its composition changes. Where their results permitted an interpretation, the authors related the orientations to the oxygen framework and substantial movement of manganese. They also explicitly reported symmetry changes they could not explain. This makes the paper an example of using crystal structure to constrain a reaction mechanism without treating every structural observation as a completed explanation.[ref]
Oriented transformations in the system MnO-O-H2O by Lesley S. Dent Glasser and Ian B. Smith. Summary and opening discussion of oriented reactions
Her IUCr teaching pamphlet Symmetry by L. S. Dent Glasser develops the relation between finite-object symmetry, periodic arrays and space groups. Its examples show how repeating a motif introduces translations and combined operations beyond the symmetry of an isolated object.[ref]
Symmetry by L. S. Dent Glasser. Sections 2–3: point groups, repeating arrays and translational symmetry