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

using model chemistry: PBEPBE/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 PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-244.778484
Energy at 298.15K 
HF Energy-244.778484
Nuclear repulsion energy123.769314
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 PBEPBE/cc-pVDZ
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' 3118 3100 1.42      
2 A' 3011 2993 0.57      
3 A' 1396 1388 20.07      
4 A' 1368 1360 101.06      
5 A' 1314 1306 20.12      
6 A' 1067 1060 1.82      
7 A' 896 891 25.67      
8 A' 642 638 11.56      
9 A' 590 586 3.73      
10 A" 3149 3130 0.26      
11 A" 1616 1606 215.34      
12 A" 1380 1372 29.64      
13 A" 1044 1037 5.23      
14 A" 463 460 0.29      
15 A" 29 28 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 10540.7 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 10479.5 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 PBEPBE/cc-pVDZ
ABC
0.40090 0.34742 0.19312

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.330 0.000
N2 -0.011 0.178 0.000
H3 1.063 -1.640 0.000
H4 -0.498 -1.679 0.919
H5 -0.498 -1.679 -0.919
O6 0.001 0.733 -1.100
O7 0.001 0.733 1.100

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.50871.10631.10251.10252.33862.3386
N21.50872.11182.12902.12901.23221.2322
H31.10632.11181.81161.81162.82332.8233
H41.10252.12901.81161.83883.18542.4702
H51.10252.12901.81161.83882.47023.1854
O62.33861.23222.82333.18542.47022.2000
O72.33861.23222.82332.47023.18542.2000

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 116.770 C1 N2 O7 116.770
N2 C1 H3 106.706 N2 C1 H4 108.234
N2 C1 H5 108.234 H3 C1 H4 110.209
H3 C1 H5 110.209 H4 C1 H5 113.011
O6 N2 O7 126.436
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.043      
2 N 0.182      
3 H 0.088      
4 H 0.068      
5 H 0.068      
6 O -0.225      
7 O -0.225      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.072 -3.151 0.000 3.152
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.226 -0.141 0.000
y -0.141 -21.919 0.000
z 0.000 0.000 -25.764
Traceless
 xyz
x 2.616 -0.141 0.000
y -0.141 1.576 0.000
z 0.000 0.000 -4.192
Polar
3z2-r2-8.384
x2-y20.693
xy-0.141
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.532 -0.008 0.000
y -0.008 4.156 0.000
z 0.000 0.000 4.830


<r2> (average value of r2) Å2
<r2> 64.800
(<r2>)1/2 8.050