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

using model chemistry: MP2/6-311G**

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 MP2/6-311G**
 hartrees
Energy at 0K-244.464099
Energy at 298.15K 
HF Energy-243.722408
Nuclear repulsion energy124.608307
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 MP2/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3232 3071 2.12      
2 A' 3123 2967 1.83      
3 A' 1504 1429 11.28      
4 A' 1440 1368 0.98      
5 A' 1430 1359 69.11      
6 A' 1153 1096 0.13      
7 A' 953 906 8.96      
8 A' 684 650 25.08      
9 A' 606 576 3.80      
10 A" 3257 3094 0.28      
11 A" 1806 1716 107.38      
12 A" 1493 1418 18.27      
13 A" 1135 1078 3.30      
14 A" 489 465 0.42      
15 A" 39 37 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 11171.3 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 10615.0 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 MP2/6-311G**
ABC
0.40554 0.35310 0.19579

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.002 -1.320 0.000
N2 -0.014 0.171 0.000
H3 1.048 -1.626 0.000
H4 -0.496 -1.659 0.905
H5 -0.496 -1.659 -0.905
O6 0.002 0.729 -1.094
O7 0.002 0.729 1.094

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49111.09001.08711.08712.32272.3227
N21.49112.08822.09802.09801.22841.2284
H31.09002.08821.78981.78982.80002.8000
H41.08712.09801.78981.80943.15422.4471
H51.08712.09801.78981.80942.44713.1542
O62.32271.22842.80003.15422.44712.1888
O72.32271.22842.80002.44713.15422.1888

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 116.991 C1 N2 O7 116.991
N2 C1 H3 106.975 N2 C1 H4 107.900
N2 C1 H5 107.900 H3 C1 H4 110.589
H3 C1 H5 110.589 H4 C1 H5 112.648
O6 N2 O7 125.970
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability