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

using model chemistry: mPW1PW91/6-31G*

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 mPW1PW91/6-31G*
 hartrees
Energy at 0K-244.946422
Energy at 298.15K 
HF Energy-244.946422
Nuclear repulsion energy125.351564
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 mPW1PW91/6-31G*
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' 3228 3061 1.43      
2 A' 3126 2965 0.46      
3 A' 1510 1432 25.66      
4 A' 1488 1411 89.43      
5 A' 1432 1358 10.78      
6 A' 1154 1094 2.20      
7 A' 961 911 13.48      
8 A' 683 647 22.01      
9 A' 623 591 5.89      
10 A" 3260 3091 0.36      
11 A" 1745 1655 278.87      
12 A" 1494 1416 32.08      
13 A" 1128 1069 7.74      
14 A" 488 462 0.59      
15 A" 42 40 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 11179.3 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 10601.3 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 mPW1PW91/6-31G*
ABC
0.41208 0.35577 0.19811

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.314 0.000
N2 -0.012 0.173 0.000
H3 1.048 -1.620 0.000
H4 -0.493 -1.658 0.905
H5 -0.493 -1.658 -0.905
O6 0.001 0.726 -1.085
O7 0.001 0.726 1.085

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48691.09101.08711.08712.31042.3104
N21.48692.08312.09822.09821.21781.2178
H31.09102.08311.78771.78772.78862.7886
H41.08712.09821.78771.81023.14452.4412
H51.08712.09821.78771.81022.44123.1445
O62.31041.21782.78863.14452.44122.1700
O72.31041.21782.78862.44123.14452.1700

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 116.996 C1 N2 O7 116.996
N2 C1 H3 106.808 N2 C1 H4 108.204
N2 C1 H5 108.204 H3 C1 H4 110.330
H3 C1 H5 110.330 H4 C1 H5 112.740
O6 N2 O7 125.976
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.406      
2 N 0.463      
3 H 0.237      
4 H 0.229      
5 H 0.229      
6 O -0.376      
7 O -0.376      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.050 -3.508 0.000 3.509
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.181 -0.116 0.000
y -0.116 -21.655 0.000
z 0.000 0.000 -25.861
Traceless
 xyz
x 2.576 -0.116 0.000
y -0.116 1.866 0.000
z 0.000 0.000 -4.442
Polar
3z2-r2-8.885
x2-y20.474
xy-0.116
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.503 -0.028 0.000
y -0.028 3.769 0.000
z 0.000 0.000 4.709


<r2> (average value of r2) Å2
<r2> 63.482
(<r2>)1/2 7.968