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

using model chemistry: MP2/6-31G*

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 MP2/6-31G*
 hartrees
Energy at 0K-244.331963
Energy at 298.15K-244.336693
HF Energy-243.653395
Nuclear repulsion energy123.902152
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 MP2/6-31G*
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' 3261 3075 1.20      
2 A' 3151 2972 1.25      
3 A' 1535 1448 10.80      
4 A' 1464 1381 0.89      
5 A' 1435 1353 59.39      
6 A' 1171 1105 0.37      
7 A' 943 889 5.67      
8 A' 672 634 27.34      
9 A' 600 566 4.17      
10 A" 3286 3099 0.08      
11 A" 1815 1712 83.76      
12 A" 1530 1443 19.18      
13 A" 1150 1085 2.26      
14 A" 485 457 0.49      
15 A" 28 27 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 11264.3 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 10622.3 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 MP2/6-31G*
ABC
0.39867 0.35175 0.19378

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.018 -1.317 0.000
N2 -0.078 0.176 0.000
H3 1.077 -1.577 0.000
H4 -0.461 -1.682 0.905
H5 -0.461 -1.682 -0.905
O6 0.018 0.725 -1.098
O7 0.018 0.725 1.098

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49591.09121.08741.08742.31852.3185
N21.49592.09922.10262.10261.23141.2314
H31.09122.09921.78811.78812.76192.7619
H41.08742.10261.78811.81063.16852.4624
H51.08742.10261.78811.81062.46243.1685
O62.31851.23142.76193.16852.46242.1962
O72.31851.23142.76192.46243.16852.1962

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 116.109 C1 N2 O7 116.109
N2 C1 H3 107.441 N2 C1 H4 107.914
N2 C1 H5 107.914 H3 C1 H4 110.324
H3 C1 H5 110.324 H4 C1 H5 112.723
O6 N2 O7 126.179
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability