Structural and Spectroscopic Properties of Aryl Substituted Aminoboranes as Model Compounds and Synthons for B/C/N Materials and New Fluorescent Systems 

Abstract

Abstract:Tetraphenylaminoborane (1)

First N-Borylated Emitters Displaying Highly Efficient Thermally Activated Delayed Fluorescence and High-Performance OLEDs

“…This could be due to the formation of an additional B–N dative bonding interaction exerted by the lone-pair donation from the nitrogen atom to the vacant p-orbital of boron atom. Moreover, these B–N distances are slightly elongated than the B–N distance of aliphatic aminoborane such as Me 2 N-BMe 2 (1.403(1) Å), but are comparable to that of aromatic counterparts Ph 2 NBPh 2 (1.441(2) Å) and CzBPh 2 (1.443(2) Å) . As depicted in Figures –, the dihedral angle (θ) between acridine and B­(Mes) 2 unit and the C···N–B nonbonding angle (ϕ) are recorded to be 17.58, 14.32, 31.93, and 49.86° and to be 151.78, 146.96, 162.40, and 179.40°, for ACBM, PACBM, SACBM_C, and SACBM_Y, respectively.…”

“…This could be due to the formation of an additional B−N dative bonding interaction exerted by the lone-pair donation from the nitrogen atom to the vacant porbital of boron atom. Moreover, these B−N distances are slightly elongated than the B−N distance of aliphatic aminoborane such as Me 2 N-BMe 2 (1.403(1) Å),50 but are comparable to that of aromatic counterparts Ph 2 NBPh 2 (1.441(2) Å) and CzBPh 2 (1.443(2) Å) 51. As depicted in…”

On-Surface Synthesis of BN-Substituted Heteroaromatic Networks

“…Although mostly carbon-based and nitrogen-doped structures have been fabricated so far, there are no inherent limitations for this strategy to be extended to more complex systems, as far as the necessary precursor monomers can be synthesized. 10 The method can thus be envisaged as a powerful tool for the fabrication of complex heterostructures where atomic precision is required. One example is the challenging fabrication of in-plane hexagonal boronÀnitrideÀcarbon (h-BNC) heterostructures.…”

“…Fabrication of fullerenes, azafullerenes, , nanodomes, − and nanographenes − via SAC has been reported in the last years. Although mostly carbon-based and nitrogen-doped structures have been fabricated so far, there are no inherent limitations for this strategy to be extended to more complex systems, as far as the necessary precursor monomers can be synthesized . The method can thus be envisaged as a powerful tool for the fabrication of complex heterostructures where atomic precision is required.…”