Nitrogen Backbone Oligomers.
We found that nitrogen and hydrogen directly react at room temperature and pressures of ~35 GPa forming chains of single-bonded nitrogen atom with the rest of the bonds terminated with hydrogen atoms - as identified by IR absorption, Raman, X-ray diffraction experiments and theoretical calculations. At releasing pressures below ~10 GPa, the product transforms into hydrazine. Our findings might open a way for the practical synthesis of these extremely high energetic materials as the formation of nitrogen-hydrogen compounds is favorable already at pressures above 2 GPa according to the calculations.
1] Max Planck Institute for Chemistry, Biogeochemistry Department, PO Box 3060, 55020 Mainz, Germany [2] State Key Lab of Superhard Materials, Jilin University, Changchun 130012, P. R. China.
Hongbo
H
Wang
Max Planck Institute for Chemistry, Biogeochemistry Department, PO Box 3060, 55020 Mainz, Germany.
Mikhail I
MI
Eremets
1] Max Planck Institute for Chemistry, Biogeochemistry Department, PO Box 3060, 55020 Mainz, Germany [2] Institute of Crystallography, Russian Academy of Sciences, Leninsky pr. 59, Moscow 119333, Russia.
Ivan
I
Troyan
State Key Lab of Superhard Materials, Jilin University, Changchun 130012, P. R. China.
Hanyu
H
Liu
State Key Lab of Superhard Materials, Jilin University, Changchun 130012, P. R. China.
Yanming
Y
Ma
Max Planck Institute for Chemistry, Biogeochemistry Department, PO Box 3060, 55020 Mainz, Germany.
Luc
L
Vereecken