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: BLYP/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at BLYP/6-311G**
 hartrees
Energy at 0K-113.799615
Energy at 298.15K-113.799441
HF Energy-113.799615
Nuclear repulsion energy25.710978
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 BLYP/6-311G**
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' 2795 2784 344.29 1462.14 0.33 0.50
2 A' 1299 1294 9.52 80.69 0.40 0.57
3 A' 1048 1044 47.10 253.65 0.39 0.56

Unscaled Zero Point Vibrational Energy (zpe) 2570.9 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 2560.8 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 BLYP/6-311G**
ABC
22.72861 1.38273 1.30343

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.061 0.795 0.000
O2 0.061 -0.482 0.000
H3 -0.851 -0.920 0.000

Atom - Atom Distances (Å)
  C1 O2 H3
C11.27691.9424
O21.27691.0116
H31.94241.0116

picture of Hydroxymethylidyne state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.093      
2 O -0.144      
3 H 0.237      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.560 -2.145 0.000 2.652
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.156 1.426 0.000
y 1.426 -13.280 0.000
z 0.000 0.000 -11.221
Traceless
 xyz
x 1.095 1.426 0.000
y 1.426 -2.092 0.000
z 0.000 0.000 0.997
Polar
3z2-r21.993
x2-y22.124
xy1.426
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.122 0.744 0.000
y 0.744 3.243 0.000
z 0.000 0.000 1.506


<r2> (average value of r2) Å2
<r2> 14.696
(<r2>)1/2 3.834