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All results from a given calculation for COH (Hydroxymethylidyne)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/3-21G
 hartrees
Energy at 0K-113.017318
Energy at 298.15K-113.017125
HF Energy-113.017318
Nuclear repulsion energy25.003955
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 PBEPBEultrafine/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' 2332 2311 475.05 860.00 0.33 0.50
2 A' 1225 1213 30.19 31.34 0.50 0.67
3 A' 980 971 54.59 195.79 0.39 0.56

Unscaled Zero Point Vibrational Energy (zpe) 2268.0 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 2247.4 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 PBEPBEultrafine/3-21G
ABC
22.28692 1.30708 1.23467

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.062 0.818 0.000
O2 0.062 -0.489 0.000
H3 -0.864 -0.997 0.000

Atom - Atom Distances (Å)
  C1 O2 H3
C11.30692.0375
O21.30691.0559
H32.03751.0559

picture of Hydroxymethylidyne state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.113      
2 O -0.453      
3 H 0.340      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.710 -2.072 0.000 2.686
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.857 1.577 0.000
y 1.577 -12.952 0.000
z 0.000 0.000 -10.953
Traceless
 xyz
x 1.095 1.577 0.000
y 1.577 -2.047 0.000
z 0.000 0.000 0.952
Polar
3z2-r21.904
x2-y22.095
xy1.577
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.747 0.833 0.000
y 0.833 2.978 0.000
z 0.000 0.000 1.127


<r2> (average value of r2) Å2
<r2> 14.958
(<r2>)1/2 3.868