title: Dehydrocoupling and Silazane Cleavage Routes to Organic-Inorganic Hybrid Polymers with NBN Units in the Main Chain.
abstract: Despite the great potential of both π-conjugated organoboron polymers and BN-doped polycyclic aromatic hydrocarbons in organic optoelectronics, our knowledge of conjugated polymers with B-N bonds in their main chain is currently scarce. Herein, the first examples of a new class of organic-inorganic hybrid polymers are presented, which consist of alternating NBN and para-phenylene units. Polycondensation with B-N bond formation provides facile access to soluble materials under mild conditions. The photophysical data for the polymer and molecular model systems of different chain lengths reveal a low extent of π-conjugation across the NBN units, which is supported by DFT calculations. The applicability of the new polymers as macromolecular polyligands is demonstrated by a cross-linking reaction with Zr(IV) .
authors.affiliation: Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52056, Aachen, Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Lorenz
authors.affiliation: Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52056, Aachen, Germany.
authors.forename: Artur
authors.initials: A
authors.lastname: Lik
authors.affiliation: Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52056, Aachen, Germany.
authors.forename: Felix A
authors.initials: FA
authors.lastname: Plamper
authors.affiliation: Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52056, Aachen, Germany. holger.helten@ac.rwth-aachen.de.
authors.forename: Holger
authors.initials: H
authors.lastname: Helten
keywords: boron; hybrid materials; inorganic polymers; main-group polymers; π-conjugated polymers