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

using model chemistry: MP2/aug-cc-pVQZ

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 MP2/aug-cc-pVQZ
 hartrees
Energy at 0K-244.711953
Energy at 298.15K 
HF Energy-243.776044
Nuclear repulsion energy125.031438
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 MP2/aug-cc-pVQZ
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 3065 1.15      
2 A' 3118 2961 1.35      
3 A' 1497 1422 12.09      
4 A' 1430 1358 11.12      
5 A' 1420 1348 42.58      
6 A' 1148 1090 0.16      
7 A' 947 900 4.54      
8 A' 677 643 22.61      
9 A' 607 576 2.90      
10 A" 3254 3090 0.07      
11 A" 1752 1664 170.12      
12 A" 1489 1414 24.90      
13 A" 1129 1072 3.39      
14 A" 484 459 0.87      
15 A" 13 12 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 11095.4 cm-1
Scaled (by 0.9497) Zero Point Vibrational Energy (zpe) 10537.3 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 MP2/aug-cc-pVQZ
ABC
0.40882 0.35533 0.19715

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.315 0.000
N2 -0.011 0.167 0.000
H3 1.042 -1.620 0.000
H4 -0.492 -1.653 0.902
H5 -0.492 -1.653 -0.902
O6 0.001 0.728 -1.090
O7 0.001 0.728 1.090

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48231.08501.08181.08182.31572.3157
N21.48232.07382.08722.08721.22601.2260
H31.08502.07381.78021.78022.79002.7900
H41.08182.08721.78021.80363.14292.4384
H51.08182.08721.78021.80362.43843.1429
O62.31571.22602.79003.14292.43842.1801
O72.31571.22602.79002.43843.14292.1801

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 117.223 C1 N2 O7 117.223
N2 C1 H3 106.737 N2 C1 H4 107.962
N2 C1 H5 107.962 H3 C1 H4 110.490
H3 C1 H5 110.490 H4 C1 H5 112.940
O6 N2 O7 125.532
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability