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All results from a given calculation for NH2NO2 (nitramide)

using model chemistry: QCISD(T)=FULL/cc-pVDZ

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

Conformer 2 (CS)

Jump to S1C1
Energy calculated at QCISD(T)=FULL/cc-pVDZ
 hartrees
Energy at 0K-260.425642
Energy at 298.15K-260.430629
HF Energy-259.660083
Nuclear repulsion energy126.366270
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(T)=FULL/cc-pVDZ
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' 3507 3364        
2 A' 1610 1544        
3 A' 1402 1345        
4 A' 1032 990        
5 A' 862 827        
6 A' 728 698        
7 A' 653 626        
8 A" 3638 3489        
9 A" 1716 1646        
10 A" 1263 1212        
11 A" 559 536        
12 A" 363 348        

Unscaled Zero Point Vibrational Energy (zpe) 8667.1 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 8311.7 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(T)=FULL/cc-pVDZ
ABC
0.41612 0.39098 0.20356

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.091 -1.266 0.000
N2 0.006 0.151 0.000
O3 0.006 0.686 1.099
O4 0.006 0.686 -1.099
H5 -0.387 -1.586 -0.846
H6 -0.387 -1.586 0.846

Atom - Atom Distances (Å)
  N1 N2 O3 O4 H5 H6
N11.41902.24152.24151.02271.0227
N21.41901.22271.22271.97101.9710
O32.24151.22272.19873.01632.3190
O42.24151.22272.19872.31903.0163
H51.02271.97103.01632.31901.6920
H61.02271.97102.31903.01631.6920

picture of nitramide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 O3 115.904 N1 N2 O4 115.904
N2 N1 H5 106.520 N2 N1 H6 106.520
O3 N2 O4 128.093 H5 N1 H6 111.623
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability