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

using model chemistry: PBEPBEultrafine/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-244.856674
Energy at 298.15K 
HF Energy-244.856674
Nuclear repulsion energy124.131814
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/cc-pVTZ
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' 3100 3079 2.24      
2 A' 3009 2988 0.56      
3 A' 1423 1413 11.52      
4 A' 1365 1355 51.98      
5 A' 1333 1324 66.08      
6 A' 1085 1078 1.26      
7 A' 892 886 21.47      
8 A' 639 634 10.85      
9 A' 593 589 3.43      
10 A" 3131 3109 0.63      
11 A" 1575 1564 249.83      
12 A" 1409 1400 38.80      
13 A" 1062 1055 7.46      
14 A" 464 461 0.58      
15 A" 6i 6i 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 10537.0 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 10464.3 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 PBEPBEultrafine/cc-pVTZ
ABC
0.40433 0.34820 0.19402

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 -1.330 0.000
N2 -0.010 0.176 0.000
H3 1.053 -1.637 0.000
H4 -0.495 -1.675 0.911
H5 -0.495 -1.675 -0.911
O6 0.000 0.733 -1.096
O7 0.000 0.733 1.096

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.50571.09631.09251.09252.33592.3359
N21.50572.10132.11882.11881.22931.2293
H31.09632.10131.79581.79582.81532.8153
H41.09252.11881.79581.82203.17322.4650
H51.09252.11881.79581.82202.46503.1732
O62.33591.22932.81533.17322.46502.1915
O72.33591.22932.81532.46503.17322.1915

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 116.950 C1 N2 O7 116.950
N2 C1 H3 106.654 N2 C1 H4 108.218
N2 C1 H5 108.218 H3 C1 H4 110.258
H3 C1 H5 110.258 H4 C1 H5 112.992
O6 N2 O7 126.082
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.181      
2 N 0.298      
3 H 0.128      
4 H 0.119      
5 H 0.119      
6 O -0.242      
7 O -0.242      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.043 -3.283 0.000 3.284
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.549 -0.096 0.000
y -0.096 -22.148 0.000
z 0.000 0.000 -26.200
Traceless
 xyz
x 2.625 -0.096 0.000
y -0.096 1.727 0.000
z 0.000 0.000 -4.352
Polar
3z2-r2-8.703
x2-y20.598
xy-0.096
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.030 -0.026 0.000
y -0.026 4.701 0.000
z 0.000 0.000 5.302


<r2> (average value of r2) Å2
<r2> 64.736
(<r2>)1/2 8.046