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

using model chemistry: CCSD/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 CCSD/cc-pVTZ
 hartrees
Energy at 0K-244.620896
Energy at 298.15K 
HF Energy-243.758342
Nuclear repulsion energy125.676978
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 CCSD/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' 3208 3019 1.68      
2 A' 3112 2929 1.45      
3 A' 1504 1416 17.64      
4 A' 1486 1399 69.34      
5 A' 1433 1349 2.36      
6 A' 1163 1095 0.73      
7 A' 967 910 6.36      
8 A' 690 649 27.66      
9 A' 631 594 5.83      
10 A" 3238 3047 0.25      
11 A" 1700 1600 345.73      
12 A" 1490 1402 35.73      
13 A" 1130 1063 15.55      
14 A" 490 461 0.90      
15 A" 11i 10i 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11114.6 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 10461.0 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 CCSD/cc-pVTZ
ABC
0.41494 0.35661 0.19898

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.027 -1.305 0.000
N2 -0.117 0.179 0.000
H3 1.092 -1.524 0.000
H4 -0.435 -1.686 0.902
H5 -0.435 -1.686 -0.902
O6 0.027 0.717 -1.074
O7 0.027 0.717 1.074

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49081.08671.08271.08272.28972.2897
N21.49082.08812.09532.09531.20991.2099
H31.08672.08811.78061.78062.70352.7035
H41.08272.09531.78061.80443.14502.4527
H51.08272.09531.78061.80442.45273.1450
O62.28971.20992.70353.14502.45272.1475
O72.28971.20992.70352.45273.14502.1475

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 115.560 C1 N2 O7 115.560
N2 C1 H3 107.170 N2 C1 H4 107.961
N2 C1 H5 107.961 H3 C1 H4 110.326
H3 C1 H5 110.326 H4 C1 H5 112.876
O6 N2 O7 125.127
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability