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All results from a given calculation for NH2NO2 (nitramide)

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

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

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2=FULL/6-31G
 hartrees
Energy at 0K-260.004583
Energy at 298.15K-260.009458
HF Energy-259.481003
Nuclear repulsion energy123.025936
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/6-31G
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' 3554 3377 49.66      
2 A' 1663 1580 64.93      
3 A' 1334 1268 212.41      
4 A' 952 905 23.05      
5 A' 720 684 95.69      
6 A' 683 649 99.14      
7 A' 594 564 260.19      
8 A" 3727 3541 62.19      
9 A" 1773 1684 90.38      
10 A" 1258 1195 13.60      
11 A" 549 522 2.65      
12 A" 387 368 29.90      

Unscaled Zero Point Vibrational Energy (zpe) 8597.7 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 8168.6 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/6-31G
ABC
0.38846 0.37741 0.19227

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.075 -1.275 0.000
N2 -0.001 0.135 0.000
O3 -0.001 0.707 1.141
O4 -0.001 0.707 -1.141
H5 -0.249 -1.667 -0.878
H6 -0.249 -1.667 0.878

Atom - Atom Distances (Å)
  N1 N2 O3 O4 H5 H6
N11.41252.28902.28901.01441.0144
N21.41251.27651.27652.01962.0196
O32.28901.27652.28213.12642.4015
O42.28901.27652.28212.40153.1264
H51.01442.01963.12642.40151.7561
H61.01442.01962.40153.12641.7561

picture of nitramide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 O3 116.597 N1 N2 O4 116.597
N2 N1 H5 111.590 N2 N1 H6 111.590
O3 N2 O4 126.723 H5 N1 H6 119.899
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability