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

using model chemistry: mPW1PW91/Def2TZVPP

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 mPW1PW91/Def2TZVPP
 hartrees
Energy at 0K-245.055170
Energy at 298.15K 
HF Energy-245.055170
Nuclear repulsion energy125.953584
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 mPW1PW91/Def2TZVPP
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' 3198 3198 1.56      
2 A' 3102 3102 0.38      
3 A' 1485 1485 48.45      
4 A' 1467 1467 62.06      
5 A' 1410 1410 13.02      
6 A' 1142 1142 1.63      
7 A' 959 959 14.18      
8 A' 683 683 19.11      
9 A' 631 631 5.18      
10 A" 3230 3230 0.12      
11 A" 1693 1693 353.52      
12 A" 1464 1464 36.48      
13 A" 1115 1115 9.84      
14 A" 487 487 0.85      
15 A" 26 26 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 11045.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11045.5 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 mPW1PW91/Def2TZVPP
ABC
0.41812 0.35704 0.19982

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 -1.313 0.000
N2 -0.010 0.174 0.000
H3 1.044 -1.616 0.000
H4 -0.490 -1.655 0.904
H5 -0.490 -1.655 -0.904
O6 0.000 0.724 -1.077
O7 0.000 0.724 1.077

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48621.08751.08361.08362.30372.3037
N21.48622.07732.09552.09551.20931.2093
H31.08752.07731.78141.78142.77972.7797
H41.08362.09551.78141.80703.13392.4352
H51.08362.09551.78141.80702.43523.1339
O62.30371.20932.77973.13392.43522.1535
O72.30371.20932.77972.43523.13392.1535

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 117.070 C1 N2 O7 117.070
N2 C1 H3 106.598 N2 C1 H4 108.235
N2 C1 H5 108.235 H3 C1 H4 110.272
H3 C1 H5 110.272 H4 C1 H5 112.983
O6 N2 O7 125.843
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.185      
2 N 0.403      
3 H 0.126      
4 H 0.131      
5 H 0.131      
6 O -0.303      
7 O -0.303      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.031 -3.546 0.000 3.546
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.419 -0.085 0.000
y -0.085 -22.026 0.000
z 0.000 0.000 -26.291
Traceless
 xyz
x 2.739 -0.085 0.000
y -0.085 1.829 0.000
z 0.000 0.000 -4.568
Polar
3z2-r2-9.136
x2-y20.607
xy-0.085
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.038 -0.037 0.000
y -0.037 4.506 0.000
z 0.000 0.000 5.319


<r2> (average value of r2) Å2
<r2> 63.299
(<r2>)1/2 7.956