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

using model chemistry: QCISD(T)/cc-pVDZ

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 QCISD(T)/cc-pVDZ
 hartrees
Energy at 0K-244.415802
Energy at 298.15K 
HF Energy-243.677118
Nuclear repulsion energy124.110925
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 QCISD(T)/cc-pVDZ
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' 3202 3052        
2 A' 3092 2947        
3 A' 1471 1402        
4 A' 1418 1352        
5 A' 1396 1330        
6 A' 1124 1072        
7 A' 931 887        
8 A' 669 638        
9 A' 598 570        
10 A" 3227 3076        
11 A" 1655 1577        
12 A" 1458 1390        
13 A" 1098 1046        
14 A" 477 455        
15 A" 44 41        

Unscaled Zero Point Vibrational Energy (zpe) 10929.9 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 10417.3 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 QCISD(T)/cc-pVDZ
ABC
0.40264 0.34994 0.19431

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.002 -1.326 0.000
N2 -0.013 0.176 0.000
H3 1.060 -1.636 0.000
H4 -0.502 -1.668 0.915
H5 -0.502 -1.668 -0.915
O6 0.002 0.731 -1.098
O7 0.002 0.731 1.098

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.50181.10251.09941.09942.33142.3314
N21.50182.10512.11612.11611.23011.2301
H31.10252.10511.81051.81052.81532.8153
H41.09942.11611.81051.83093.17202.4582
H51.09942.11611.81051.83092.45823.1720
O62.33141.23012.81533.17202.45822.1951
O72.33141.23012.81532.45823.17202.1951

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 116.821 C1 N2 O7 116.821
N2 C1 H3 106.862 N2 C1 H4 107.875
N2 C1 H5 107.875 H3 C1 H4 110.616
H3 C1 H5 110.616 H4 C1 H5 112.744
O6 N2 O7 126.324
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability