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All results from a given calculation for COH (Hydroxymethylidyne)

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-113.745459
Energy at 298.15K-113.745304
HF Energy-113.745459
Nuclear repulsion energy25.845249
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 mPW1PW91/6-31G*
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' 3308 3137 40.53 461.56 0.32 0.49
2 A' 1423 1349 46.97 9.73 0.65 0.79
3 A' 1156 1097 91.38 40.84 0.45 0.62

Unscaled Zero Point Vibrational Energy (zpe) 2943.3 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 2791.2 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 mPW1PW91/6-31G*
ABC
23.14066 1.39119 1.31229

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.060 0.793 0.000
O2 0.060 -0.484 0.000
H3 -0.841 -0.889 0.000

Atom - Atom Distances (Å)
  C1 O2 H3
C11.27661.9083
O21.27660.9883
H31.90830.9883

picture of Hydroxymethylidyne state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.002      
2 O -0.432      
3 H 0.429      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.692 -2.114 0.000 2.708
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.605 1.588 0.000
y 1.588 -12.888 0.000
z 0.000 0.000 -10.888
Traceless
 xyz
x 1.283 1.588 0.000
y 1.588 -2.141 0.000
z 0.000 0.000 0.858
Polar
3z2-r21.717
x2-y22.283
xy1.588
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.745 0.428 0.000
y 0.428 2.510 0.000
z 0.000 0.000 1.334


<r2> (average value of r2) Å2
<r2> 14.350
(<r2>)1/2 3.788