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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: HF/aug-cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-168.898875
Energy at 298.15K-168.902705
HF Energy-168.898875
Nuclear repulsion energy71.811357
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-pVTZ
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 2978 15.18      
2 A' 3171 2887 6.95      
3 A' 1936 1762 100.95      
4 A' 1582 1440 22.67      
5 A' 1531 1394 6.97      
6 A' 1278 1163 15.33      
7 A' 986 897 3.61      
8 A' 632 576 5.20      
9 A" 3246 2955 10.45      
10 A" 1583 1441 11.08      
11 A" 1091 993 4.22      
12 A" 175 160 0.55      

Unscaled Zero Point Vibrational Energy (zpe) 10240.2 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 9322.6 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-pVTZ
ABC
2.16300 0.39454 0.35541

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.923 -0.580 0.000
N2 0.000 0.554 0.000
O3 1.129 0.260 0.000
H4 -0.391 -1.520 0.000
H5 -1.552 -0.480 0.875
H6 -1.552 -0.480 -0.875

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.46222.21711.08081.08271.0827
N21.46221.16692.11142.06042.0604
O32.21711.16692.34082.91592.9159
H41.08082.11142.34081.78821.7882
H51.08272.06042.91591.78821.7507
H61.08272.06042.91591.78821.7507

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 114.514 N2 C1 H4 111.369
N2 C1 H5 107.181 N2 C1 H6 107.181
H4 C1 H5 111.488 H4 C1 H6 111.488
H5 C1 H6 107.907
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.719      
2 N 0.005      
3 O -0.356      
4 H 0.400      
5 H 0.335      
6 H 0.335      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.110 -1.452 0.000 2.562
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.521 0.426 0.000
y 0.426 -19.086 0.000
z 0.000 0.000 -16.717
Traceless
 xyz
x -0.619 0.426 0.000
y 0.426 -1.467 0.000
z 0.000 0.000 2.087
Polar
3z2-r24.173
x2-y20.565
xy0.426
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.647 0.243 0.000
y 0.243 3.489 0.000
z 0.000 0.000 3.022


<r2> (average value of r2) Å2
<r2> 40.603
(<r2>)1/2 6.372