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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: HF/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/aug-cc-pVQZ
 hartrees
Energy at 0K-168.909761
Energy at 298.15K-168.913590
HF Energy-168.909761
Nuclear repulsion energy71.860573
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 HF/aug-cc-pVQZ
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' 3271 2972 15.35      
2 A' 3171 2881 6.94      
3 A' 1940 1762 100.99      
4 A' 1582 1438 22.37      
5 A' 1532 1392 7.17      
6 A' 1278 1161 15.43      
7 A' 987 896 3.67      
8 A' 633 575 5.12      
9 A" 3246 2949 10.46      
10 A" 1583 1438 11.05      
11 A" 1091 991 4.19      
12 A" 176 159 0.56      

Unscaled Zero Point Vibrational Energy (zpe) 10243.9 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 9306.6 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 HF/aug-cc-pVQZ
ABC
2.16774 0.39489 0.35579

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.922 -0.580 0.000
N2 0.000 0.554 0.000
O3 1.128 0.261 0.000
H4 -0.390 -1.521 0.000
H5 -1.551 -0.481 0.875
H6 -1.551 -0.481 -0.875

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.46152.21601.08041.08221.0822
N21.46151.16562.11072.05962.0596
O32.21601.16562.34062.91462.9146
H41.08042.11072.34061.78731.7873
H51.08222.05962.91461.78731.7498
H61.08222.05962.91461.78731.7498

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 114.563 N2 C1 H4 111.389
N2 C1 H5 107.195 N2 C1 H6 107.195
H4 C1 H5 111.471 H4 C1 H6 111.471
H5 C1 H6 107.894
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.629      
2 N 0.164      
3 O -0.412      
4 H 0.335      
5 H 0.271      
6 H 0.271      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.102 -1.452 0.000 2.555
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.502 0.430 0.000
y 0.430 -19.071 0.000
z 0.000 0.000 -16.706
Traceless
 xyz
x -0.613 0.430 0.000
y 0.430 -1.467 0.000
z 0.000 0.000 2.081
Polar
3z2-r24.161
x2-y20.569
xy0.430
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.641 0.242 0.000
y 0.242 3.496 0.000
z 0.000 0.000 3.031


<r2> (average value of r2) Å2
<r2> 40.564
(<r2>)1/2 6.369