title: Structure and electronics in dimeric boron π expanded azine and salphen complexes.
abstract: Although boron-based fluorophores incorporating nitrogenous chelating ligands have received much attention, there has been little work on examples of boron-salphen and azine derivatives. In this report, we present several π expanded boron salphen type complexes, incorporating both bis(2-hydroxynaphthaldehyde)azine as well as ortho, meta and para variants of the analogous 2-hydroxynaphthaldehyde salphen compounds. For the azine, we observed only the formation of a single BF2adduct, while for the naphth-phen compounds dimeric BF2binding was observed. All new compounds were fully characterized via X-ray diffraction, and both DFT and TDDFT studies were carried out to probe the electronic structures of these fluorophores.
authors.affiliation: Department of Chemistry, University of Akron, Akron, OH 44325-3601, USA. ziegler@uakron.edu.
authors.forename: Laura A
authors.initials: LA
authors.lastname: Crandall
authors.forename: Mahesh B
authors.initials: MB
authors.lastname: Dawadi
authors.forename: Tailon
authors.initials: T
authors.lastname: Burrell
authors.forename: Adwoa
authors.initials: A
authors.lastname: Odoom
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Ziegler