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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/3-21G
 hartrees
Energy at 0K-243.378805
Energy at 298.15K 
HF Energy-243.378805
Nuclear repulsion energy120.098783
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 PBEPBEultrafine/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' 3125 3096 2.10      
2 A' 3027 2999 0.18      
3 A' 1488 1474 15.92      
4 A' 1361 1348 2.78      
5 A' 1157 1146 98.00      
6 A' 1081 1071 1.61      
7 A' 802 795 9.24      
8 A' 578 573 11.92      
9 A' 518 514 2.82      
10 A" 3159 3130 0.51      
11 A" 1489 1475 1.48      
12 A" 1349 1336 101.84      
13 A" 1033 1024 9.85      
14 A" 413 409 0.18      
15 A" 20i 20i 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 10278.9 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 10185.4 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 PBEPBEultrafine/3-21G
ABC
0.36522 0.33849 0.18191

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.003 -1.352 0.000
N2 -0.016 0.173 0.000
H3 1.059 -1.659 0.000
H4 -0.503 -1.680 0.915
H5 -0.503 -1.680 -0.915
O6 0.003 0.745 -1.157
O7 0.003 0.745 1.157

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.52471.10061.09591.09592.39482.3948
N21.52472.12412.12342.12341.29091.2909
H31.10062.12411.81091.81092.86982.8698
H41.09592.12341.81091.83003.22962.4891
H51.09592.12341.81091.83002.48913.2296
O62.39481.29092.86983.22962.48912.3140
O72.39481.29092.86982.48913.22962.3140

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 116.294 C1 N2 O7 116.294
N2 C1 H3 106.906 N2 C1 H4 107.109
N2 C1 H5 107.109 H3 C1 H4 111.066
H3 C1 H5 111.066 H4 C1 H5 113.220
O6 N2 O7 127.357
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.445      
2 N 0.206      
3 H 0.267      
4 H 0.254      
5 H 0.254      
6 O -0.269      
7 O -0.269      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.078 -3.268 0.000 3.268
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.341 -0.178 0.000
y -0.178 -21.683 0.000
z 0.000 0.000 -25.750
Traceless
 xyz
x 2.376 -0.178 0.000
y -0.178 1.863 0.000
z 0.000 0.000 -4.238
Polar
3z2-r2-8.477
x2-y20.342
xy-0.178
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.092 -0.009 0.000
y -0.009 3.585 0.000
z 0.000 0.000 4.577


<r2> (average value of r2) Å2
<r2> 67.494
(<r2>)1/2 8.215