Molecules,
Journal Year:
2024,
Volume and Issue:
29(14), P. 3432 - 3432
Published: July 22, 2024
Novel
fluorescent
pyrazole-containing
boron
(III)
complexes
were
synthesized
employing
a
one-pot
three-component
reaction
of
3-hydroxy-1-phenyl-1H-pyrazole-4-carbaldehyde,
2-aminobenzenecarboxylic
acids,
and
boronic
acids.
The
structures
the
novel
heterocyclic
compounds
confirmed
using
1H-,
13C-,
15N-,
19F-,
11B-NMR,
IR
spectroscopy,
HRMS,
single-crystal
X-ray
diffraction
data.
photophysical
properties
obtained
iminoboronates
investigated
spectroscopic
techniques,
such
as
UV–vis
fluorescence
spectroscopies.
Compounds
display
main
absorption
maxima
in
blue
region,
emission
are
observed
green
region
visible
spectrum.
It
was
revealed
that
exhibit
quantum
yield
up
to
4.3%
different
solvents
demonstrate
an
aggregation-induced
enhancement
effect
mixed
THF–water
solutions.
