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

using model chemistry: MP3=FULL/6-31G(2df,p)

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=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-244.530920
Energy at 298.15K 
HF Energy-243.688977
Nuclear repulsion energy126.287657
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=FULL/6-31G(2df,p)
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' 3267 3267 0.69      
2 A' 3165 3165 0.42      
3 A' 1552 1552 69.26      
4 A' 1516 1516 16.44      
5 A' 1459 1459 3.38      
6 A' 1184 1184 1.52      
7 A' 998 998 6.46      
8 A' 708 708 29.21      
9 A' 646 646 5.72      
10 A" 3295 3295 0.00      
11 A" 1829 1829 325.95      
12 A" 1510 1510 28.66      
13 A" 1155 1155 9.82      
14 A" 499 499 0.95      
15 A" 32i 32i 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11375.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11375.4 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=FULL/6-31G(2df,p)
ABC
0.41909 0.36038 0.20109

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.306 0.000
N2 -0.010 0.172 0.000
H3 1.042 -1.614 0.000
H4 -0.493 -1.645 0.902
H5 -0.493 -1.645 -0.902
O6 0.001 0.721 -1.075
O7 0.001 0.721 1.075

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.47801.08601.08271.08272.29432.2943
N21.47802.07322.08542.08541.20741.2074
H31.08602.07321.78071.78072.77352.7735
H41.08272.08541.78071.80383.12272.4231
H51.08272.08541.78071.80382.42313.1227
O62.29431.20742.77353.12272.42312.1509
O72.29431.20742.77352.42313.12272.1509

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 117.024 C1 N2 O7 117.024
N2 C1 H3 106.919 N2 C1 H4 108.058
N2 C1 H5 108.058 H3 C1 H4 110.381
H3 C1 H5 110.381 H4 C1 H5 112.814
O6 N2 O7 125.929
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability