Аңдатпа
New donor-acceptor compounds based on the azulene nucleus have been synthesized that demonstrate intense light absorption in the visible spectrum (380-600 nm) and emit light in the blue photoluminescence range.The appearance of photoluminescence is a unique feature of the resulting compounds and is absent from the original azulene.This ability was achieved by introducing a donor substituent at position 2 and acceptors at positions 1 and 3 of azulene.This led to a restructuring of its electronic structure, which created the prerequisites for the permitted -* transition.