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

using model chemistry: B3LYP/3-21G

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 B3LYP/3-21G
 hartrees
Energy at 0K-243.624702
Energy at 298.15K 
HF Energy-243.624702
Nuclear repulsion energy121.153023
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 B3LYP/3-21G
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' 3192 3080 1.79      
2 A' 3101 2992 0.17      
3 A' 1537 1483 15.23      
4 A' 1422 1372 2.12      
5 A' 1208 1165 82.21      
6 A' 1129 1090 1.05      
7 A' 827 798 5.49      
8 A' 599 578 19.10      
9 A' 537 518 4.38      
10 A" 3229 3115 0.26      
11 A" 1537 1483 1.30      
12 A" 1396 1347 115.61      
13 A" 1078 1040 16.83      
14 A" 428 413 0.28      
15 A" 34 33 0.25      

Unscaled Zero Point Vibrational Energy (zpe) 10626.7 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 10253.7 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 B3LYP/3-21G
ABC
0.37393 0.34213 0.18501

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.002 -1.345 0.000
N2 -0.015 0.171 0.000
H3 1.050 -1.652 0.000
H4 -0.500 -1.669 0.907
H5 -0.500 -1.669 -0.907
O6 0.002 0.741 -1.143
O7 0.002 0.741 1.143

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.51541.09171.08681.08682.37872.3787
N21.51542.11092.10822.10821.27781.2778
H31.09172.11091.79631.79632.85172.8517
H41.08682.10821.79631.81433.20442.4739
H51.08682.10821.79631.81432.47393.2044
O62.37871.27782.85173.20442.47392.2863
O72.37871.27782.85172.47393.20442.2863

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 116.516 C1 N2 O7 116.516
N2 C1 H3 107.006 N2 C1 H4 107.069
N2 C1 H5 107.069 H3 C1 H4 111.085
H3 C1 H5 111.085 H4 C1 H5 113.167
O6 N2 O7 126.918
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.391      
2 N 0.238      
3 H 0.257      
4 H 0.246      
5 H 0.246      
6 O -0.298      
7 O -0.298      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.067 -3.491 0.000 3.491
CHELPG        
AIM        
ESP -3.487 -0.027 0.060 3.488


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.272 -0.164 0.000
y -0.164 -21.642 0.000
z 0.000 0.000 -26.067
Traceless
 xyz
x 2.582 -0.164 0.000
y -0.164 2.028 0.000
z 0.000 0.000 -4.610
Polar
3z2-r2-9.220
x2-y20.370
xy-0.164
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.038 -0.013 0.000
y -0.013 3.394 0.000
z 0.000 0.000 4.534


<r2> (average value of r2) Å2
<r2> 66.670
(<r2>)1/2 8.165