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

using model chemistry: MP3=FULL/3-21G*

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/3-21G*
 hartrees
Energy at 0K-242.730729
Energy at 298.15K 
HF Energy-242.252442
Nuclear repulsion energy121.397516
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/3-21G*
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' 3215 3215 2.18      
2 A' 3127 3127 0.91      
3 A' 1573 1573 12.14      
4 A' 1471 1471 1.86      
5 A' 1281 1281 39.21      
6 A' 1172 1172 0.22      
7 A' 870 870 1.44      
8 A' 623 623 31.58      
9 A' 540 540 4.16      
10 A" 3246 3246 0.24      
11 A" 1600 1600 15.26      
12 A" 1536 1536 88.63      
13 A" 1130 1130 14.52      
14 A" 441 441 0.53      
15 A" 37 37 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 10929.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10929.9 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 MP3=FULL/3-21G*
ABC
0.37757 0.34201 0.18589

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.003 -1.343 0.000
N2 -0.015 0.164 0.000
H3 1.048 -1.661 0.000
H4 -0.506 -1.664 0.906
H5 -0.506 -1.664 -0.906
O6 0.003 0.744 -1.137
O7 0.003 0.744 1.137

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.50711.09181.08781.08782.37632.3763
N21.50712.11142.09842.09841.27641.2764
H31.09182.11141.79881.79882.85722.8572
H41.08782.09841.79881.81213.19832.4714
H51.08782.09841.79881.81212.47143.1983
O62.37631.27642.85723.19832.47142.2743
O72.37631.27642.85722.47143.19832.2743

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 116.987 C1 N2 O7 116.987
N2 C1 H3 107.595 N2 C1 H4 106.813
N2 C1 H5 106.813 H3 C1 H4 111.239
H3 C1 H5 111.239 H4 C1 H5 112.801
O6 N2 O7 125.972
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability