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All results from a given calculation for COH (Hydroxymethylidyne)

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-113.114047
Energy at 298.15K-113.113882
HF Energy-113.114047
Nuclear repulsion energy25.221918
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 mPW1PW91/3-21G*
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' 3073 2918 40.95 473.62 0.33 0.50
2 A' 1318 1252 12.68 7.35 0.70 0.82
3 A' 1108 1052 134.65 29.46 0.52 0.68

Unscaled Zero Point Vibrational Energy (zpe) 2749.8 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 2611.2 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 mPW1PW91/3-21G*
ABC
23.75632 1.31602 1.24694

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

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 -0.834 -0.965 0.000

Atom - Atom Distances (Å)
  C1 O2 H3
C11.30651.9918
O21.30651.0113
H31.99181.0113

picture of Hydroxymethylidyne state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.140      
2 O -0.532      
3 H 0.391      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.900 -2.102 0.000 2.834
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.720 1.789 0.000
y 1.789 -12.943 0.000
z 0.000 0.000 -10.868
Traceless
 xyz
x 1.186 1.789 0.000
y 1.789 -2.149 0.000
z 0.000 0.000 0.964
Polar
3z2-r21.927
x2-y22.223
xy1.789
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.531 0.515 0.000
y 0.515 2.457 0.000
z 0.000 0.000 1.135


<r2> (average value of r2) Å2
<r2> 14.784
(<r2>)1/2 3.845