A Micromechanical Model for Light-Interactive Molecular Crystals
Published: Jan. 1, 2025
Language: Английский
Crystallizing covalent organic frameworks from metal organic framework through chemical induced-phase engineering
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: Nov. 9, 2023
The
ordered
porous
frameworks
like
MOFs
and
COFs
are
generally
constructed
using
the
monomers
through
distinctive
metal-coordinated
covalent
linkages.
Meanwhile,
inter-structural
transition
between
each
class
of
these
materials
is
an
under-explored
research
area.
However,
such
altered
expected
to
have
exciting
features
compared
their
pristine
versions.
Herein,
we
demonstrated
a
chemical-induction
phase-engineering
strategy
transform
two-dimensional
conjugated
Cu-based
SA-MOF
(Cu-Tp)
into
2D-COFs
(Cu-TpCOFs).
structural
phase
offered
in-situ
pore
size
engineering
from
1.1
nm
1.5-2.0
nm.
Moreover,
Cu-TpCOFs
showed
uniform
low
percentage-doped
(~
1-1.5%)
metal
distribution
improved
crystallinity,
porosity,
stability
parent
Cu-Tp
MOF.
construction
framework
another
with
new
linkages
opens
interesting
opportunities
for
phase-engineering.
Language: Английский
Precise Photochemical Post‐Processing of Molecular Crystals
Jianqun Qi,
No information about this author
Linfeng Lan,
No information about this author
Quan‐Liang Chen
No information about this author
et al.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 19, 2024
Abstract
Molecular
crystals
carry
a
great
potential
as
new
soft
smart
materials,
with
plethora
of
recent
examples
overcoming
the
major
obstacle
mechanical
flexibility,
and
this
research
direction
holds
enormous
to
revolutionize
optics,
electronics,
medicine,
space
exploration.
However,
shaping
organic
into
desired
shapes
sizes
remains
practical
challenge
due
lack
control
over
crystallization
process,
difficulties
in
post‐processing
without
introduction
defects
that
are
usually
imparted
by
their
nature.
Here
we
present
an
innovative
approach
employs
photochemical
processing
for
precise
nondestructive
cutting
molecular
crystal.
Our
proposed
method
uses
light
post‐process
size
shape,
similar
using
cut
other
materials.
This
reaction
induces
strain,
ensuring
sharp
cleavage
need
melting
or
processes.
We
further
demonstrate
producing
arbitrary
size,
which
can
be
used
controllable
optical
waveguides.
Among
applications,
prepare
dynamic
crystals,
particularly
those
aspect
ratios
crucial
deformation,
such
flexible
robotics,
sensing.
Language: Английский
Precise Photochemical Post‐Processing of Molecular Crystals
Jianqun Qi,
No information about this author
Linfeng Lan,
No information about this author
Quanliang Chen
No information about this author
et al.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 19, 2024
Abstract
Molecular
crystals
carry
a
great
potential
as
new
soft
smart
materials,
with
plethora
of
recent
examples
overcoming
the
major
obstacle
mechanical
flexibility,
and
this
research
direction
holds
enormous
to
revolutionize
optics,
electronics,
medicine,
space
exploration.
However,
shaping
organic
into
desired
shapes
sizes
remains
practical
challenge
due
lack
control
over
crystallization
process,
difficulties
in
post‐processing
without
introduction
defects
that
are
usually
imparted
by
their
nature.
Here
we
present
an
innovative
approach
employs
photochemical
processing
for
precise
nondestructive
cutting
molecular
crystal.
Our
proposed
method
uses
light
post‐process
size
shape,
similar
using
cut
other
materials.
This
reaction
induces
strain,
ensuring
sharp
cleavage
need
melting
or
processes.
We
further
demonstrate
producing
arbitrary
size,
which
can
be
used
controllable
optical
waveguides.
Among
applications,
prepare
dynamic
crystals,
particularly
those
aspect
ratios
crucial
deformation,
such
flexible
robotics,
sensing.
Language: Английский