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

using model chemistry: PBE1PBE/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-244.767044
Energy at 298.15K 
HF Energy-244.767044
Nuclear repulsion energy125.586602
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/cc-pVDZ
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 3091 0.92      
2 A' 3102 2983 0.26      
3 A' 1495 1437 113.22      
4 A' 1443 1388 20.40      
5 A' 1378 1325 7.33      
6 A' 1121 1078 2.73      
7 A' 966 929 18.23      
8 A' 689 662 21.05      
9 A' 626 602 5.37      
10 A" 3247 3122 0.00      
11 A" 1749 1681 289.67      
12 A" 1433 1377 30.38      
13 A" 1096 1053 6.51      
14 A" 488 469 0.47      
15 A" 26 25 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 11035.8 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 10610.9 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/cc-pVDZ
ABC
0.41429 0.35661 0.19895

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.312 0.000
N2 -0.011 0.175 0.000
H3 1.055 -1.620 0.000
H4 -0.495 -1.658 0.912
H5 -0.495 -1.658 -0.912
O6 0.001 0.724 -1.081
O7 0.001 0.724 1.081

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48761.09791.09411.09412.30552.3055
N21.48762.08792.10422.10421.21251.2125
H31.09792.08791.79821.79822.78822.7882
H41.09412.10421.79821.82443.14542.4389
H51.09412.10421.79821.82442.43893.1454
O62.30551.21252.78823.14542.43892.1625
O72.30551.21252.78822.43893.14542.1625

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 116.896 C1 N2 O7 116.896
N2 C1 H3 106.736 N2 C1 H4 108.213
N2 C1 H5 108.213 H3 C1 H4 110.235
H3 C1 H5 110.235 H4 C1 H5 112.974
O6 N2 O7 126.182
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.033      
2 N 0.218      
3 H 0.100      
4 H 0.082      
5 H 0.082      
6 O -0.258      
7 O -0.258      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.064 -3.405 0.000 3.406
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.123 -0.130 0.000
y -0.130 -21.799 0.000
z 0.000 0.000 -25.920
Traceless
 xyz
x 2.736 -0.130 0.000
y -0.130 1.723 0.000
z 0.000 0.000 -4.459
Polar
3z2-r2-8.918
x2-y20.675
xy-0.130
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.452 -0.012 0.000
y -0.012 3.848 0.000
z 0.000 0.000 4.714


<r2> (average value of r2) Å2
<r2> 63.360
(<r2>)1/2 7.960