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

using model chemistry: B2PLYP/6-31G

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 B2PLYP/6-31G
 hartrees
Energy at 0K-244.620786
Energy at 298.15K 
HF Energy-244.443260
Nuclear repulsion energy121.702604
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 B2PLYP/6-31G
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' 3225 3225 1.91      
2 A' 3120 3120 1.02      
3 A' 1536 1536 16.36      
4 A' 1473 1473 1.22      
5 A' 1284 1284 55.81      
6 A' 1174 1174 0.27      
7 A' 866 866 2.75      
8 A' 635 635 25.49      
9 A' 574 574 3.40      
10 A" 3255 3255 0.16      
11 A" 1548 1548 0.69      
12 A" 1476 1476 120.98      
13 A" 1135 1135 11.69      
14 A" 469 469 0.41      
15 A" 38 38 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 10903.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10903.8 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 B2PLYP/6-31G
ABC
0.38201 0.34169 0.18680

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.002 -1.341 0.000
N2 -0.013 0.160 0.000
H3 1.045 -1.660 0.000
H4 -0.502 -1.674 0.904
H5 -0.502 -1.674 -0.904
O6 0.002 0.746 -1.130
O7 0.002 0.746 1.130

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.50101.09081.08701.08702.37262.3726
N21.50102.10542.10232.10231.27291.2729
H31.09082.10541.79171.79172.85502.8550
H41.08702.10231.79171.80733.20062.4816
H51.08702.10231.79171.80732.48163.2006
O62.37261.27292.85503.20062.48162.2607
O72.37261.27292.85502.48163.20062.2607

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 117.358 C1 N2 O7 117.358
N2 C1 H3 107.590 N2 C1 H4 107.569
N2 C1 H5 107.569 H3 C1 H4 110.709
H3 C1 H5 110.709 H4 C1 H5 112.472
O6 N2 O7 125.246
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.235      
2 N 0.180      
3 H 0.211      
4 H 0.201      
5 H 0.201      
6 O -0.279      
7 O -0.279      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.054 -3.812 0.000 3.812
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.770 -0.121 0.000
y -0.121 -22.287 0.000
z 0.000 0.000 -27.084
Traceless
 xyz
x 2.916 -0.121 0.000
y -0.121 2.140 0.000
z 0.000 0.000 -5.056
Polar
3z2-r2-10.112
x2-y20.517
xy-0.121
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.256 -0.030 0.000
y -0.030 3.634 0.000
z 0.000 0.000 5.008


<r2> (average value of r2) Å2
<r2> 66.698
(<r2>)1/2 8.167