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The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Structural evolution of small ruthenium cluster anions
Eugen Waldt1, Anna-Sophia Hehn2, Reinhart Ahlrichs2
1Institut für Nanotechnologie, Karlsruher Institut für Technologie, Postfach 3640, 76021 Karlsruhe, Germany.
Abstract:
The structures of ruthenium cluster anions have been investigated using a combination of trapped ion electron diffraction and density functional theory computations in the size range from eight to twenty atoms. In this size range, three different structural motifs are found: Ru8(-)-Ru12(-) have simple cubic structures, Ru13(-)-Ru16(-) form double layered hexagonal structures, and larger clusters form close packed motifs. For Ru17(-), we find hexagonal close packed stacking, whereas octahedral structures occur for Ru18(-)-Ru20(-). Our calculations also predict simple cubic structures for the smaller clusters Ru4(-)-Ru7(-), which were not accessible to electron diffraction measurements.
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