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- Title
Metal Transition in Sodium-Ammonia Nanodroplets.
- Authors
Hartweg, Sebastian; West, Adam H. C.; Yoder, Bruce L.; Signorell, Ruth
- Abstract
The famous nonmetal-to-metal transition in Na-ammonia solutions is investigated in nanoscale solution droplets by photoelectron spectroscopy. In agreement with the bulk solutions, a strong indication for a transition to the metallic state is found at an average metal concentration of 8.8±2.2 mole%. The smallest entity for the phase transition to be observed consists of approximately 100-200 solvent molecules. The quantification of this critical entity size is a stepping stone toward a deeper understanding of these quantum-classical solutions through direct modeling at the molecular level.
- Subjects
TRANSITION metals; SODIUM compounds; PHOTOELECTRON spectroscopy; PHASE transitions; BINDING energy
- Publication
Angewandte Chemie International Edition, 2016, Vol 55, Issue 40, p12347
- ISSN
1433-7851
- Publication type
Article
- DOI
10.1002/anie.201604282