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 COH (Hydroxymethylidyne)

using model chemistry: HF/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at HF/aug-cc-pVDZ
 hartrees
Energy at 0K-113.218161
Energy at 298.15K-113.218021
HF Energy-113.218161
Nuclear repulsion energy26.090330
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-pVDZ
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' 3940 3588 85.29 109.42 0.25 0.40
2 A' 1467 1336 171.69 3.33 0.46 0.63
3 A' 1288 1173 116.72 4.27 0.44 0.62

Unscaled Zero Point Vibrational Energy (zpe) 3347.8 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 3048.5 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-pVDZ
ABC
24.17694 1.40674 1.32939

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.059 0.789 0.000
O2 0.059 -0.484 0.000
H3 -0.821 -0.857 0.000

Atom - Atom Distances (Å)
  C1 O2 H3
C11.27291.8655
O21.27290.9549
H31.86550.9549

picture of Hydroxymethylidyne state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.117      
2 O -0.313      
3 H 0.196      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.643 -1.979 0.000 2.572
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.110 1.734 0.000
y 1.734 -13.625 0.000
z 0.000 0.000 -11.318
Traceless
 xyz
x 1.362 1.734 0.000
y 1.734 -2.411 0.000
z 0.000 0.000 1.049
Polar
3z2-r22.099
x2-y22.515
xy1.734
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.500 0.186 0.000
y 0.186 2.728 0.000
z 0.000 0.000 2.059


<r2> (average value of r2) Å2
<r2> 14.569
(<r2>)1/2 3.817