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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G
 hartrees
Energy at 0K-169.535888
Energy at 298.15K-169.539605
HF Energy-169.535888
Nuclear repulsion energy69.578184
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 PBE1PBE/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' 3197 3056 9.84      
2 A' 3068 2933 0.92      
3 A' 1589 1519 32.03      
4 A' 1491 1426 37.79      
5 A' 1418 1355 40.32      
6 A' 1172 1120 19.65      
7 A' 864 826 22.04      
8 A' 568 543 2.30      
9 A" 3172 3032 1.63      
10 A" 1493 1427 19.62      
11 A" 1007 963 0.51      
12 A" 174 166 3.42      

Unscaled Zero Point Vibrational Energy (zpe) 9605.6 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 9182.0 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 PBE1PBE/6-31G
ABC
2.01737 0.37432 0.33547

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.965 -0.558 0.000
N2 0.000 0.573 0.000
O3 1.181 0.217 0.000
H4 -0.456 -1.525 0.000
H5 -1.601 -0.437 0.883
H6 -1.601 -0.437 -0.883

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.48672.28171.09281.09451.0945
N21.48671.23332.14652.08822.0882
O32.28171.23332.39002.99062.9906
H41.09282.14652.39001.80941.8094
H51.09452.08822.99061.80941.7655
H61.09452.08822.99061.80941.7655

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.712 N2 C1 H4 111.734
N2 C1 H5 107.023 N2 C1 H6 107.023
H4 C1 H5 111.633 H4 C1 H6 111.633
H5 C1 H6 107.523
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.412      
2 N 0.058      
3 O -0.282      
4 H 0.197      
5 H 0.220      
6 H 0.220      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.363 -1.591 0.000 2.849
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.492 0.460 0.000
y 0.460 -19.247 0.000
z 0.000 0.000 -16.490
Traceless
 xyz
x -0.624 0.460 0.000
y 0.460 -1.756 0.000
z 0.000 0.000 2.380
Polar
3z2-r24.759
x2-y20.755
xy0.460
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.225 0.257 0.000
y 0.257 2.611 0.000
z 0.000 0.000 2.244


<r2> (average value of r2) Å2
<r2> 42.173
(<r2>)1/2 6.494