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

using model chemistry: MP4/6-311+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 MP4/6-311+G(3df,2p)
 hartrees
Energy at 0K-244.677619
Energy at 298.15K 
HF Energy-243.751022
Nuclear repulsion energy124.212650
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 MP4/6-311+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' 3185 3006        
2 A' 3084 2911        
3 A' 1487 1403        
4 A' 1419 1340        
5 A' 1375 1298        
6 A' 1138 1074        
7 A' 912 861        
8 A' 658 621        
9 A' 595 562        
10 A" 3209 3029        
11 A" 1628 1537        
12 A" 1480 1397        
13 A" 1114 1052        
14 A" 473 447        
15 A" 43i 41i        

Unscaled Zero Point Vibrational Energy (zpe) 10857.1 cm-1
Scaled (by 0.9438) Zero Point Vibrational Energy (zpe) 10246.9 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 MP4/6-311+G(3df,2p)
ABC
0.40270 0.35105 0.19447

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.324 0.000
N2 -0.010 0.170 0.000
H3 1.046 -1.629 0.000
H4 -0.496 -1.662 0.905
H5 -0.496 -1.662 -0.905
O6 0.001 0.732 -1.099
O7 0.001 0.732 1.099

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49451.08911.08621.08622.33102.3310
N21.49452.08692.10052.10051.23381.2338
H31.08912.08691.78821.78822.80622.8062
H41.08622.10051.78821.81053.16092.4522
H51.08622.10051.78821.81052.45223.1609
O62.33101.23382.80623.16092.45222.1972
O72.33101.23382.80622.45223.16092.1972

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 117.059 C1 N2 O7 117.059
N2 C1 H3 106.696 N2 C1 H4 107.916
N2 C1 H5 107.916 H3 C1 H4 110.573
H3 C1 H5 110.573 H4 C1 H5 112.898
O6 N2 O7 125.861
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability