Optimizing optical anisotropy in low-dimensional structures via intralayer hydrogen bonding modulation and anionic substitution
Muhammad Arif,
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Xu Liu,
No information about this author
Hangwei Jia
No information about this author
et al.
Materials Horizons,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Aminopyrazine
forms
low-dimensional
structures
with
enhanced
birefringence,
driven
by
optimal
coplanarity
among
birefringent
active
units
regulated
[N–H⋯X]
hydrogen
bonds.
Language: Английский
Extended study of crystal structures, optical properties and vibrational spectra of polar 2-aminopyrimidinium hydrogen phosphite and three centrosymmetric salts - bis(2-aminopyrimidinium) sulfate monohydrate and two 2-aminopyrimidinium hydrogen sulfate polymorphs
Optical Materials,
Journal Year:
2025,
Volume and Issue:
unknown, P. 117033 - 117033
Published: April 1, 2025
Language: Английский
[CON3H6BF4]: An Efficient Metal‐Free Borate with Optimized Birefringence Achieved by Structural Design Strategy
Muhammad Arif,
No information about this author
Xu Liu,
No information about this author
Hangwei Jia
No information about this author
et al.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 23, 2025
Abstract
Deep‐ultraviolet
(UV)
birefringent
materials
are
urgently
needed
for
advancing
light
polarization
in
deep‐UV
lithography.
In
crystal
engineering,
maximizing
anisotropy
by
classical
template
alteration
demonstrates
its
efficiency
achieving
superior
performance
characteristics.
Consequently,
a
novel
planar
functional
building
unit
(FBU),
[CON
3
H
5
],
is
proposed,
acquired
amino
modulation
within
the
urea
template.
This
article
presents
methodical
investigation
of
fluoroborate
[(CON
6
)BF
4
]
(AUBF),
designed
unifying
π
‐conjugated
cation
with
fully
fluorinated
non‐
tetrahedron
single
system.
The
compound
exhibits
well‐balanced
properties,
owing
to
parallel
molecular
arrangement,
and
has
been
characterized
as
high‐performing
material.
As
known
all,
it
first
semi‐organic
urea‐based
reach
region
cutoff
edge
at
196
nm,
substantial
birefringence
0.127@546
similar
that
previously
reported
compounds
well
commercial
α
‐BBO
(0.123@546
nm).
work
not
only
identifies
gene
improved
optical
but
also
opens
door
synthesizing
via
structural
regulation
design
strategy.
Language: Английский
Metal Cation Engineered UV Birefringent Crystals in π‐Conjugated Sulfonates with Record‐High Optical Anisotropy
Zichang Wang,
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Qing‐Yu Liu,
No information about this author
Zhihua Yang
No information about this author
et al.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 7, 2025
Abstract
Exploring
excellent
UV
birefringent
crystals
is
very
urgent
for
use
in
advanced
optical
technologies
to
manipulate
light
polarization
of
great
significance.
Planar
π‐conjugated
groups
are
interest
researchers
the
exploration
materials
with
pronounced
birefringence
(∆
n
).
However,
systematic
understanding
cation
and
anion
groups‐regulated
structure–property
relationships
requires
further
investigation.
Herein,
metal
engineering
applied
achieve
controlled
synthesis
novel
compounds,
enabling
precise
coordination
modulation
correlation
studies.
In
this
work,
eight
new
3‐pyridinesulfonate
formula
A(3‐C
5
H
4
NSO
3
)
x
·yH
2
O
(
A
=
Li,
Na,
Mg,
Ca,
Zn,
Sr,
Ba;
1
2,
y
0,
4,
6)
Na(3‐C
)·2NaBF
·(3‐C
H)
synthesized
characterized.
Notably,
these
exhibit
strong
anisotropy,
values
ranging
from
0.106
0.345
(measured
at
546
nm)
short
cut‐off
edges
below
280
nm.
Specifically,
Li(3‐pySO
exhibits
an
exceptionally
large
nm),
which
represents
highest
value
within
metal‐containing
system
surpasses
that
most
commercially
available
crystals.
Moreover,
analysis
elucidates
a
comprehensive
cation‐structure‐birefringence
framework,
thereby
establishing
cation‐driven
design
principle
high‐performance
Language: Английский