title: Boron-boron multiple bond in [B(NHC)]2: towards stable and aromatic [B(NHC)]n rings.
abstract: Chained up: The π conjugation along B-C-N chains and a shift into a deep valence area of σ molecular orbitals (HOMO-6) are the reasons for the high stability of the dimer [B(NHC)]2 (NHC = N-heterocyclic carbene). The cyclic compounds [B(NHC)]n (see selected MOs for n = 6) exhibit structural and aromatic features similar to the corresponding hydrocarbons (CH)n.
authors.affiliation: Department of Chemistry, University of Leuven, Celestijnenlaan, 200F, 3001 Leuven, Belgium. truong.batai@chem.kuleuven.be
authors.forename: Truong Ba
authors.initials: TB
authors.lastname: Tai
authors.forename: Minh Tho
authors.initials: MT
authors.lastname: Nguyen