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

using model chemistry: HF/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 HF/cc-pVTZ
 hartrees
Energy at 0K-243.761555
Energy at 298.15K 
HF Energy-243.761555
Nuclear repulsion energy127.856821
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 HF/cc-pVTZ
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' 3315 3017 3.30 40.75 0.69 0.82
2 A' 3223 2934 2.16 115.68 0.02 0.04
3 A' 1670 1520 103.27 13.76 0.42 0.59
4 A' 1597 1454 12.89 5.78 0.72 0.84
5 A' 1548 1409 0.28 0.24 0.73 0.84
6 A' 1263 1149 2.03 0.29 0.67 0.80
7 A' 1048 954 5.72 11.10 0.08 0.15
8 A' 745 678 37.82 4.53 0.46 0.63
9 A' 698 635 14.32 1.61 0.56 0.72
10 A" 3349 3048 1.23 36.10 0.75 0.86
11 A" 1832 1668 653.73 1.27 0.75 0.86
12 A" 1585 1442 43.89 6.19 0.75 0.86
13 A" 1220 1111 33.97 1.69 0.75 0.86
14 A" 529 482 1.88 1.32 0.75 0.86
15 A" 16i 14i 0.05 0.40 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11803.3 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 10742.2 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 HF/cc-pVTZ
ABC
0.43541 0.36305 0.20555

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 -1.304 0.000
N2 -0.009 0.177 0.000
H3 1.037 -1.602 0.000
H4 -0.489 -1.638 0.897
H5 -0.489 -1.638 -0.897
O6 0.000 0.716 -1.054
O7 0.000 0.716 1.054

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48041.07931.07501.07502.27842.2784
N21.48042.06432.08062.08061.18401.1840
H31.07932.06431.77101.77102.75012.7501
H41.07502.08061.77101.79303.09662.4103
H51.07502.08061.77101.79302.41033.0966
O62.27841.18402.75013.09662.41032.1077
O72.27841.18402.75012.41033.09662.1077

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 117.110 C1 N2 O7 117.110
N2 C1 H3 106.447 N2 C1 H4 107.961
N2 C1 H5 107.961 H3 C1 H4 110.587
H3 C1 H5 110.587 H4 C1 H5 113.011
O6 N2 O7 125.762
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.146      
2 N 0.447      
3 H 0.124      
4 H 0.127      
5 H 0.127      
6 O -0.340      
7 O -0.340      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.017 -3.939 0.000 3.939
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.361 -0.068 0.000
y -0.068 -21.881 0.000
z 0.000 0.000 -26.670
Traceless
 xyz
x 2.915 -0.068 0.000
y -0.068 2.135 0.000
z 0.000 0.000 -5.049
Polar
3z2-r2-10.099
x2-y20.520
xy-0.068
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.777 -0.020 0.000
y -0.020 3.910 0.000
z 0.000 0.000 5.014


<r2> (average value of r2) Å2
<r2> 62.052
(<r2>)1/2 7.877