Current trends in organic chemistry: contribution of the N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences
Russian Chemical Bulletin,
Journal Year:
2024,
Volume and Issue:
73(9), P. 2423 - 2532
Published: Sept. 1, 2024
Language: Английский
Energetic azine N-oxides: State-of-the-art achievements in the synthesis and performance
Chemical Engineering Journal,
Journal Year:
2024,
Volume and Issue:
unknown, P. 158859 - 158859
Published: Dec. 1, 2024
Language: Английский
First Alliance of Pyrazole and Furoxan Leading to High-Performance Energetic Materials
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 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
Language: Английский
Azobis(polynitrophenyl-1,2,5-oxadiazoles) as Heat-Resistant Friction-Insensitive Energetic Materials
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
Language: Английский