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All results from a given calculation for NH2NO2 (nitramide)

using model chemistry: MP2=FULL/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes CS 1A'

Conformer 1 (C2V)

Jump to S1C2
Vibrational Frequencies calculated at MP2=FULL/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/6-31+G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2=FULL/6-31+G**
 hartrees
Energy at 0K-260.393057
Energy at 298.15K-260.398075
HF Energy-259.648363
Nuclear repulsion energy126.101467
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2=FULL/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3589 3371 37.40      
2 A' 1653 1552 68.56      
3 A' 1414 1328 207.71      
4 A' 1024 962 17.54      
5 A' 821 771 226.23      
6 A' 722 678 71.93      
7 A' 659 619 48.57      
8 A" 3738 3511 65.80      
9 A" 1806 1697 245.77      
10 A" 1282 1204 22.53      
11 A" 564 530 1.74      
12 A" 408 383 33.08      

Unscaled Zero Point Vibrational Energy (zpe) 8839.2 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 8301.8 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/6-31+G**
ABC
0.41072 0.39405 0.20259

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.091 -1.253 0.000
N2 0.000 0.140 0.000
O3 0.000 0.688 1.108
O4 0.000 0.688 -1.108
H5 -0.320 -1.609 -0.854
H6 -0.320 -1.609 0.854

Atom - Atom Distances (Å)
  N1 N2 O3 O4 H5 H6
N11.39612.23692.23691.01231.0123
N21.39611.23601.23601.97291.9729
O32.23691.23602.21583.03812.3335
O42.23691.23602.21582.33353.0381
H51.01231.97293.03812.33351.7079
H61.01231.97292.33353.03811.7079

picture of nitramide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 O3 116.258 N1 N2 O4 116.258
N2 N1 H5 108.965 N2 N1 H6 108.965
O3 N2 O4 127.363 H5 N1 H6 115.043
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability