B=N Units as Part of Extended π‐Conjugated Oligomers and Polymers

The replacement of C=C units by their isoelectronic and isosteric B=N units (BN/CC isosterism) in π‐conjugated organic compounds, as a strategy to produce novel organic–inorganic hybrid materials, has recently been successfully transferred to π‐conjugated polymers. This Concept provides an overview of the recent advances in this quickly evolving field, with a focus on synthesis, photophysical and electrochemical properties of the new polymers and related oligomers, as well as possible future applications in organic electronics and optoelectronics.