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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: B3PW91/STO-3G

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/STO-3G
 hartrees
Energy at 0K-167.522491
Energy at 298.15K-167.525993
HF Energy-167.522491
Nuclear repulsion energy67.044559
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/STO-3G
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' 3506 3103 1.03      
2 A' 3301 2921 4.57      
3 A' 1655 1464 3.97      
4 A' 1625 1438 17.91      
5 A' 1470 1301 6.65      
6 A' 1149 1017 18.80      
7 A' 867 768 18.72      
8 A' 525 464 0.11      
9 A" 3493 3091 0.24      
10 A" 1629 1442 6.53      
11 A" 983 870 0.00      
12 A" 144 128 1.64      

Unscaled Zero Point Vibrational Energy (zpe) 10173.3 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 9003.4 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/STO-3G
ABC
1.78104 0.35135 0.31102

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.996 -0.603 0.000
N2 0.000 0.631 0.000
O3 1.211 0.223 0.000
H4 -0.454 -1.563 0.000
H5 -1.630 -0.511 0.897
H6 -1.630 -0.511 -0.897

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.58612.35651.10191.10241.1024
N21.58611.27782.24072.18292.1829
O32.35651.27782.44213.06813.0681
H41.10192.24072.44211.81481.8148
H51.10242.18293.06811.81481.7942
H61.10242.18293.06811.81481.7942

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 110.277 N2 C1 H4 111.672
N2 C1 H5 107.203 N2 C1 H6 107.203
H4 C1 H5 110.835 H4 C1 H6 110.835
H5 C1 H6 108.938
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.200      
2 N -0.020      
3 O -0.066      
4 H 0.091      
5 H 0.098      
6 H 0.098      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.979 -1.184 0.000 1.537
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.463 0.437 0.000
y 0.437 -17.311 0.000
z 0.000 0.000 -15.172
Traceless
 xyz
x -0.221 0.437 0.000
y 0.437 -1.494 0.000
z 0.000 0.000 1.715
Polar
3z2-r23.431
x2-y20.848
xy0.437
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.582 0.290 0.000
y 0.290 1.333 0.000
z 0.000 0.000 1.173


<r2> (average value of r2) Å2
<r2> 43.335
(<r2>)1/2 6.583