Cheng SB1, Berkdemir C, Castleman AW Jr.
Phys Chem Chem Phys. 2014 Jan 14;16(2):533-9. doi: 10.1039/c3cp53245c.The concept of aromaticity has been advanced beyond the framework of organic chemistry, and multiple aromaticity (σ, π, and δ) has been observed to account for the highly symmetric structures or unusual stability of the clusters. In the present study, the electronic structures and chemical bonding of small monolanthanum boride clusters are investigated using photoelectron imaging spectroscopy and first principles electronic structure calculations. Read More