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

using model chemistry: PBE1PBE/3-21G

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 PBE1PBE/3-21G
 hartrees
Energy at 0K-243.358239
Energy at 298.15K 
HF Energy-243.358239
Nuclear repulsion energy122.010393
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 PBE1PBE/3-21G
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' 3215 3088 0.86      
2 A' 3115 2992 0.00      
3 A' 1533 1473 17.93      
4 A' 1425 1369 4.02      
5 A' 1252 1203 89.84      
6 A' 1137 1092 1.95      
7 A' 859 825 5.17      
8 A' 620 595 21.11      
9 A' 554 532 4.41      
10 A" 3252 3123 0.00      
11 A" 1540 1479 0.41      
12 A" 1440 1383 135.35      
13 A" 1090 1047 12.77      
14 A" 437 420 0.33      
15 A" 32 31 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 10751.0 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 10325.3 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 PBE1PBE/3-21G
ABC
0.37935 0.34749 0.18791

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.003 -1.333 0.000
N2 -0.015 0.169 0.000
H3 1.051 -1.640 0.000
H4 -0.500 -1.660 0.907
H5 -0.500 -1.660 -0.907
O6 0.003 0.736 -1.134
O7 0.003 0.736 1.134

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.50151.09241.08751.08752.35892.3589
N21.50152.09952.09822.09821.26821.2682
H31.09242.09951.79651.79652.83352.8335
H41.08752.09821.79651.81483.18752.4582
H51.08752.09821.79651.81482.45823.1875
O62.35891.26822.83353.18752.45822.2686
O72.35891.26822.83352.45823.18752.2686

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 116.539 C1 N2 O7 116.539
N2 C1 H3 107.013 N2 C1 H4 107.188
N2 C1 H5 107.188 H3 C1 H4 111.004
H3 C1 H5 111.004 H4 C1 H5 113.104
O6 N2 O7 126.868
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.454      
2 N 0.236      
3 H 0.284      
4 H 0.272      
5 H 0.272      
6 O -0.305      
7 O -0.305      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.071 -3.567 0.000 3.567
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.301 -0.169 0.000
y -0.169 -21.658 0.000
z 0.000 0.000 -26.134
Traceless
 xyz
x 2.595 -0.169 0.000
y -0.169 2.060 0.000
z 0.000 0.000 -4.655
Polar
3z2-r2-9.310
x2-y20.357
xy-0.169
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.033 -0.015 0.000
y -0.015 3.326 0.000
z 0.000 0.000 4.514


<r2> (average value of r2) Å2
<r2> 65.938
(<r2>)1/2 8.120