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

using model chemistry: B1B95/6-31+G**

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 B1B95/6-31+G**
 hartrees
Energy at 0K-244.937063
Energy at 298.15K 
HF Energy-244.937063
Nuclear repulsion energy125.394694
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 B1B95/6-31+G**
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' 3222 3082 1.36      
2 A' 3117 2982 0.57      
3 A' 1493 1428 60.33      
4 A' 1474 1410 43.84      
5 A' 1414 1352 12.24      
6 A' 1140 1091 1.35      
7 A' 954 913 10.23      
8 A' 676 646 20.47      
9 A' 619 592 4.86      
10 A" 3254 3113 0.00      
11 A" 1711 1637 368.82      
12 A" 1469 1405 37.40      
13 A" 1116 1068 10.01      
14 A" 482 461 0.78      
15 A" 37 36 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 11088.5 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 10607.3 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 B1B95/6-31+G**
ABC
0.41328 0.35525 0.19819

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.316 0.000
N2 -0.011 0.171 0.000
H3 1.047 -1.619 0.000
H4 -0.492 -1.656 0.905
H5 -0.492 -1.656 -0.905
O6 0.001 0.727 -1.083
O7 0.001 0.727 1.083

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48651.08901.08531.08532.31212.3121
N21.48652.07822.09502.09501.21781.2178
H31.08902.07821.78551.78552.78732.7873
H41.08532.09501.78551.81013.14262.4400
H51.08532.09501.78551.81012.44003.1426
O62.31211.21782.78733.14262.44002.1667
O72.31211.21782.78732.44003.14262.1667

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 117.167 C1 N2 O7 117.167
N2 C1 H3 106.573 N2 C1 H4 108.085
N2 C1 H5 108.085 H3 C1 H4 110.410
H3 C1 H5 110.410 H4 C1 H5 113.014
O6 N2 O7 125.645
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.385      
2 N 0.099      
3 H 0.205      
4 H 0.202      
5 H 0.202      
6 O -0.161      
7 O -0.161      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.030 -3.780 0.000 3.780
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.668 -0.097 0.000
y -0.097 -22.285 0.000
z 0.000 0.000 -26.639
Traceless
 xyz
x 2.794 -0.097 0.000
y -0.097 1.869 0.000
z 0.000 0.000 -4.663
Polar
3z2-r2-9.326
x2-y20.617
xy-0.097
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.018 -0.050 0.000
y -0.050 4.502 0.000
z 0.000 0.000 5.479


<r2> (average value of r2) Å2
<r2> 63.844
(<r2>)1/2 7.990