In
this
work,
we
constructed
a
novel
heat-resistant
energetic
material
with
four
ring
long
chain
structure
bridged
by
azo
bis
(1,2,4-triazole)
using
electrochemical
synthesis
method.
terms
of
structure,
the
synthesized
1,2-bis(5-(1H-tetrazol-5-yl)-1H-1,2,4-triazol-3-yl)-diazene
(H4AzTT)
exhibits
zwitterionic
properties
and
can
be
obtained
in
form
rare
tetravalent
when
used
as
nitrogen
rich
anion.
Due
to
high
content
molecule
large
conjugated
system
formed
bonds,
H4AzTT
its
salts
(M-AzTT)
exhibit
excellent
thermal
stability
energy
performance.
Among
them,
K4-AzTT·3H2O
possess
highest
decomposition
428
℃.
Specifically,
traditional
chemical
chains
may
result
breakage
or
by-product
generation,
while
method
is
efficient
controllable,
allows
for
direct
salt
(potassium,
lithium,
sodium,
guanidine)
simply
changing
electrolyte.
Electrochemical
testing
situ
ATR-SEIRAS
analysis
showed
that
electro
M-AzTT
occurred
earlier
than
OER.
Therefore,
under
alkaline
conditions,
65%
yield
81.5%
Faraday
efficiency
were
achieved
at
1.7
V
vs.
RHE.
summary,
study
not
only
constructs
super
compounds,
but
also
represents
new
breakthrough
electrochemistry
field
materials.
Organic Letters,
Год журнала:
2024,
Номер
26(9), С. 1952 - 1958
Опубликована: Фев. 27, 2024
Because
of
environmental
and
health
impacts,
there
is
an
ongoing
necessity
to
develop
sustainable
primary
explosives
replace
existing
lead-based
analogues.
Now
we
describe
a
potential
explosive,
dipotassium
4,6-dinitro-5,7-dioxidobenzo[c][1,2,5]oxadiazole
1-oxide
(K
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(8), С. 10211 - 10217
Опубликована: Фев. 19, 2024
This
work
reports
a
strategy
by
enhancing
conjugation
effect
and
synthesizes
symmetrical
planar
compound,
1,2-bis
(4,5-di(1H-tetrazol-5-yl)-2H-1,2,3-triazol-2-yl)diazene
(NL24).
The
incorporation
of
azo
1,2,3-triazole
moieties
manifests
synergistic
effect,
amplifying
the
bridge
thereby
elevating
stability
NL24
(Td:
263
°C,
IS:
7
J).
Notably,
NL24,
possessing
structural
configuration
comprising
four
tetrazoles
harboring
total
24
nitrogen
atoms,
exhibits
excellent
detonation
performances
(ΔHf:
6.06
kJ
g–1,
VD:
9002
m
s–1).
achieves
balance
energy
polycyclic
provides
direction
for
high-performance
energetic
materials.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
unknown
Опубликована: Апрель 10, 2024
Due
to
the
inherent
conflict
between
energy
and
safety,
construction
of
energetic
materials
or
metal–organic
frameworks
(E-MOFs)
with
balanced
thermal
stability,
sensitivity,
high
detonation
performance
is
challenging
for
chemists
worldwide.
In
this
regard,
in
recent
times
self-assembly
ligands
(high
nitrogen-
oxygen-containing
small
molecules)
alkali
metals
were
probed
as
a
promising
strategy
build
high-energy
excellent
density,
insensitivity,
performance.
Herein,
based
on
nitrogen-rich
N,N′-([4,4′-bi(1,2,4-triazole)]-3,3′-dial)dinitramide
(H2BDNBT)
ligand,
two
new
environmentally
benign
E-MOFs
including
potassium
[K2BDNBT]n
(K-MOF)
sodium
[Na2BDNBT]n
(Na-MOF)
have
been
introduced
characterized
by
NMR,
IR,
TGA-DSC,
ICP-MS,
PXRD,
elemental
analyses,
SCXRD.
Interestingly,
Na-MOF
K-MOF
demonstrate
solvent-free
3D
dense
having
crystal
densities
2.16
2.14
g
cm–3,
respectively.
Both
show
velocity
(VOD)
8557–9724
m/s,
pressure
(DP)
30.41–36.97
GPa,
positive
heat
formation
122.52–242.25
kJ
mol–1,
insensitivity
mechanical
stimuli
such
impact
friction
(IS
=
30–40
J,
FS
>
360
N).
Among
them,
has
(9724
m/s)
superior
that
conventional
explosives.
Additionally,
both
are
highly
heat-resistant,
higher
decomposition
(319
°C
293
Na-MOF)
than
traditional
explosives
RDX
(210
°C),
HMX
(279
CL-20
(221
°C).
This
stability
ascribed
extensive
structure
strong
covalent
interactions
BDNBT2–
K(I)/Na(I)
ions.
To
best
our
knowledge,
first
time,
we
report
dinitramino-based
stable
secondary
explosives,
may
serve
next-generation
high-energy-density
material
replacement
presently
used
thermally
RDX,
HNS,
HMX,
CL-20.
The Journal of Organic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 7, 2025
Herein,
we
report
the
successful
synthesis
of
a
series
asymmetric
bistetrazole-based
energetic
compounds
(4,
8,
4a-c,
and
5a-c)
starting
from
2-(5-amino-4-nitro-1H-pyrazol-3-yl)-2H-5-cyanotetrazol
(3),
which
was
obtained
via
reaction
3,5-diamino-4-nitropyrazole
hydrochloride
with
diazoacetonitrile
using
[3
+
2]
cycloaddition
strategy.
All
newly
synthesized
displayed
superior
detonation
performances,
particularly
2'-(5-amino-4-nitro-1H-pyrazol-4-yl)-2H,2'H-5,5'-bistetrazole
(4),
exhibited
exceptional
overall
performances.
These
findings
underscore
potential
bistetrazole
derivatives
as
promising
candidates
for
development
advanced
materials.
Canadian Journal of Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 22, 2025
The
long
nitrogen
chain
compound,
as
a
potential
energetic
material,
exhibits
remarkable
explosive
properties.
Therefore,
it
is
imperative
to
conduct
an
in-depth
investigation
into
its
structural
characteristics
and
construction
mechanism.
Herein,
catenated
N
11
cation
was
theoretically
studied.
It
has
relatively
low
sensitivity
possible
decomposition
mechanism
triggered
by
the
weak
N−N
bonds,
which
agrees
well
with
experimental
results.
We
proposed
synthesis
involving
bond
formation
two-step
proton
shift
energy
barriers
of
6.63,
57.53,
43.81
kcal
mol
−1
,
respectively.
effectively
strengthens
newly
formed
while
maintaining
balance.
Furthermore,
comparative
reaction
studied
highlight
value
utilizing
heterocyclic
structures
for
developing
compounds.
These
results
give
theoretical
support
new
high
density
materials
all-nitrogen
materials.
