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

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-244.781080
Energy at 298.15K-244.785761
HF Energy-244.552420
Nuclear repulsion energy124.217639
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 B2PLYP/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' 3233 3068 1.87      
2 A' 3133 2974 1.21      
3 A' 1522 1445 10.42      
4 A' 1449 1376 0.62      
5 A' 1416 1345 80.78      
6 A' 1160 1101 0.80      
7 A' 928 881 7.62      
8 A' 664 630 24.54      
9 A' 602 571 5.39      
10 A" 3261 3096 0.56      
11 A" 1666 1582 180.17      
12 A" 1512 1435 35.66      
13 A" 1133 1075 8.18      
14 A" 480 456 0.53      
15 A" 13 12 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 11086.2 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 10523.0 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 B2PLYP/6-31G*
ABC
0.40266 0.35119 0.19452

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.019 -1.318 0.000
N2 -0.085 0.179 0.000
H3 1.080 -1.571 0.000
H4 -0.455 -1.689 0.904
H5 -0.455 -1.689 -0.904
O6 0.019 0.725 -1.092
O7 0.019 0.725 1.092

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49981.09061.08651.08652.31642.3164
N21.49982.10182.10772.10771.22551.2255
H31.09062.10181.78561.78562.75482.7548
H41.08652.10771.78561.80853.16832.4677
H51.08652.10771.78561.80852.46773.1683
O62.31641.22552.75483.16832.46772.1836
O72.31641.22552.75482.46773.16832.1836

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 116.050 C1 N2 O7 116.050
N2 C1 H3 107.409 N2 C1 H4 108.098
N2 C1 H5 108.098 H3 C1 H4 110.198
H3 C1 H5 110.198 H4 C1 H5 112.655
O6 N2 O7 125.969
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.344      
2 N 0.421      
3 H 0.217      
4 H 0.210      
5 H 0.210      
6 O -0.357      
7 O -0.357      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.042 -3.470 0.000 3.470
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.394 -0.106 0.000
y -0.106 -21.900 0.000
z 0.000 0.000 -26.055
Traceless
 xyz
x 2.584 -0.106 0.000
y -0.106 1.824 0.000
z 0.000 0.000 -4.408
Polar
3z2-r2-8.817
x2-y20.507
xy-0.106
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.498 -0.024 0.000
y -0.024 3.782 0.000
z 0.000 0.000 4.790


<r2> (average value of r2) Å2
<r2> 64.438
(<r2>)1/2 8.027