Raymond Leslie Martin portrait.

20: Coordination, Topology and Structure in Transition Metal Oxides (1976)

Raymond Leslie Martin


The Liversidge Research Lecture, delivered before the Royal Society of New South Wales, 15th July 1976. Reproduced by permission of the Royal Society of New South Wales from J. Proc. Roy. Soc. N.S.W., 1976, 109, 137-150.

"The role of defects in the real structure of transition metal oxides which exhibit gross departures from simple stoicheiometries† is reviewed. The classical notion of a randomized distribution of non-interacting point defects is no longer tenable being replaced by the emerging recognition that a high level of organization into discrete clusters or more extended assemblies of defects is an inherent feature of the real structure of defect solids. The concept of octahedral coordination of vacant oxygen sites, taken in conjunction with topological analysis, is shown to contribute considerable insight into the transformational and structural relationships between defect oxides of the fluorite type."

†Now usually spelled 'stoichiometries'.

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