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

using model chemistry: mPW1PW91/6-311G**

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 mPW1PW91/6-311G**
 hartrees
Energy at 0K-245.014707
Energy at 298.15K 
HF Energy-245.014707
Nuclear repulsion energy125.737232
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 mPW1PW91/6-311G**
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' 3201 3063 1.80      
2 A' 3102 2968 0.36      
3 A' 1488 1423 57.77      
4 A' 1471 1407 68.62      
5 A' 1410 1349 13.82      
6 A' 1141 1091 1.96      
7 A' 961 920 17.38      
8 A' 686 656 19.54      
9 A' 627 600 5.66      
10 A" 3233 3093 0.39      
11 A" 1718 1644 316.67      
12 A" 1466 1402 33.62      
13 A" 1116 1067 9.15      
14 A" 491 469 0.57      
15 A" 37 36 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 11073.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 10594.1 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 mPW1PW91/6-311G**
ABC
0.41636 0.35595 0.19912

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.315 0.000
N2 -0.012 0.175 0.000
H3 1.047 -1.618 0.000
H4 -0.492 -1.657 0.904
H5 -0.492 -1.657 -0.904
O6 0.001 0.725 -1.079
O7 0.001 0.725 1.079

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49031.08901.08521.08522.30762.3076
N21.49032.08262.09862.09861.21101.2110
H31.08902.08261.78551.78552.78352.7835
H41.08522.09861.78551.80903.13822.4381
H51.08522.09861.78551.80902.43813.1382
O62.30761.21102.78353.13822.43812.1580
O72.30761.21102.78352.43813.13822.1580

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 116.984 C1 N2 O7 116.984
N2 C1 H3 106.653 N2 C1 H4 108.109
N2 C1 H5 108.109 H3 C1 H4 110.406
H3 C1 H5 110.406 H4 C1 H5 112.908
O6 N2 O7 126.002
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.187      
2 N 0.252      
3 H 0.173      
4 H 0.159      
5 H 0.159      
6 O -0.278      
7 O -0.278      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.054 -3.543 0.000 3.543
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.278 -0.116 0.000
y -0.116 -21.903 0.000
z 0.000 0.000 -26.220
Traceless
 xyz
x 2.783 -0.116 0.000
y -0.116 1.847 0.000
z 0.000 0.000 -4.630
Polar
3z2-r2-9.259
x2-y20.624
xy-0.116
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.551 -0.028 0.000
y -0.028 3.938 0.000
z 0.000 0.000 4.904


<r2> (average value of r2) Å2
<r2> 63.397
(<r2>)1/2 7.962