Exploring the energetic potential of 2,5-disubstituted tetrazoles: a case of 2,5-bis(oxadiazolyl)tetrazoles
Dalton Transactions,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 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.
Язык: Английский
Energetic Nitrated Azole Assemblies: Linear Alliance of Isomeric Furazan-1,2,4-triazole-pyrazole Combinations
Crystal Growth & Design,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 19, 2024
While
the
effect
of
isomerism
on
properties
energetic
molecules
has
long
been
recognized,
use
this
phenomenon
to
deliberately
improve
performance
materials
now
approached.
Here,
we
report
development
effective
protocols
for
preparation
isomeric
compounds
with
a
furazan-triazole-pyrazole
framework,
which
differ
in
binding
points
these
subunits
and
position
nitro
group.
The
two
synthesized
isomers
readily
form
X-ray
quality
crystals
solvates
DMSO
water,
but
only
one
isomer
was
able
give
unsolvated
crystals.
Significant
differences
molecular
geometry
noncovalent
interactions
due
solvent
incorporated
into
crystal
lattice
are
highlighted.
ambiguity
evaluating
structure–property
relationships
single
compound
from
data
its
solvate
is
demonstrated.
first
time,
3-(5-(5-(3,4-dinitro-1H-pyrazol-5-yl)-1H-1,2,4-triazol-3-yl)-4-nitrofurazan
(6),
greater
interest
because,
unlike
other
isomer,
it
not
hygroscopic
higher
density.
Isomer
6
shock
sensitivity
detonation
velocity
similar
those
RDX,
more
thermally
stable
insensitive
friction.
Язык: Английский
Energetic azine N-oxides: State-of-the-art achievements in the synthesis and performance
Chemical Engineering Journal,
Год журнала:
2024,
Номер
unknown, С. 158859 - 158859
Опубликована: Дек. 1, 2024
Язык: Английский
First Alliance of Pyrazole and Furoxan Leading to High-Performance Energetic Materials
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 25, 2024
Nitrogen
heterocyclic
scaffolds
retain
their
leading
position
as
valuable
building
blocks
in
material
science,
particularly
for
the
design
of
small-molecule
energetic
materials.
However,
search
more
balanced
combinations
directly
linked
cores
is
far
from
being
exhausted
and
aims
to
reach
ideally
high-energy
substances.
Herein,
we
present
synthetic
route
novel
pyrazole-furoxan
framework
enriched
with
nitro
groups
demonstrate
a
promising
set
properties,
viz.,
good
thermal
stability,
acceptable
mechanical
sensitivity,
high
detonation
performance.
In-depth
crystal
analysis
showed
that
isomers
having
lower-impact
sensitivity
values
both
types
regioisomeric
pairs
are
those
exocyclic
furoxan
oxygen
atom
closer
pyrazole
ring.
Owing
favorable
combination
densities
(1.83-1.93
g
cm
Язык: Английский
Trinitroethyl nitropyrazole-3-carboxylates
FirePhysChem,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 1, 2024
Spotlights: Untargeted Forensic Drug Detection, Burn Pit Smoke Inhalation, and Problems in the Friction Sensitivity Literature
ACS Chemical Health & Safety,
Год журнала:
2024,
Номер
31(4), С. 274 - 275
Опубликована: Июль 3, 2024
Язык: Английский
Azobis(polynitrophenyl-1,2,5-oxadiazoles) as Heat-Resistant Friction-Insensitive Energetic Materials
The Journal of Organic Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 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
Язык: Английский