Lightning Up the Structural Complexity: Challenging Bromine’s ‘Heavy’ Reputation in Fluorescence Properties of Organic–Inorganic Hybrid Materials with 5,7-Dichloro-8-Hydroxyquinolinium
Crystal Growth & Design,
Journal Year:
2023,
Volume and Issue:
24(1), P. 93 - 102
Published: Dec. 4, 2023
This
study
details
the
synthesis
and
characterization
of
a
series
organic–inorganic
hybrid
materials
(OIHMs)
based
on
5,7-dichloro-8-hydroxyquinolinium
cations
combined
with
open-shell
[Fe(III),
Cu(II)]
as
well
close-shell
[Zn(II),
Cd(II),
Hg(II),
Sn(IV)]
halogenometalate
anions,
showcasing
diverse
geometries
complex
intermolecular
interactions.
The
revealed
definite
correlation
between
fluorescence
characteristics
associated
structural
electronic
factors,
among
which
presence
water
molecules
instigated
quenching.
In
case
mercury-based
compounds,
notable
enhancement
in
was
linked
to
reduced
quantity
within
crystal
lattice,
leading
fewer
water-mediated
interactions
consequently
increased
fluorescence.
Surprisingly,
bromides
exceeded
chlorides
terms
intensity,
result
credited
anion-π
halogen-water
research
highlights
substantial
role
these
play,
offering
invaluable
insights
into
fluorescence-based
technologies.
Moreover,
it
underscores
necessity
for
comprehensive
understanding
elements
relation
properties.
Language: Английский
Bright insights: Examining fluorescence behavior using 5,7‐dibromo‐8‐hydroxyquinoline in organic–inorganic hybrid materials
Applied Organometallic Chemistry,
Journal Year:
2024,
Volume and Issue:
38(9)
Published: July 1, 2024
Expanding
on
prior
research
with
8‐hydroxyquinoline
(8hq)
derivatives,
this
study
investigates
5,7‐dibromo‐8‐hydroxyquinoline
(8hqBr
2
)
as
a
ligand
in
organic–inorganic
hybrid
materials
(OIHMs).
A
series
of
19
compounds
and
two
its
salts
were
synthesized,
employing
d‐
p‐block
metal
halides
to
explore
the
effect
solid‐state
supramolecular
structures
emission
properties.
Through
use
density
functional
theory
(DFT),
work
emphasizes
critical
role
bromine
position
within
ligand,
contrasting
when
located
exclusively
halogenometallate
anions.
The
findings
reveal
that
is
profoundly
influenced
by
π–π
stacking,
anion‐π
interactions,
configuration
cations
substituents.
This
not
only
provides
insights
into
specific
impact
positioning
8hqBr
fluorescence
but
also
contributes
development
advanced
emitters
for
optoelectronics
sensing,
enhancing
understanding
modulation
8‐hydroxyquinoline‐based
OIHMs.
Language: Английский