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

using model chemistry: CISD/6-311G*

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 CISD/6-311G*
 hartrees
Energy at 0K-244.348273
Energy at 298.15K 
HF Energy-243.723432
Nuclear repulsion energy126.545521
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 CISD/6-311G*
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' 3293 3047 2.38      
2 A' 3193 2954 1.30      
3 A' 1582 1464 92.87      
4 A' 1552 1436 18.59      
5 A' 1502 1390 3.11      
6 A' 1213 1122 1.40      
7 A' 1015 939 7.60      
8 A' 722 668 32.77      
9 A' 657 608 8.97      
10 A" 3323 3075 0.70      
11 A" 1820 1684 411.51      
12 A" 1543 1428 34.99      
13 A" 1183 1095 16.59      
14 A" 515 477 0.91      
15 A" 31 28 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11571.5 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 10707.1 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 CISD/6-311G*
ABC
0.42271 0.35959 0.20168

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.309 0.000
N2 -0.013 0.175 0.000
H3 1.043 -1.609 0.000
H4 -0.492 -1.647 0.900
H5 -0.492 -1.647 -0.900
O6 0.001 0.721 -1.071
O7 0.001 0.721 1.071

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48341.08441.08061.08062.29462.2946
N21.48342.07322.08762.08761.20191.2019
H31.08442.07321.77971.77972.76792.7679
H41.08062.08761.77971.80013.11992.4248
H51.08062.08761.77971.80012.42483.1199
O62.29461.20192.76793.11992.42482.1410
O72.29461.20192.76792.42483.11992.1410

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 117.022 C1 N2 O7 117.022
N2 C1 H3 106.653 N2 C1 H4 107.983
N2 C1 H5 107.983 H3 C1 H4 110.583
H3 C1 H5 110.583 H4 C1 H5 112.796
O6 N2 O7 125.917
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability