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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-169.731963
Energy at 298.15K-169.735661
HF Energy-169.731963
Nuclear repulsion energy70.361718
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 B3PW91/6-31G**
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' 3167 3035 11.26      
2 A' 3042 2915 1.56      
3 A' 1709 1638 72.40      
4 A' 1459 1398 21.60      
5 A' 1371 1314 23.81      
6 A' 1158 1110 15.74      
7 A' 854 819 25.43      
8 A' 573 550 1.70      
9 A" 3136 3005 3.47      
10 A" 1458 1398 11.58      
11 A" 962 922 0.90      
12 A" 171 163 2.43      

Unscaled Zero Point Vibrational Energy (zpe) 9530.0 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 9133.6 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 B3PW91/6-31G**
ABC
2.03647 0.38372 0.34349

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.945 -0.569 0.000
N2 0.000 0.572 0.000
O3 1.158 0.231 0.000
H4 -0.421 -1.529 0.000
H5 -1.585 -0.454 0.881
H6 -1.585 -0.454 -0.881

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.48162.24961.09331.09551.0955
N21.48161.20702.14252.08402.0840
O32.24961.20702.36382.96142.9614
H41.09332.14252.36381.81311.8131
H51.09552.08402.96141.81311.7628
H61.09552.08402.96141.81311.7628

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.198 N2 C1 H4 111.737
N2 C1 H5 106.969 N2 C1 H6 106.969
H4 C1 H5 111.862 H4 C1 H6 111.862
H5 C1 H6 107.133
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.284      
2 N 0.050      
3 O -0.255      
4 H 0.152      
5 H 0.169      
6 H 0.169      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.980 -1.347 0.000 2.395
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.840 0.349 0.000
y 0.349 -18.747 0.000
z 0.000 0.000 -16.378
Traceless
 xyz
x -0.278 0.349 0.000
y 0.349 -1.639 0.000
z 0.000 0.000 1.916
Polar
3z2-r23.832
x2-y20.907
xy0.349
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.214 0.325 0.000
y 0.325 2.855 0.000
z 0.000 0.000 2.432


<r2> (average value of r2) Å2
<r2> 41.273
(<r2>)1/2 6.424