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Updated: Jan 30, 2026

Spatial Separation of Molecular Conformers and Clusters
Published on: January 9, 2014
Control of Excited-State Conformations in B,N-Acenes
Zhenpin Lu1,2, Henrik Quanz1,2, Julia Ruhl1,2
1Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392, Giessen, Germany.
Abstract:
We present a new concept to control the conformations of molecules in the excited state through harvesting negative hyperconjugation. The strategy was realized with the 2,3,1,4-benzodiazadiborinane scaffold, which was prepared by a new synthetic procedure. Photochemical studies identified dual light emission, which was assigned to well-defined conformers. The emission at longer wavelength can be switched off by restricting the rotational degrees of freedom in the solid state as well as by controlling the energy levels of the excited states through adjusting the solvent polarity.
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