MAGNUS GREEN SALT SOLID SOLUTIONS CONTAINING MIXED-VALENCE PLATINUM CHAINS: AN APPROACH TO 1-D METALS.

B. A. Scott*, R. Mehran, B. D. Silverman, M. A. Ratner

*Corresponding author for this work

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

This paper is concerned with inorganic solids composed of the partially oxidized platinum chain salts which represent the most extended type of interaction realizable in the 1-D system: that leading to free carriers and metallic-like conductivity. Such systems are typified by the compound K//2Pt(CN)//4Br//0//. //3 multiplied by (times) 3H//2O(KCP). In terms of the known formal oxidation states of platinum ( plus 2, plus 4) the stoichiometry of KCP can be written K//2 left bracket Pt(II)//0//. //8//5Pt(IV)//0//. //1//5(CN)//4 right bracket Br//0//. //3 multiplied by (times) 3H//2O. However, all Pt-sites are equivalent and separated by the extremely short intermetallic distance of 2. 88 A along the left bracket 001 right bracket stacking axis. Thus, strong metal-metal interaction involving the 5d//z2 orbitals, which are the highest lying occupied states, along the c-axis permits the system to attain a fractional, or partially oxidized valence of plus 2. 3. The x-ray structure shows that the charge compensating Br** minus ions are located in the interstices between the left bracket Pt(CN)//4 right bracket stacks. The interstices also contain sites for the alkali ions and water molecules. The paper presents results comprehensive discussion of an experimental study on the subject.

Original languageEnglish (US)
Pages (from-to)331-349
Number of pages19
Journal[No source information available]
StatePublished - Jan 1 1974

ASJC Scopus subject areas

  • Engineering(all)

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