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

using model chemistry: MP2/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 MP2/cc-pVDZ
 hartrees
Energy at 0K-244.376707
Energy at 298.15K 
HF Energy-243.677075
Nuclear repulsion energy124.251164
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/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' 3248 3094 1.41      
2 A' 3129 2980 2.16      
3 A' 1482 1411 10.78      
4 A' 1433 1365 68.83      
5 A' 1408 1341 3.37      
6 A' 1133 1079 0.42      
7 A' 950 905 9.91      
8 A' 682 649 25.88      
9 A' 605 576 4.05      
10 A" 3273 3118 0.11      
11 A" 1818 1732 91.66      
12 A" 1470 1400 18.35      
13 A" 1115 1062 2.41      
14 A" 484 461 0.36      
15 A" 22 21 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 11125.4 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 10597.0 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 MP2/cc-pVDZ
ABC
0.40229 0.35230 0.19489

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.002 -1.320 0.000
N2 -0.013 0.172 0.000
H3 1.055 -1.633 0.000
H4 -0.499 -1.664 0.912
H5 -0.499 -1.664 -0.912
O6 0.002 0.730 -1.098
O7 0.002 0.730 1.098

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49231.09911.09601.09602.32532.3253
N21.49232.09762.10752.10751.23181.2318
H31.09912.09761.80251.80252.81022.8102
H41.09602.10751.80251.82393.16602.4529
H51.09602.10751.80251.82392.45293.1660
O62.32531.23182.81023.16602.45292.1970
O72.32531.23182.81022.45293.16602.1970

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 116.885 C1 N2 O7 116.885
N2 C1 H3 107.108 N2 C1 H4 108.046
N2 C1 H5 108.046 H3 C1 H4 110.402
H3 C1 H5 110.402 H4 C1 H5 112.626
O6 N2 O7 126.191
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability