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

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-244.678079
Energy at 298.15K 
HF Energy-243.756305
Nuclear repulsion energy125.338532
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=FULL/cc-pVTZ
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' 3233 3069 1.29      
2 A' 3140 2981 1.23      
3 A' 1509 1433 11.26      
4 A' 1438 1365 46.18      
5 A' 1426 1354 17.46      
6 A' 1148 1090 0.45      
7 A' 956 908 6.82      
8 A' 686 651 24.78      
9 A' 620 589 3.45      
10 A" 3260 3095 0.00      
11 A" 1783 1692 138.81      
12 A" 1499 1423 22.95      
13 A" 1125 1068 3.01      
14 A" 486 461 0.56      
15 A" 48i 46i 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 11129.6 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 10566.4 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=FULL/cc-pVTZ
ABC
0.40939 0.35835 0.19816

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.309 0.000
N2 -0.010 0.168 0.000
H3 1.038 -1.619 0.000
H4 -0.492 -1.647 0.898
H5 -0.492 -1.647 -0.898
O6 0.001 0.724 -1.090
O7 0.001 0.724 1.090

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.47731.08221.07891.07892.30702.3070
N21.47732.07112.08192.08191.22341.2234
H31.08222.07111.77421.77422.78422.7842
H41.07892.08191.77421.79693.13342.4295
H51.07892.08191.77421.79692.42953.1334
O62.30701.22342.78423.13342.42952.1791
O72.30701.22342.78422.42953.13342.1791

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 117.039 C1 N2 O7 117.039
N2 C1 H3 107.018 N2 C1 H4 108.050
N2 C1 H5 108.050 H3 C1 H4 110.369
H3 C1 H5 110.369 H4 C1 H5 112.762
O6 N2 O7 125.903
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability