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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-245.013375
Energy at 298.15K 
HF Energy-245.013375
Nuclear repulsion energy124.505786
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' 3186 3061 2.03      
2 A' 3090 2969 0.68      
3 A' 1489 1431 11.16      
4 A' 1441 1385 80.68      
5 A' 1410 1355 25.27      
6 A' 1137 1093 1.66      
7 A' 928 892 13.92      
8 A' 662 636 20.43      
9 A' 607 584 5.82      
10 A" 3219 3093 0.70      
11 A" 1679 1613 247.82      
12 A" 1475 1417 32.54      
13 A" 1111 1068 8.73      
14 A" 478 459 0.62      
15 A" 45 43 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 10979.3 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 10548.9 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
0.40660 0.35057 0.19525

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 0.001 -1.325 0.000
N2 -0.012 0.174 0.000
H3 1.049 -1.633 0.000
H4 -0.494 -1.667 0.906
H5 -0.494 -1.667 -0.906
O6 0.001 0.731 -1.093
O7 0.001 0.731 1.093

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49871.09191.08791.08792.32852.3285
N21.49872.09512.10742.10741.22691.2269
H31.09192.09511.78971.78972.80732.8073
H41.08792.10741.78971.81243.16102.4557
H51.08792.10741.78971.81242.45573.1610
O62.32851.22692.80733.16102.45572.1856
O72.32851.22692.80732.45573.16102.1856

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 117.020 C1 N2 O7 117.020
N2 C1 H3 106.895 N2 C1 H4 108.070
N2 C1 H5 108.070 H3 C1 H4 110.380
H3 C1 H5 110.380 H4 C1 H5 112.815
O6 N2 O7 125.928
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 -0.198      
2 N 0.441      
3 H 0.172      
4 H 0.162      
5 H 0.162      
6 O -0.370      
7 O -0.370      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.050 -3.484 0.000 3.485
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.254 -0.120 0.000
y -0.120 -21.716 0.000
z 0.000 0.000 -25.955
Traceless
 xyz
x 2.581 -0.120 0.000
y -0.120 1.889 0.000
z 0.000 0.000 -4.470
Polar
3z2-r2-8.941
x2-y20.462
xy-0.120
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.540 -0.025 0.000
y -0.025 3.877 0.000
z 0.000 0.000 4.763


<r2> (average value of r2) Å2
<r2> 64.210
(<r2>)1/2 8.013