Zinc(II) 2D Coordination Polymer With Terephthalate and 4,6‐Bis(Imidazol‐1‐yl)‐2,1,3‐Benzoxadiazole Linkers as a Selective Luminescent Probe for Gallium(III) Cations
Applied Organometallic Chemistry,
Год журнала:
2025,
Номер
39(3)
Опубликована: Фев. 26, 2025
ABSTRACT
A
two‐dimensional
(2D)
zinc(II)
coordination
polymer
CP‐1
,
[Zn(im
2
bod)(bdc)]
n
(im
bod
=
4,6‐bis(imidazol‐1‐yl)‐2,1,3‐benzoxadiazole,
bdc
2−
1,4‐benzenedicarboxylate),
was
synthesized
and
fully
characterized.
crystallizes
in
the
monoclinic
crystal
system,
space
group
P
1
/n.
Zn
2+
ions
adopt
a
four‐coordinated
distorted
tetrahedral
geometry.
The
structure
of
comprises
layer
consisting
cations
connected
by
im
ligands.
adjutant
layers
participate
π‐π
stacking
interactions
via
benzene
2,1,3‐benzoxadiazole
rings.
demonstrated
blue
emission
with
maximum
at
490
nm
photoluminescence
quantum
yield
24%.
Luminescent
sensing
properties
aqueous
suspension
toward
metal
were
evaluated,
selective
quenching
response
observed
Ga
3+
limit
detection
10
μM.
Язык: Английский
Lanthanum(III) Coordination Polymer Decorated With 2,1,3‐Benzoxadiazole Units for Sensitive Luminescent Recognition of Sulfate Anion
Applied Organometallic Chemistry,
Год журнала:
2025,
Номер
39(3)
Опубликована: Фев. 21, 2025
ABSTRACT
One‐dimensional
coordination
polymer
La‐CP
,
{[La(H
2
O)
(HL
O
)
(L
)]·H
O}
n
containing
a
new
luminescent
ligand
4,7‐di(4‐carboxypyrazol‐1‐yl)‐2,1,3‐benzoxadiazole
(H
L
was
synthesized.
Upon
excitation
at
400
nm,
the
compound
shows
strong
emission
with
maximum
550
nm
high
photoluminescence
quantum
yield
of
43%.
demonstrates
sensing
properties
toward
aluminum
and
gallium
cations,
as
well
dihydrogen
phosphate
sulfate
anions
through
enhancement
response.
The
limits
detection
were
0.42,
0.70,
0.37,
0.40
μM,
respectively.
is
first
example
sensor
for
anion
among
all
types
polymers.
uptake
analytes
under
conditions
evaluated,
absorption
result
such
proposed
probable
response
mechanism.
Язык: Английский