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

using model chemistry: B3LYP/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 B3LYP/6-31G
 hartrees
Energy at 0K-244.918219
Energy at 298.15K 
HF Energy-244.918219
Nuclear repulsion energy122.485536
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 B3LYP/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' 3203 3081 1.81      
2 A' 3101 2983 0.24      
3 A' 1515 1457 17.66      
4 A' 1454 1399 0.35      
5 A' 1319 1269 86.49      
6 A' 1159 1115 1.18      
7 A' 883 849 7.98      
8 A' 642 618 21.33      
9 A' 587 565 4.25      
10 A" 3238 3115 0.18      
11 A" 1546 1487 64.49      
12 A" 1487 1431 137.25      
13 A" 1123 1080 15.55      
14 A" 471 454 0.49      
15 A" 41 40 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 10884.6 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 10470.9 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 B3LYP/6-31G
ABC
0.38954 0.34347 0.18912

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.002 -1.337 0.000
N2 -0.012 0.165 0.000
H3 1.047 -1.654 0.000
H4 -0.499 -1.674 0.905
H5 -0.499 -1.674 -0.905
O6 0.002 0.742 -1.118
O7 0.002 0.742 1.118

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.50211.09221.08761.08762.36142.3614
N21.50212.10462.10632.10631.25891.2589
H31.09222.10461.79161.79162.84352.8435
H41.08762.10631.79161.80953.19112.4769
H51.08762.10631.79161.80952.47693.1911
O62.36141.25892.84353.19112.47692.2369
O72.36141.25892.84352.47693.19112.2369

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 117.303 C1 N2 O7 117.303
N2 C1 H3 107.382 N2 C1 H4 107.773
N2 C1 H5 107.773 H3 C1 H4 110.554
H3 C1 H5 110.554 H4 C1 H5 112.587
O6 N2 O7 125.361
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.237      
2 N 0.194      
3 H 0.211      
4 H 0.200      
5 H 0.200      
6 O -0.284      
7 O -0.284      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.064 -3.848 0.000 3.848
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.546 -0.136 0.000
y -0.136 -22.072 0.000
z 0.000 0.000 -26.961
Traceless
 xyz
x 2.971 -0.136 0.000
y -0.136 2.182 0.000
z 0.000 0.000 -5.152
Polar
3z2-r2-10.304
x2-y20.526
xy-0.136
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.256 -0.033 0.000
y -0.033 3.662 0.000
z 0.000 0.000 4.926


<r2> (average value of r2) Å2
<r2> 66.019
(<r2>)1/2 8.125