Azaborines Recent Advances in Azaborine Chemistry "The chemistry...

Azaborines

Recent Advances in Azaborine Chemistry
"The chemistry of organoboron compounds has been primarily dominated by their use as powerful reagents in synthetic organic chemistry.
Recently, the incorporation of boron as part of a functional target structure has emerged as a useful way to generate diversity in organic compounds.
A commonly applied strategy is the replacement of a CC unit with its isoelectronic BN unit. In particular, the BN/CC isosterism of the ubiquitous arene motif has undergone a renaissance in the past decade. The parent molecule of the 1,2-dihydro-1,2-azaborine family has now been isolated. New mono- and polycyclic BN heterocycles have been synthesized for potential use in biomedical and materials science applications."
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3698317/


Papers with azoborine mentioned in relation to solar energy (photo voltaics):

Synthesis of polyaromatic azaborines and their application as triplet energy transfer emitters in solar energy conversion - Universidad de Alcalá
"Photon upconversion, the process wherein light of long wavelength is frequency converted to photons of higher energy, is readily achieved at low incident power through sensitized triplet–triplet annihilation (TTA) in various chromophore combinations spanning the UV to the near-IR. This emerging wavelength-shifting technology truly represents a viable route towards converting low energy terrestrial solar photons into light adequate to drive electron transfer in operational photovoltaics. One of the many possible applications of an efficient and high-energy photon up-conversion would be its use as an elegant way to increase the efficiency of various solar cells."
http://gotenergytalent.uah.es/Resea...transfer-emitters-in-solar-energy-conversion/

BN-embedded aromatics for optoelectronic applications - Chinese Chemical Letters
4. BN-embedded aromatics for organic solar cells
Replacing the C-C single bond in organic conjugated materials with B N dative bond could effectively tune the HOMO and LUMO energy levels of materials. In 2015,Liu and co-workers developed a D-A conjugated polymer P24,in which a C-C unit was replaced with aB ← N unit (Fig. 10) ^[22]. Compared with those of its carbon analog P23,introduction of B ← N dative bond significantly lowered both the HOMO and LUMO energy levels,from -3.11/-5.37eV for LUMO/HOMO to -3.76/-5.90eV. As a result,the resulting D-A conjugated polymer P24 changed from electron donor to electron acceptor,which was confirmed by fluorescence quenching experiments and the photovoltaic response.
http://html.rhhz.net/zghxkb/20160806.htm