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All results from a given calculation for NH2NO2 (nitramide)

using model chemistry: QCISD/cc-pVTZ

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 QCISD/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD/cc-pVTZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVTZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at QCISD/cc-pVTZ
 hartrees
Energy at 0K-260.640988
Energy at 298.15K-260.646054
HF Energy-259.747020
Nuclear repulsion energy127.862503
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 QCISD/cc-pVTZ
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' 3567 3408 29.25      
2 A' 1635 1562 58.10      
3 A' 1439 1375 197.07      
4 A' 1047 1000 18.74      
5 A' 857 818 162.39      
6 A' 754 720 86.90      
7 A' 666 636 56.69      
8 A" 3695 3531 50.26      
9 A" 1710 1634 358.96      
10 A" 1271 1214 77.59      
11 A" 578 552 1.63      
12 A" 405 387 28.02      

Unscaled Zero Point Vibrational Energy (zpe) 8811.1 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 8419.0 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 QCISD/cc-pVTZ
ABC
0.42619 0.40102 0.20828

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.075 -1.246 0.000
N2 0.008 0.145 0.000
O3 0.008 0.680 1.087
O4 0.008 0.680 -1.087
H5 -0.353 -1.584 -0.849
H6 -0.353 -1.584 0.849

Atom - Atom Distances (Å)
  N1 N2 O3 O4 H5 H6
N11.39272.21222.21221.00891.0089
N21.39271.21111.21111.95941.9594
O32.21221.21112.17342.99982.3044
O42.21221.21112.17342.30442.9998
H51.00891.95942.99982.30441.6971
H61.00891.95942.30442.99981.6971

picture of nitramide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 O3 116.164 N1 N2 O4 116.164
N2 N1 H5 108.287 N2 N1 H6 108.287
O3 N2 O4 127.607 H5 N1 H6 114.503
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability