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

using model chemistry: B1B95/6-31G*

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 B1B95/6-31G*
 hartrees
Energy at 0K-244.920696
Energy at 298.15K 
HF Energy-244.920696
Nuclear repulsion energy125.477970
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 B1B95/6-31G*
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' 3229 3066 1.37      
2 A' 3128 2969 0.38      
3 A' 1507 1431 35.15      
4 A' 1489 1413 79.30      
5 A' 1427 1354 9.27      
6 A' 1151 1092 2.08      
7 A' 960 912 13.07      
8 A' 680 646 22.70      
9 A' 621 589 6.09      
10 A" 3262 3096 0.32      
11 A" 1747 1659 279.31      
12 A" 1491 1415 31.03      
13 A" 1124 1067 7.98      
14 A" 482 457 0.52      
15 A" 43 41 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 11169.9 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 10603.6 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 B1B95/6-31G*
ABC
0.41278 0.35660 0.19851

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.313 0.000
N2 -0.012 0.173 0.000
H3 1.047 -1.618 0.000
H4 -0.493 -1.655 0.904
H5 -0.493 -1.655 -0.904
O6 0.001 0.725 -1.084
O7 0.001 0.725 1.084

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48551.08981.08591.08592.30802.3080
N21.48552.08092.09522.09521.21671.2167
H31.08982.08091.78621.78622.78552.7855
H41.08592.09521.78621.80893.14052.4374
H51.08592.09521.78621.80892.43743.1405
O62.30801.21672.78553.14052.43742.1681
O72.30801.21672.78552.43743.14052.1681

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 116.983 C1 N2 O7 116.983
N2 C1 H3 106.796 N2 C1 H4 108.136
N2 C1 H5 108.136 H3 C1 H4 110.370
H3 C1 H5 110.370 H4 C1 H5 112.800
O6 N2 O7 126.001
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.377      
2 N 0.455      
3 H 0.228      
4 H 0.220      
5 H 0.220      
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
  0.050 -3.504 0.000 3.504
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.164 -0.116 0.000
y -0.116 -21.639 0.000
z 0.000 0.000 -25.843
Traceless
 xyz
x 2.577 -0.116 0.000
y -0.116 1.865 0.000
z 0.000 0.000 -4.442
Polar
3z2-r2-8.884
x2-y20.474
xy-0.116
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.504 -0.028 0.000
y -0.028 3.764 0.000
z 0.000 0.000 4.704


<r2> (average value of r2) Å2
<r2> 63.368
(<r2>)1/2 7.960