title: Applying the oligomer approach to luminescent conjugated organoboranes.
abstract: A series of highly luminescent monodisperse fluoreneborane oligomers (n=1-6) were prepared using a new iterative synthetic procedure that takes advantage of the highly selective and differential reactivity of bromoboranes with arylsilanes and arylstannanes. Cyclic and square wave voltammetry revealed a gradual decrease of the LUMO energy levels with increasing chain length, while absorption and emission data showed a bathochromic shift and increase in quantum efficiency. An extended conjugation length of n(ECL)=5 was derived.
authors: Department of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark, New Jersey 07102, USA.
authors: Pangkuan
authors: P
authors: Chen
authors: Roger A
authors: RA
authors: Lalancette
authors: Frieder
authors: F
authors: Jäkle