return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: SVWN/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at SVWN/6-311G*
 hartrees
Energy at 0K-168.956224
Energy at 298.15K-168.959904
HF Energy-168.956224
Nuclear repulsion energy70.823345
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 SVWN/6-311G*
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' 3065 3035 11.52      
2 A' 2940 2912 2.47      
3 A' 1657 1641 83.38      
4 A' 1387 1374 33.11      
5 A' 1297 1285 63.01      
6 A' 1125 1114 19.27      
7 A' 857 849 35.26      
8 A' 574 568 1.30      
9 A" 3038 3009 0.01      
10 A" 1377 1364 19.26      
11 A" 929 920 1.01      
12 A" 171 169 3.61      

Unscaled Zero Point Vibrational Energy (zpe) 9208.6 cm-1
Scaled (by 0.9904) Zero Point Vibrational Energy (zpe) 9120.2 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 SVWN/6-311G*
ABC
2.06650 0.39022 0.34961

See section I.F.4 to change rotational constant units
Geometric Data calculated at SVWN/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.938 -0.553 0.000
N2 0.000 0.561 0.000
O3 1.153 0.220 0.000
H4 -0.419 -1.526 0.000
H5 -1.588 -0.422 0.882
H6 -1.588 -0.422 -0.882

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.45612.22901.10241.10381.1038
N21.45611.20202.12802.06562.0656
O32.22901.20202.34892.95012.9501
H41.10242.12802.34891.83391.8339
H51.10382.06562.95011.83391.7648
H61.10382.06562.95011.83391.7648

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.641 N2 C1 H4 111.809
N2 C1 H5 106.783 N2 C1 H6 106.783
H4 C1 H5 112.448 H4 C1 H6 112.448
H5 C1 H6 106.152
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.636      
2 N 0.037      
3 O -0.178      
4 H 0.236      
5 H 0.270      
6 H 0.270      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.082 -1.328 0.000 2.470
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.231 0.363 0.000
y 0.363 -19.415 0.000
z 0.000 0.000 -16.655
Traceless
 xyz
x -0.196 0.363 0.000
y 0.363 -1.971 0.000
z 0.000 0.000 2.168
Polar
3z2-r24.336
x2-y21.183
xy0.363
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.601 0.392 0.000
y 0.392 3.310 0.000
z 0.000 0.000 2.606


<r2> (average value of r2) Å2
<r2> 41.097
(<r2>)1/2 6.411