Metal-carbonyl cluster compounds are composed of macromolecules that consist of a core of metal atoms coordinated by a "shell" of CO ligands. We present susceptibility and high-field magnetization measurements on various high-nuclearity platinum and nickel clusters. The compounds display very unusual low-temperature magnetic behaviour, which we ascribe to quantum-size-effects arising from the discreteness of the electronic energy levels due to the small dimensions of the metal clusters (10-40 atoms). We compare our results with predictions from molecular orbital calculations.
PHYSICAL-PROPERTIES OF METAL CLUSTER COMPOUNDS .1. MAGNETIC MEASUREMENTS ON HIGH-NUCLEARITY NICKEL AND PLATINUM CARBONYL CLUSTERS / B. PRONK, H. BROM, L. DEJONGH, G. LONGONI, A. CERIOTTI. - In: SOLID STATE COMMUNICATIONS. - ISSN 0038-1098. - 59:6(1986), pp. 349-354.
PHYSICAL-PROPERTIES OF METAL CLUSTER COMPOUNDS .1. MAGNETIC MEASUREMENTS ON HIGH-NUCLEARITY NICKEL AND PLATINUM CARBONYL CLUSTERS
A. CERIOTTIUltimo
1986
Abstract
Metal-carbonyl cluster compounds are composed of macromolecules that consist of a core of metal atoms coordinated by a "shell" of CO ligands. We present susceptibility and high-field magnetization measurements on various high-nuclearity platinum and nickel clusters. The compounds display very unusual low-temperature magnetic behaviour, which we ascribe to quantum-size-effects arising from the discreteness of the electronic energy levels due to the small dimensions of the metal clusters (10-40 atoms). We compare our results with predictions from molecular orbital calculations.
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