Optimizing optical anisotropy in low-dimensional structures via intralayer hydrogen bonding modulation and anionic substitution
Muhammad Arif,
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Xu Liu,
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Hangwei Jia
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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
Unveiling Charge Dependent Law to Enhance Birefringence in 2‐Aminopyrimidine Family
Advanced Optical Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 16, 2024
Abstract
Salts
and
co‐crystals
composed
of
planar
π
‐conjugated
functional
units
represent
a
fascinating
class
materials,
featuring
both
enlarged
birefringence
strong
SHG
effect.
Herein,
the
optical
properties
(C
4
H
7
N
3
)
2+
unit
within
2‐aminopyrimidine
(2‐AP)
family
are
investigated
for
first
time.
Furthermore,
twelve
novel
compounds
successfully
synthesized
by
applying
four
different
strategies.
In
these
strategies,
,
6
+
5
introduced
into
crystal
structure,
solely
in
combination,
to
analyze
alteration
birefringence.
Remarkably,
rule
with
<
),
stating
that
an
increase
net
charge
over
leads
reduced
birefringence,
is
discovered.
Consequently,
inclusion
charge‐neutral
structure
along
coplanar
arrangement
promising
approach
enhance
D‐2
[(C
)(H
C
O
)]
realizes
Δn
calc
=
0.412
maximum
family.
Notably,
A‐1
)(CF
SO
2
]
B‐1
(IO
(H
O)]
crystalize
non‐centrosymmetric
space
groups,
exhibiting
efficiency
≈1.4
×
KDP
@
1064
nm,
shortest
λ
PM
at
384
nm.
This
work
provides
new
insight
discovering
birefringent
non‐linear
materials
high
performances
wide
chemical
space.
Language: Английский
CsBO(OH)2: a New Hydroxyborate with the Rare [BO(OH)2] Group and deep ultraviolet cutoff edge
Chemical Communications,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
The
hydroxylation
of
[BO
3
]
groups
into
[BO(OH)
2
regulates
the
arrangement
groups,
thereby
enhancing
birefringence
and
increasing
bandgap.
Language: Английский