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All results from a given calculation for CH3NO2 (Methane, nitro-)

using model chemistry: QCISD/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS Os out of place 1A'
Energy calculated at QCISD/6-311+G(3df,2p)
 hartrees
Energy at 0K-244.625040
Energy at 298.15K 
HF Energy-243.756285
Nuclear repulsion energy125.552194
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/6-311+G(3df,2p)
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' 3203 3055 1.56      
2 A' 3107 2963 1.89      
3 A' 1503 1434 13.29      
4 A' 1477 1409 65.22      
5 A' 1441 1374 3.44      
6 A' 1163 1109 0.43      
7 A' 961 916 4.24      
8 A' 685 653 24.35      
9 A' 628 599 5.11      
10 A" 3232 3082 0.12      
11 A" 1647 1571 374.52      
12 A" 1493 1424 49.74      
13 A" 1131 1079 18.71      
14 A" 489 467 1.22      
15 A" 28i 27i 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 11065.3 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 10552.9 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/6-311+G(3df,2p)
ABC
0.41496 0.35523 0.19857

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.317 0.000
N2 -0.010 0.172 0.000
H3 1.045 -1.618 0.000
H4 -0.493 -1.654 0.904
H5 -0.493 -1.654 -0.904
O6 0.001 0.726 -1.081
O7 0.001 0.726 1.081

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48921.08741.08391.08392.31142.3114
N21.48922.07872.09472.09471.21471.2147
H31.08742.07871.78481.78482.78532.7853
H41.08392.09471.78481.80783.13872.4378
H51.08392.09471.78481.80782.43783.1387
O62.31141.21472.78533.13872.43782.1621
O72.31141.21472.78532.43783.13872.1621

picture of Methane, nitro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O6 117.121 C1 N2 O7 117.121
N2 C1 H3 106.520 N2 C1 H4 107.952
N2 C1 H5 107.952 H3 C1 H4 110.567
H3 C1 H5 110.567 H4 C1 H5 113.001
O6 N2 O7 125.738
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability