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

using model chemistry: QCISD/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-244.384280
Energy at 298.15K 
HF Energy-243.670260
Nuclear repulsion energy124.311640
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/6-31+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' 3257 3079 1.88      
2 A' 3150 2978 2.84      
3 A' 1526 1442 9.71      
4 A' 1466 1386 9.33      
5 A' 1453 1374 56.10      
6 A' 1168 1104 0.22      
7 A' 941 890 2.87      
8 A' 668 632 25.57      
9 A' 606 573 5.42      
10 A" 3285 3106 0.22      
11 A" 1627 1538 342.45      
12 A" 1514 1431 60.41      
13 A" 1141 1079 24.35      
14 A" 485 458 1.01      
15 A" 46 43 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11165.6 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 10556.0 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/6-31+G**
ABC
0.40411 0.35083 0.19474

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.326 0.000
N2 -0.012 0.169 0.000
H3 1.046 -1.627 0.000
H4 -0.496 -1.659 0.904
H5 -0.496 -1.659 -0.904
O6 0.001 0.732 -1.097
O7 0.001 0.732 1.097

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49481.08751.08421.08422.33152.3315
N21.49482.08502.09572.09571.23271.2327
H31.08752.08501.78801.78802.80352.8035
H41.08422.09571.78801.80783.15672.4495
H51.08422.09571.78801.80782.44953.1567
O62.33151.23272.80353.15672.44952.1931
O72.33151.23272.80352.44953.15672.1931

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 117.162 C1 N2 O7 117.162
N2 C1 H3 106.623 N2 C1 H4 107.640
N2 C1 H5 107.640 H3 C1 H4 110.833
H3 C1 H5 110.833 H4 C1 H5 112.963
O6 N2 O7 125.642
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability