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

using model chemistry: MP3/6-31+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 MP3/6-31+G**
 hartrees
Energy at 0K-244.365574
Energy at 298.15K 
HF Energy-243.672711
Nuclear repulsion energy125.094147
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 MP3/6-31+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' 3284 3056 1.44      
2 A' 3179 2958 1.75      
3 A' 1537 1430 22.17      
4 A' 1523 1417 49.74      
5 A' 1475 1373 3.55      
6 A' 1179 1097 0.42      
7 A' 980 912 3.88      
8 A' 689 641 29.38      
9 A' 620 577 5.26      
10 A" 3314 3084 0.08      
11 A" 1778 1655 411.29      
12 A" 1525 1419 31.14      
13 A" 1159 1079 17.40      
14 A" 496 462 1.18      
15 A" 45 42 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11392.2 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 10600.4 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 MP3/6-31+G**
ABC
0.41112 0.35368 0.19721

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.319 0.000
N2 -0.012 0.168 0.000
H3 1.044 -1.624 0.000
H4 -0.495 -1.653 0.902
H5 -0.495 -1.653 -0.902
O6 0.001 0.729 -1.087
O7 0.001 0.729 1.087

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48761.08581.08241.08242.31892.3189
N21.48762.07972.08892.08891.22301.2230
H31.08582.07971.78381.78382.79362.7936
H41.08242.08891.78381.80463.14262.4402
H51.08242.08891.78381.80462.44023.1426
O62.31891.22302.79363.14262.44022.1732
O72.31891.22302.79362.44023.14262.1732

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 117.301 C1 N2 O7 117.301
N2 C1 H3 106.791 N2 C1 H4 107.700
N2 C1 H5 107.700 H3 C1 H4 110.712
H3 C1 H5 110.712 H4 C1 H5 112.942
O6 N2 O7 125.369
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability