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

using model chemistry: MP4/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-244.488770
Energy at 298.15K 
HF Energy-243.696813
Nuclear repulsion energy123.149282
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 MP4/6-31G*
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' 3209 3135        
2 A' 3106 3035        
3 A' 1515 1480        
4 A' 1442 1409        
5 A' 1386 1354        
6 A' 1154 1127        
7 A' 907 886        
8 A' 654 639        
9 A' 589 575        
10 A" 3234 3159        
11 A" 1674 1635        
12 A" 1509 1475        
13 A" 1125 1099        
14 A" 474 463        
15 A" 25 25        

Unscaled Zero Point Vibrational Energy (zpe) 11001.5 cm-1
Scaled (by 0.9769) Zero Point Vibrational Energy (zpe) 10747.4 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 MP4/aug-cc-pVDZ
ABC
0.39567 0.34544 0.19129

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.335 0.000
N2 -0.011 0.171 0.000
H3 1.059 -1.641 0.000
H4 -0.502 -1.673 0.916
H5 -0.502 -1.673 -0.916
O6 0.001 0.738 -1.108
O7 0.001 0.738 1.108

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.50611.10141.09841.09842.35032.3503
N21.50612.10402.11702.11701.24461.2446
H31.10142.10401.81011.81012.82912.8291
H41.09842.11701.81011.83263.18792.4702
H51.09842.11701.81011.83262.47023.1879
O62.35031.24462.82913.18792.47022.2160
O72.35031.24462.82912.47023.18792.2160

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 117.081 C1 N2 O7 117.081
N2 C1 H3 106.558 N2 C1 H4 107.715
N2 C1 H5 107.715 H3 C1 H4 110.741
H3 C1 H5 110.741 H4 C1 H5 113.064
O6 N2 O7 125.814
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability