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

using model chemistry: MP2/6-311+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 MP2/6-311+G(3df,2p)
 hartrees
Energy at 0K-244.621605
Energy at 298.15K 
HF Energy-243.753608
Nuclear repulsion energy124.965471
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 MP2/6-311+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' 3227 3044 1.16      
2 A' 3120 2943 1.54      
3 A' 1500 1415 12.41      
4 A' 1435 1354 8.56      
5 A' 1424 1343 44.91      
6 A' 1150 1085 0.16      
7 A' 949 896 4.52      
8 A' 678 640 22.39      
9 A' 609 575 2.72      
10 A" 3254 3070 0.04      
11 A" 1760 1660 170.45      
12 A" 1494 1409 24.72      
13 A" 1131 1067 3.29      
14 A" 485 458 0.84      
15 A" 22i 20i 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 11096.5 cm-1
Scaled (by 0.9434) Zero Point Vibrational Energy (zpe) 10468.5 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 MP2/6-311+G(3df,2p)
ABC
0.40833 0.35497 0.19693

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.316 0.000
N2 -0.010 0.168 0.000
H3 1.043 -1.621 0.000
H4 -0.493 -1.655 0.902
H5 -0.493 -1.655 -0.902
O6 0.001 0.728 -1.091
O7 0.001 0.728 1.091

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48371.08621.08291.08292.31672.3167
N21.48372.07592.09022.09021.22621.2262
H31.08622.07591.78171.78172.79162.7916
H41.08292.09021.78171.80493.14542.4406
H51.08292.09021.78171.80492.44063.1454
O62.31671.22622.79163.14542.44062.1814
O72.31671.22622.79162.44063.14542.1814

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 117.180 C1 N2 O7 117.180
N2 C1 H3 106.737 N2 C1 H4 108.031
N2 C1 H5 108.031 H3 C1 H4 110.453
H3 C1 H5 110.453 H4 C1 H5 112.885
O6 N2 O7 125.618
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability