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

using model chemistry: B3LYP/CEP-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/CEP-31G
 hartrees
Energy at 0K-49.134251
Energy at 298.15K 
HF Energy-49.134251
Nuclear repulsion energy67.561676
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/CEP-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' 3199 3098 14.43      
2 A' 3088 2990 3.28      
3 A' 1483 1436 19.24      
4 A' 1434 1389 0.56      
5 A' 1307 1265 65.09      
6 A' 1139 1103 1.70      
7 A' 865 838 3.25      
8 A' 606 587 27.29      
9 A' 554 536 2.94      
10 A" 3227 3125 4.47      
11 A" 1512 1464 70.96      
12 A" 1458 1412 147.86      
13 A" 1106 1071 15.67      
14 A" 449 435 0.56      
15 A" 32i 31i 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 10697.5 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 10359.5 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/CEP-31G
ABC
0.37411 0.33182 0.18207

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.362 0.000
N2 -0.010 0.162 0.000
H3 1.055 -1.676 0.000
H4 -0.504 -1.697 0.914
H5 -0.504 -1.697 -0.914
O6 0.001 0.757 -1.142
O7 0.001 0.757 1.142

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.52401.10011.09691.09692.40702.4070
N21.52402.12452.12982.12981.28791.2879
H31.10012.12451.80801.80802.88702.8870
H41.09692.12981.80801.82793.24102.5156
H51.09692.12981.80801.82792.51563.2410
O62.40701.28792.88703.24102.51562.2846
O72.40701.28792.88702.51563.24102.2846

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 117.496 C1 N2 O7 117.496
N2 C1 H3 107.000 N2 C1 H4 107.588
N2 C1 H5 107.588 H3 C1 H4 110.759
H3 C1 H5 110.759 H4 C1 H5 112.867
O6 N2 O7 124.988
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.456      
2 N 0.036      
3 H 0.222      
4 H 0.227      
5 H 0.227      
6 O -0.128      
7 O -0.128      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.034 -4.221 0.000 4.221
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.600 -0.088 0.000
y -0.088 -22.059 0.000
z 0.000 0.000 -27.258
Traceless
 xyz
x 3.058 -0.088 0.000
y -0.088 2.371 0.000
z 0.000 0.000 -5.428
Polar
3z2-r2-10.857
x2-y20.458
xy-0.088
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.243 -0.076 0.000
y -0.076 3.796 0.000
z 0.000 0.000 5.376


<r2> (average value of r2) Å2
<r2> 56.707
(<r2>)1/2 7.530