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

using model chemistry: HF/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-243.759947
Energy at 298.15K 
HF Energy-243.759947
Nuclear repulsion energy127.894444
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/6-311+G(3df,2p)
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' 3314 3011 2.90 37.04 0.68 0.81
2 A' 3224 2929 2.60 118.72 0.01 0.02
3 A' 1672 1519 90.60 18.68 0.38 0.55
4 A' 1596 1451 13.66 4.19 0.70 0.82
5 A' 1550 1408 0.33 0.07 0.66 0.80
6 A' 1263 1147 1.44 0.31 0.50 0.67
7 A' 1049 953 4.08 13.08 0.06 0.11
8 A' 745 677 35.71 4.16 0.35 0.52
9 A' 700 636 13.35 1.32 0.45 0.62
10 A" 3348 3042 0.82 32.59 0.75 0.86
11 A" 1820 1653 688.46 2.12 0.75 0.86
12 A" 1586 1441 48.52 4.76 0.75 0.86
13 A" 1220 1108 35.41 1.20 0.75 0.86
14 A" 529 480 2.18 1.08 0.75 0.86
15 A" 26 24 0.07 0.35 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11820.4 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 10740.0 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 HF/6-311+G(3df,2p)
ABC
0.43606 0.36288 0.20564

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 -1.304 0.000
N2 -0.009 0.177 0.000
H3 1.038 -1.602 0.000
H4 -0.489 -1.639 0.897
H5 -0.489 -1.639 -0.897
O6 0.000 0.717 -1.053
O7 0.000 0.717 1.053

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48101.07931.07511.07512.27862.2786
N21.48102.06372.08102.08101.18331.1833
H31.07932.06371.77131.77132.74932.7493
H41.07512.08101.77131.79383.09652.4105
H51.07512.08101.77131.79382.41053.0965
O62.27861.18332.74933.09652.41052.1059
O72.27861.18332.74932.41053.09652.1059

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 117.132 C1 N2 O7 117.132
N2 C1 H3 106.363 N2 C1 H4 107.948
N2 C1 H5 107.948 H3 C1 H4 110.607
H3 C1 H5 110.607 H4 C1 H5 113.070
O6 N2 O7 125.720
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.259      
2 N 0.766      
3 H 0.148      
4 H 0.155      
5 H 0.155      
6 O -0.741      
7 O -0.741      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.007 -3.961 0.000 3.961
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.606 -0.068 0.000
y -0.068 -22.053 0.000
z 0.000 0.000 -26.710
Traceless
 xyz
x 2.776 -0.068 0.000
y -0.068 2.105 0.000
z 0.000 0.000 -4.880
Polar
3z2-r2-9.761
x2-y20.447
xy-0.068
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.159 -0.025 0.000
y -0.025 4.376 0.000
z 0.000 0.000 5.297


<r2> (average value of r2) Å2
<r2> 62.129
(<r2>)1/2 7.882