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All results from a given calculation for COH (Hydroxymethylidyne)

using model chemistry: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-113.476449
Energy at 298.15K-113.476295
HF Energy-113.190776
Nuclear repulsion energy25.582007
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 QCISD/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' 3375 3214 15.22      
2 A' 1391 1325 58.42      
3 A' 1178 1122 113.28      

Unscaled Zero Point Vibrational Energy (zpe) 2972.0 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 2830.2 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 QCISD/6-31G*
ABC
22.59696 1.36095 1.28364

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.061 0.802 0.000
O2 0.061 -0.491 0.000
H3 -0.850 -0.880 0.000

Atom - Atom Distances (Å)
  C1 O2 H3
C11.29291.9127
O21.29290.9901
H31.91270.9901

picture of Hydroxymethylidyne state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability