ACS Omega,
Journal Year:
2024,
Volume and Issue:
9(51), P. 50579 - 50588
Published: Dec. 12, 2024
Metal-organic
frameworks
(MOFs)
are
coordination
polymers
that
can
generally
be
described
by
secondary
building
units
(SBUs).
These
include
lanthanide
MOFs,
specifically
mixed
MOFs
(m-LnMOFs),
encompassing
formed
two
or
more
different
Ln
ACS Omega,
Journal Year:
2024,
Volume and Issue:
9(50), P. 49441 - 49451
Published: Dec. 2, 2024
To
examine
the
water-induced
photoluminescence
turn-on
and
its
potential
application
in
trace
water
sensing,
a
new
series
of
[LnIII(dmba)3(H2O)2]·2H2O,
where
LnIII
=
LaIII
(I),
PrIII
(II),
NdIII
(III),
SmIII
(IV),
EuIII
(V),
GdIII
(VI),
TbIII
(VII),
DyIII
(VIII),
HoIII
(IX),
ErIII
(X),
were
synthesized
using
dimethoxybenzoic
acid
(Hdmba).
Their
single-crystal
structures
thermal
chemical
robustness
investigated,
effects
lanthanide
contraction
noncovalent
interactions
discussed.
The
colorimetric
properties
I–X
investigated.
dependence
on
dehydration
rehydration
was
disclosed,
from
which
significant
role
proposed.
Based
dehydration–rehydration-dependent
responses
forms
emission
color,
turn-off
(dehydration)
(rehydration)
red
(V)
demonstrated.
Using
mobile
phone
camera
freeware
application,
use
sensing
polar
organic
solvents
successfully
achieved.
With
respect
to
ethanol,
acetonitrile,
acetone,
linear
correlations
established
0
3–5%
by
volume
with
an
R2
over
0.98.
detection
quantification
limits
less
than
0.5
1.5%,
respectively.
percentage
recoveries
92
110%.
underlying
mechanism
postulated.
ACS Omega,
Journal Year:
2024,
Volume and Issue:
9(51), P. 50579 - 50588
Published: Dec. 12, 2024
Metal-organic
frameworks
(MOFs)
are
coordination
polymers
that
can
generally
be
described
by
secondary
building
units
(SBUs).
These
include
lanthanide
MOFs,
specifically
mixed
MOFs
(m-LnMOFs),
encompassing
formed
two
or
more
different
Ln