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

using model chemistry: TPSSh/6-31G(2df,p)

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 TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-245.039089
Energy at 298.15K-245.043775
HF Energy-245.039089
Nuclear repulsion energy124.633434
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 TPSSh/6-31G(2df,p)
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' 3180 3069 2.59      
2 A' 3080 2972 1.33      
3 A' 1485 1433 9.00      
4 A' 1424 1374 59.40      
5 A' 1398 1349 39.33      
6 A' 1133 1094 0.82      
7 A' 916 884 13.68      
8 A' 651 629 17.19      
9 A' 604 583 4.55      
10 A" 3210 3097 1.32      
11 A" 1656 1598 241.79      
12 A" 1475 1423 33.82      
13 A" 1104 1066 9.77      
14 A" 459 443 0.46      
15 A" 26 25 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 10900.3 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 10518.8 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 TPSSh/6-31G(2df,p)
ABC
0.40744 0.35094 0.19556

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.020 -1.318 0.000
N2 -0.089 0.181 0.000
H3 1.084 -1.564 0.000
H4 -0.451 -1.691 0.906
H5 -0.451 -1.691 -0.906
O6 0.020 0.724 -1.085
O7 0.020 0.724 1.085

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.50341.09161.08761.08762.31252.3125
N21.50342.10332.11152.11151.21831.2183
H31.09162.10331.78701.78702.74692.7469
H41.08762.11151.78701.81283.16562.4671
H51.08762.11151.78701.81282.46713.1656
O62.31251.21832.74693.16562.46712.1705
O72.31251.21832.74692.46713.16562.1705

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 115.954 C1 N2 O7 115.954
N2 C1 H3 107.225 N2 C1 H4 108.087
N2 C1 H5 108.087 H3 C1 H4 110.173
H3 C1 H5 110.173 H4 C1 H5 112.890
O6 N2 O7 125.950
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.358      
2 N 0.602      
3 H 0.196      
4 H 0.192      
5 H 0.192      
6 O -0.412      
7 O -0.412      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.039 -3.307 0.000 3.308
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.873 -0.025 0.000
y -0.025 4.261 0.000
z 0.000 0.000 4.848


<r2> (average value of r2) Å2
<r2> 63.985
(<r2>)1/2 7.999