Double σ-Aromaticity in a Surface-Deposited Cluster: Pd4 on TiO2 (110).
We report double σ-aromaticity in a surface-deposited cluster, Pd4, on the TiO2 (110) surface. In the gas phase, Pd4 adopts a tetrahedral structure. However, surface binding promotes a flat, σ-aromatic cluster. This is the first time aromaticity has been found in surface-deposited clusters. The concept of aromaticity is expected to become instrumental in predicting and interpreting properties of such systems, much like it is for isolated molecules and clusters.
Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, United States.
Jin
J
Zhang
Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, United States.
Anastassia N
AN
Alexandrova
aromaticity; chemical bonding; clusters on surfaces