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

using model chemistry: MP3/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-244.611319
Energy at 298.15K 
HF Energy-243.759585
Nuclear repulsion energy126.207215
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/cc-pVTZ
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 3049 1.35      
2 A' 3131 2958 0.86      
3 A' 1536 1451 72.57      
4 A' 1503 1420 17.28      
5 A' 1440 1360 2.44      
6 A' 1168 1104 1.02      
7 A' 992 937 7.52      
8 A' 703 664 29.27      
9 A' 640 605 5.54      
10 A" 3259 3079 0.13      
11 A" 1790 1691 382.01      
12 A" 1494 1412 29.68      
13 A" 1138 1075 13.13      
14 A" 497 469 1.04      
15 A" 29 27 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11273.7 cm-1
Scaled (by 0.9447) Zero Point Vibrational Energy (zpe) 10650.2 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/cc-pVTZ
ABC
0.41982 0.35849 0.20066

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.310 0.000
N2 -0.010 0.173 0.000
H3 1.041 -1.617 0.000
H4 -0.493 -1.648 0.901
H5 -0.493 -1.648 -0.901
O6 0.001 0.723 -1.074
O7 0.001 0.723 1.074

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48291.08521.08151.08152.29922.2992
N21.48292.07602.08802.08801.20711.2071
H31.08522.07601.77941.77942.77732.7773
H41.08152.08801.77941.80273.12512.4274
H51.08152.08801.77941.80272.42743.1251
O62.29921.20712.77733.12512.42742.1490
O72.29921.20712.77732.42743.12512.1490

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 117.096 C1 N2 O7 117.096
N2 C1 H3 106.858 N2 C1 H4 107.998
N2 C1 H5 107.998 H3 C1 H4 110.421
H3 C1 H5 110.421 H4 C1 H5 112.901
O6 N2 O7 125.787
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability