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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-245.010492
Energy at 298.15K 
HF Energy-245.010492
Nuclear repulsion energy125.756804
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' 3209 3062 2.86      
2 A' 3110 2968 0.85      
3 A' 1500 1431 23.79      
4 A' 1477 1409 99.29      
5 A' 1424 1359 15.84      
6 A' 1153 1100 1.90      
7 A' 963 919 16.64      
8 A' 688 656 19.44      
9 A' 628 599 5.98      
10 A" 3241 3093 1.27      
11 A" 1720 1642 312.83      
12 A" 1484 1416 37.42      
13 A" 1128 1077 9.66      
14 A" 493 470 0.56      
15 A" 35 34 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 11125.3 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 10618.0 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
0.41630 0.35625 0.19920

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 -1.314 0.000
N2 -0.013 0.175 0.000
H3 1.047 -1.617 0.000
H4 -0.492 -1.658 0.903
H5 -0.492 -1.658 -0.903
O6 0.001 0.724 -1.079
O7 0.001 0.724 1.079

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48931.08871.08481.08482.30662.3066
N21.48932.08212.09882.09881.21101.2110
H31.08872.08211.78441.78442.78252.7825
H41.08482.09881.78441.80673.13812.4389
H51.08482.09881.78441.80672.43893.1381
O62.30661.21102.78253.13812.43892.1584
O72.30661.21102.78252.43893.13812.1584

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 116.967 C1 N2 O7 116.967
N2 C1 H3 106.703 N2 C1 H4 108.213
N2 C1 H5 108.213 H3 C1 H4 110.362
H3 C1 H5 110.362 H4 C1 H5 112.757
O6 N2 O7 126.033
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.525      
2 N 0.281      
3 H 0.274      
4 H 0.262      
5 H 0.262      
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
  0.052 -3.543 0.000 3.543
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.294 -0.111 0.000
y -0.111 -21.951 0.000
z 0.000 0.000 -26.245
Traceless
 xyz
x 2.804 -0.111 0.000
y -0.111 1.819 0.000
z 0.000 0.000 -4.622
Polar
3z2-r2-9.245
x2-y20.656
xy-0.111
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.516 -0.028 0.000
y -0.028 3.871 0.000
z 0.000 0.000 4.880


<r2> (average value of r2) Å2
<r2> 63.399
(<r2>)1/2 7.962