Crystal Growth & Design,
Journal Year:
2023,
Volume and Issue:
23(9), P. 6756 - 6764
Published: July 27, 2023
A
series
of
novel
energetic
materials
(EMs)
based
on
a
single
triazole–tetrazole
material,
(Z)-N-(5-nitro-2-(1H-tetrazol-5-yl)-2,4-dihydro-3H-1,2,4-triazol-3-ylidene)nitramide
(HNANTT)
with
tremendous
physicochemical
(d
=
1.833
g
cm–3
and
ΔHf
715.8
kJ
mol–1)
properties
(Dv
9209
m
s–1
P
36.38
GPa),
were
obtained.
Detailed
crystal
structures
HNANTT
NANTT-5,
7,
8,
9,
11,
13
determined
by
single-crystal
X-ray
diffraction.
Based
HNANTT,
three
kinds
coordination
polymers
(ECPs)
(NANTT-5,
8),
four
salts
(NANTT-9,
10,
12),
one
cocrystal
(NANTT-13)
prepared
characterized
to
develop
EMs
different
advantages.
By
modifying
all
NANTT
derivatives
(except
NANTT-10)
showed
good
mechanical
sensitivity
(IS
>
40
J,
FS
360
N),
NANTT-ECP-8
achieving
the
highest
density
(2.729
cm–3)
thermal
stability
(287
°C),
NANTT-12
has
detonation
performances
9225
30.87
GPa)
among
materials,
while
co-crystal
exhibited
best
comprehensive
performance,
superior
9035
30.12
higher
(236
N
+
O
content
83.2%.
Organic Letters,
Journal Year:
2023,
Volume and Issue:
25(19), P. 3487 - 3491
Published: May 4, 2023
A
route
for
fused
[5,5,5,6]-tetracyclic
energetic
compounds
based
on
the
facile
cyclization
reaction
has
been
explored.
Fused
compound
4
shows
a
high
measured
density
(1.924
g
cm–3),
low
sensitivity
(IS
=
10
J,
and
FS
144
N),
an
excellent
detonation
velocity
(9241
m
s–1),
which
are
much
better
than
those
of
RDX.
The
results
indicate
that
is
potential
candidate
as
secondary
explosive
provide
new
insight
into
construction
polycyclic
heterocycles.
Crystal Growth & Design,
Journal Year:
2025,
Volume and Issue:
25(5), P. 1355 - 1363
Published: Feb. 17, 2025
High-energy-density
materials
(HEDMs)
have
made
significant
progress
in
defense
and
space
applications,
but
they
still
confront
the
challenges
of
unsatisfactory
safety,
sensitivity,
chemical
applicability.
In
this
work,
a
strategy
to
synthesize
symmetric
energetic
by
introducing
flexible
chains
(−CH2–
or
−CH2CH2−)
is
reported
based
on
5-azido-3-nitro-1H-1,2,4-triazole
1.
N,N′-Methylene
bridged
compound
2
N,N′-ethylene
3
are
successfully
obtained
through
one-step
synthesis
with
high
yield.
The
introduction
significantly
reduced
mechanical
sensitivity
two
compounds.
This
change
can
be
attributed
synergistic
effects
several
factors,
including
formation
hydrogen
bonds,
oxygen
balance,
variations
ESP
molecular
surface.
As
result,
(IS
=
15
J,
FS
360
N)
>
40
exhibit
lower
compared
monocyclic
functional
integrated
1
5
42
N).
detonation
velocities
compounds
8439
7979
m·s–1,
respectively.
Organic Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 7, 2025
Heat-resistant
energetic
compounds
are
of
great
importance
in
the
field
material
chemistry.
Here,
we
report
a
practical
synthesis
series
fused-ring
via
combination
1,2,3-triazine
N-oxide
and
2,4,6-trinitroaniline
moieties.
Starting
from
known
compound
4,6-diamino-2-chloropyrimidine-5-carbonitrile
(1),
nucleophilic
substitution
followed
by
one-step
nitration
introduced
three
nitro
groups
onto
benzene
ring
moiety,
simultaneously.
The
resulting
4-7
exhibited
high
decomposition
temperature
(Td
>
250
°C)
as
well
relatively
good
detonation
properties
low
sensitivities.
Journal of Heterocyclic Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 2, 2024
ABSTRACT
Pyrazole
derivatives
are
strategic
structural
motifs
due
to
their
proven
utility
in
preparing
chemicals
biological,
pharmaceutical,
photophysical,
technological,
and
industrial
fields;
therefore,
syntheses
of
pyrazole‐containing
compounds
highly
desirable.
Some
nitrogen‐rich
pyrazoles,
specifically
nitrated
posing
high
density
moderate
thermal
stability,
have
been
used
as
energetic
since
a
amount
energy
is
stored
structures
that
can
be
released
quickly
with
detonation
power
under
external
stimuli
(i.e.,
thermal,
impact,
friction).
These
good
capacity
sensitivity
explosives,
propellants,
pyrotechnics
applications
eco‐friendly
ways.
Therefore,
this
contribution
focuses
on
recent
illustrative
examples
regarding
the
(i)
synthesis
reactivity
especially
works
last
decade,
highlighting
(ii)
analyze
scope.
