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

using model chemistry: HF/6-311G*

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 HF/6-311G*
 hartrees
Energy at 0K-243.724546
Energy at 298.15K 
HF Energy-243.724546
Nuclear repulsion energy127.778664
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 HF/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3347 3027 5.20 43.22 0.70 0.82
2 A' 3252 2941 2.82 99.11 0.03 0.06
3 A' 1680 1520 113.69 12.56 0.41 0.58
4 A' 1614 1459 12.66 9.52 0.74 0.85
5 A' 1563 1414 0.33 0.79 0.62 0.77
6 A' 1272 1151 1.93 0.70 0.75 0.86
7 A' 1057 956 6.43 10.13 0.10 0.19
8 A' 749 678 40.83 5.82 0.47 0.64
9 A' 694 628 15.73 2.09 0.67 0.80
10 A" 3381 3058 2.62 38.13 0.75 0.86
11 A" 1859 1682 638.83 0.78 0.75 0.86
12 A" 1601 1448 45.12 8.84 0.75 0.86
13 A" 1235 1117 36.14 3.18 0.75 0.86
14 A" 535 483 1.44 1.20 0.75 0.86
15 A" 28 26 0.02 0.63 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11933.5 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 10792.7 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 HF/6-311G*
ABC
0.43451 0.36292 0.20533

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.304 0.000
N2 -0.012 0.177 0.000
H3 1.039 -1.601 0.000
H4 -0.489 -1.640 0.896
H5 -0.489 -1.640 -0.896
O6 0.001 0.716 -1.055
O7 0.001 0.716 1.055

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48101.07991.07571.07572.27902.2790
N21.48102.06602.08172.08171.18491.1849
H31.07992.06601.77251.77252.75012.7501
H41.07572.08171.77251.79273.09852.4121
H51.07572.08171.77251.79272.41213.0985
O62.27901.18492.75013.09852.41212.1100
O72.27901.18492.75012.41213.09852.1100

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 117.062 C1 N2 O7 117.062
N2 C1 H3 106.502 N2 C1 H4 107.970
N2 C1 H5 107.970 H3 C1 H4 110.624
H3 C1 H5 110.624 H4 C1 H5 112.874
O6 N2 O7 125.844
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.477      
2 N 0.434      
3 H 0.269      
4 H 0.262      
5 H 0.262      
6 O -0.374      
7 O -0.374      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.031 -4.048 0.000 4.049
CHELPG        
AIM        
ESP -0.243 -4.042 0.000 4.050


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.352 -0.087 0.000
y -0.087 -21.993 0.000
z 0.000 0.000 -26.902
Traceless
 xyz
x 3.096 -0.087 0.000
y -0.087 2.134 0.000
z 0.000 0.000 -5.230
Polar
3z2-r2-10.460
x2-y20.641
xy-0.087
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.386 -0.025 0.000
y -0.025 3.434 0.000
z 0.000 0.000 4.815


<r2> (average value of r2) Å2
<r2> 62.173
(<r2>)1/2 7.885