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All results from a given calculation for COH (Hydroxymethylidyne)

using model chemistry: HF/SDD

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/SDD
 hartrees
Energy at 0K-113.166929
Energy at 298.15K-113.166773
HF Energy-113.166929
Nuclear repulsion energy25.342198
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/SDD
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' 3925 3534 80.94 117.17 0.31 0.48
2 A' 1343 1210 209.00 6.56 0.39 0.56
3 A' 1189 1070 187.81 5.94 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3228.6 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 2907.0 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/SDD
ABC
27.70398 1.29970 1.24146

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.055 0.821 0.000
O2 0.055 -0.493 0.000
H3 -0.772 -0.979 0.000

Atom - Atom Distances (Å)
  C1 O2 H3
C11.31431.9806
O21.31430.9594
H31.98060.9594

picture of Hydroxymethylidyne state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.122      
2 O -0.557      
3 H 0.435      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.048 -1.800 0.000 2.727
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.144 2.149 0.000
y 2.149 -13.535 0.000
z 0.000 0.000 -11.185
Traceless
 xyz
x 1.216 2.149 0.000
y 2.149 -2.371 0.000
z 0.000 0.000 1.154
Polar
3z2-r22.309
x2-y22.391
xy2.149
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.745 0.294 0.000
y 0.294 2.327 0.000
z 0.000 0.000 1.380


<r2> (average value of r2) Å2
<r2> 15.054
(<r2>)1/2 3.880