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All results from a given calculation for COH (Hydroxymethylidyne)

using model chemistry: PBE1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at PBE1PBE/3-21G
 hartrees
Energy at 0K-113.017811
Energy at 298.15K-113.017646
HF Energy-113.017811
Nuclear repulsion energy25.217852
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/3-21G
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' 3042 2922 50.07 495.36 0.33 0.50
2 A' 1319 1267 11.18 8.05 0.68 0.81
3 A' 1104 1061 129.98 32.85 0.51 0.67

Unscaled Zero Point Vibrational Energy (zpe) 2733.0 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 2624.7 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/3-21G
ABC
23.65744 1.31654 1.24714

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.060 0.815 0.000
O2 0.060 -0.491 0.000
H3 -0.836 -0.965 0.000

Atom - Atom Distances (Å)
  C1 O2 H3
C11.30611.9930
O21.30611.0134
H31.99301.0134

picture of Hydroxymethylidyne state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.139      
2 O -0.529      
3 H 0.390      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.896 -2.107 0.000 2.834
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.743 1.781 0.000
y 1.781 -12.964 0.000
z 0.000 0.000 -10.888
Traceless
 xyz
x 1.183 1.781 0.000
y 1.781 -2.149 0.000
z 0.000 0.000 0.966
Polar
3z2-r21.932
x2-y22.221
xy1.781
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.541 0.530 0.000
y 0.530 2.481 0.000
z 0.000 0.000 1.135


<r2> (average value of r2) Å2
<r2> 14.798
(<r2>)1/2 3.847