Crystals,
Journal Year:
2024,
Volume and Issue:
14(12), P. 1026 - 1026
Published: Nov. 27, 2024
Two
new
Tb(III)
metal–organic
frameworks
based
on
4,7-dimethylphenanthroline
(dmphen)
and
flexible
ligand
trans-1,4-cyclohexanedicarboxylate
(chdc2−)
were
synthesized
characterized.
Their
crystallographic
formulae
are
[Tb2(dmphen)2(H2O)2(chdc)3]·2DMF
(1;
DMF
=
N,N-dimethylformamide)
[Tb2(dmphen)2(NO3)2(chdc)2]·2DMF
(2).
Among
some
differences
in
their
synthetic
conditions,
the
most
important
one
is
apparently
using
of
terbium(III)
nitrate
instead
chloride
as
a
metal
precursor
synthesis
2,
providing
coordination
to
Tb3+,
its
subsequent
notable
structural
1.
Compound
1
was
found
have
layered
hcb
structure
with
intralayer
windows
ca.
10
×
8
Å2
size.
Its
layer-to-layer
packing
leaves
narrow
channels
running
across
these
windows,
18%
total
solvent-accessible
volume
structure.
2
sql
smaller
6
Methyl
substituents
phen
ligands
do
not
affect
topology
framework
but
seem
substantial
effect
density,
well
pore
resulting
MOF.
A
high
18.4%
luminescence
quantum
yield
for
2.
emission
lifetime
0.695(12)
ms
belongs
typical
range
phosphorescent
Tb(III)-carboxylate
complexes.
quenching
by
different
nitroaromatic
molecules
found.
linear
concentration
dependence
3-nitrotoluene
4-nitro-m-xylene
at
micromolar
concentrations
during
luminescent
titration
experiments
(LOD
values
350
nM),
suggesting
this
MOF
be
viable
highly
sensitive
sensor
such
substrates.
Crystal Growth & Design,
Journal Year:
2024,
Volume and Issue:
24(15), P. 6472 - 6482
Published: July 15, 2024
1-Hydroxypyrene
(1-HP)
is
known
as
the
end
product
of
polycyclic
aromatic
hydrocarbons
(PAHs).
Monitoring
content
1-hydroxypyrene
in
human
urine
or
serum
can
help
measure
degree
hydrocarbon
poisoning
body.
Tryptophan
(Trp),
one
eight
essential
amino
acids,
plays
a
vital
role
growth
and
development.
Therefore,
exploration
promising
sensor
for
instant
accurate
recognition
1-HP
Trp
has
profound
influence
on
health.
Herein,
three-dimensional
(3D)
europium-centered
metal–organic
framework
([Eu(H2O)5]0.33[Eu(obdb)]·2DMF,
Eu-MOF)
with
amazing
air
stability,
acid–base
thermal
stability
was
constructed
through
coordination
interaction
between
Eu(III)
ions
V-typed
semirigid
ligand
two
isophthalate
groups
(H4obdb,
4′,4‴-oxybis([1,1′-biphenyl]-3,5-dicarboxylic
acid))
under
solvothermal
condition.
As
expected,
Eu-MOF
recognize
binary
solutions
DMF-H2O
based
significantly
luminescent
turn-off
effect
high
quenching
efficiencies
(99.2%
93.8%
Trp),
charming
constants
(2.15
×
104
M–1
4.88
low
limit
detection
(1.10
μM
0.73
satisfactory
antijamming
capability.
In
addition,
Trp,
color
change
from
red
to
blue
visible
naked
eye
concentration
increases
365
nm
UV
lamp.
Moreover,
except
solutions,
sensing
capacities
toward
are
proven
be
comparable
HEPES
buffer
solution
real
samples.
Battery energy,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 18, 2024
ABSTRACT
Lithium‐ion
batteries
(LIBs)
have
established
themselves
as
the
preferred
power
sources
for
both
pure
electric
and
hybrid
vehicles,
attributable
to
their
exceptional
characteristics,
including
prolonged
cycle
life,
elevated
energy
density,
minimal
self‐discharge
rates.
Metal‐organic
frameworks
(MOFs),
innovative
functional
molecular
crystal
materials,
exhibit
promising
application
prospects
in
LIBs.
This
paper
provides
a
comprehensive
overview
of
latest
advancements
synthesis
techniques
structural
modulation
MOFs
derivative
materials.
It
particularly
emphasizes
thorough
exploration
utilization
derivatives
anode,
cathode,
separators
Additionally,
this
delves
into
current
obstacles
encountered
by
LIB
applications
offers
insights
potential
future
development.
Crystals,
Journal Year:
2024,
Volume and Issue:
14(12), P. 1026 - 1026
Published: Nov. 27, 2024
Two
new
Tb(III)
metal–organic
frameworks
based
on
4,7-dimethylphenanthroline
(dmphen)
and
flexible
ligand
trans-1,4-cyclohexanedicarboxylate
(chdc2−)
were
synthesized
characterized.
Their
crystallographic
formulae
are
[Tb2(dmphen)2(H2O)2(chdc)3]·2DMF
(1;
DMF
=
N,N-dimethylformamide)
[Tb2(dmphen)2(NO3)2(chdc)2]·2DMF
(2).
Among
some
differences
in
their
synthetic
conditions,
the
most
important
one
is
apparently
using
of
terbium(III)
nitrate
instead
chloride
as
a
metal
precursor
synthesis
2,
providing
coordination
to
Tb3+,
its
subsequent
notable
structural
1.
Compound
1
was
found
have
layered
hcb
structure
with
intralayer
windows
ca.
10
×
8
Å2
size.
Its
layer-to-layer
packing
leaves
narrow
channels
running
across
these
windows,
18%
total
solvent-accessible
volume
structure.
2
sql
smaller
6
Methyl
substituents
phen
ligands
do
not
affect
topology
framework
but
seem
substantial
effect
density,
well
pore
resulting
MOF.
A
high
18.4%
luminescence
quantum
yield
for
2.
emission
lifetime
0.695(12)
ms
belongs
typical
range
phosphorescent
Tb(III)-carboxylate
complexes.
quenching
by
different
nitroaromatic
molecules
found.
linear
concentration
dependence
3-nitrotoluene
4-nitro-m-xylene
at
micromolar
concentrations
during
luminescent
titration
experiments
(LOD
values
350
nM),
suggesting
this
MOF
be
viable
highly
sensitive
sensor
such
substrates.
