The Journal of Organic Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 13, 2024
The
evolution
of
energetic
materials
science
presents
new
challenging
tasks
associated
with
the
creation
advanced
technologies
for
sustainable
development
future.
In
this
work,
a
set
heat-resistant
high-energy
incorporating
polynitrophenyl-1,2,5-oxadiazole
scaffold
enriched
azo/azoxy
moieties
have
been
designed
and
synthesized.
Due
to
smart
combination
explosophoric
groups
1,2,5-oxadiazole
rings,
prepared
substances
excellent
thermal
stability
(up
300
°C),
good
densities
1.75
g
cm–3),
high
enthalpies
formation
(340–538
kJ
mol–1),
combined
nitrogen–oxygen
content
(63–68%).
In-depth
structural
analysis
revealed
presence
strong
intra-
intermolecular
hydrogen
bonds
in
aminodinitrophenyl
derivatives,
which
small
deviation
electrostatic
potential
values
explains
low
mechanical
sensitivity
these
materials.
At
same
time,
trinitrophenyl-1,2,5-oxadiazoles
three
adjacent
non-coplanar
nitro
demonstrated
higher
impact,
albeit
retaining
complete
insensitivity
friction.
overall
performance
thus
exceeds
that
known
explosive
hexanitrostilbene.
Therefore,
newly
synthesized
family
polynitrophenyl-1,2,5-oxadiazoles
provides
fruitful
foundation
Journal of Heterocyclic Chemistry,
Journal Year:
2024,
Volume and Issue:
61(8), P. 1299 - 1305
Published: June 5, 2024
Abstract
In
an
attempt
to
cultivate
energy‐stability
balance,
a
series
of
nitrogen
and
oxygen‐rich
high
energy
density
materials
were
synthesized
based
on
N
‐substituted
4‐hydroxy‐3,5‐dinitropyrazole
methylene‐linked
‐amino‐1,2,4‐bridges.
The
hydroxy
substituent
contributed
oxygen
content,
hydrogen
bonding,
tunability
via
salt
formation.
On
the
other
hand,
triazole
bridge
delivered
content
thermal
stability.
All
compounds
characterized
with
multinuclear
NMR,
FTIR,
HRMS,
elemental
analysis,
their
physicochemical
energetic
properties
analyzed.
Energetic
1
–
5
showed
detonation
performance
adequate
overall
stabilities.
Compound
exhibited
higher
(1.84
g/cm
3
)
(
D
v
=
8103
m/s,
P
26.9
GPa)
in
comparison
its
reported
amino
derivative.
Organic Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 8, 2025
In
this
study,
we
synthesized
energetic
materials
integrating
thiadiazole
and
triazole
moieties.
The
newly
developed
compounds
were
thoroughly
characterized
using
NMR,
IR,
elemental
analysis,
TGA-DSC,
single-crystal
X-ray
diffraction
(for
compound
3).
These
exhibited
acceptable
properties,
including
high
densities
(1.88–1.92
g
cm–3),
moderate
to
good
detonation
performance
(VOD:
6383–8128
m
s–1),
thermal
stability
(143–238
°C),
less
sensitivity
impact
(>15
J)
friction
(360
N).
Notably,
4
8
achieved
superior
velocities
compared
nearly
all
reported
sulfur-based
date.
This
work
highlights
the
significance
of
triazole-thiadiazole
frameworks
in
development
fine-tuning
materials.
Organic Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 1, 2025
A
set
of
novel
biheterocyclic
energetic
materials
incorporating
the
4-nitroisoxazole
scaffold
was
synthesized.
Thus,
prepared
species
demonstrated
excellent
thermal
stability
(181–244
°C),
good
densities
(1.71–1.74
g·cm–3),
and
detonation
velocities
(7.6–8.3
km
s–1),
while
retaining
insensitivity
to
friction.
To
best
our
knowledge,
this
is
first
example
an
incorporation
into
structure
high-energy
materials.
Dalton Transactions,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
The
preparation
of
new
energetic
materials
comprising
the
poorly
explored
2,5-disubstituted
tetrazole
scaffold
as
a
central
structural
motif
coupled
with
oxadiazole
rings
is
reported.
Energetic Materials Frontiers,
Journal Year:
2024,
Volume and Issue:
5(3), P. 191 - 198
Published: Feb. 9, 2024
This
study
effectively
synthesized
thiazole-4-carbohydrazide
(SZCA)
and
its
ionic
salt
SZCA·HClO4
energetic
complex
Cu(SZCA)2(ClO4)2
(ECC-1).
The
new
compound
SZCA,
ECC-1
were
fully
characterized
through
elemental
analysis,
infrared
spectroscopy,
13C
NMR
spectroscopy
thermal
stability
analysis.
combustion
heat
of
was
measured
by
oxygen
bomb
calorimetry,
detonation
performance
predicted
Kamlet-Jacobs
formula
EXPLO5,
respectively.
mechanical
sensitivity
tested
using
BAM
method.
In
particular,
we
comprehensively
evaluated
the
initiation
ability
lead
plate
destruction
experiment
laser
experiment.
results
show
that
have
a
decomposition
temperature
236
°C,
exhibits
acceptable
(impact
sensitivity:
3.4
J,
friction
4
N),
decent
properties
(D:
6.6
km
s−1,
P:
21.3
GPa).
And
could
be
initiated
single-pulse
(λ:
808
nm,
20
W,
t:
3
ms),
successfully
detonated
next
charge,
such
as
RDX
CL-20.
