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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: HF/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS trans 1A'
1 2 no CS cis 1A'

Conformer 1 (CS trans)

Jump to S1C2
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-22.191953
Energy at 298.15K-22.193369
HF Energy-22.191953
Nuclear repulsion energy17.623884
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/CEP-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' 4079 3677 101.59      
2 A' 3175 2862 154.43      
3 A' 1582 1426 69.99      
4 A' 1316 1186 226.69      
5 A' 1263 1138 135.64      
6 A" 1087 980 226.48      

Unscaled Zero Point Vibrational Energy (zpe) 6251.2 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 5634.8 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 HF/CEP-31G
ABC
10.33503 1.14992 1.03479

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.012 0.764 0.000
O2 0.012 -0.580 0.000
H3 -1.061 1.019 0.000
H4 0.888 -0.965 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.34341.10291.9382
O21.34341.92530.9565
H31.10291.92532.7809
H41.93820.95652.7809

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 113.793 O2 C1 H3 103.377
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.066      
2 O -0.445      
3 H 0.089      
4 H 0.422      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.186 -1.105 0.000 1.120
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.218 -4.723 0.000
y -4.723 -14.020 0.000
z 0.000 0.000 -11.975
Traceless
 xyz
x 1.779 -4.723 0.000
y -4.723 -2.424 0.000
z 0.000 0.000 0.645
Polar
3z2-r21.289
x2-y22.802
xy-4.723
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.994 -0.597 0.000
y -0.597 2.323 0.000
z 0.000 0.000 1.554


<r2> (average value of r2) Å2
<r2> 15.982
(<r2>)1/2 3.998

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-22.178061
Energy at 298.15K-22.179458
HF Energy-22.178061
Nuclear repulsion energy17.535134
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/CEP-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' 3966 3575 19.35      
2 A' 3019 2721 281.91      
3 A' 1550 1397 99.66      
4 A' 1305 1176 182.51      
5 A' 1259 1135 81.93      
6 A" 981 884 68.68      

Unscaled Zero Point Vibrational Energy (zpe) 6039.6 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 5444.1 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/CEP-31G
ABC
9.88296 1.14148 1.02329

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.118 0.767 0.000
O2 0.118 -0.577 0.000
H3 -0.950 1.094 0.000
H4 -0.705 -1.075 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.34441.11722.0175
O21.34441.98340.9618
H31.11721.98342.1825
H42.01750.96182.1825

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 121.158 O2 C1 H3 107.001
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.026      
2 O -0.452      
3 H 0.038      
4 H 0.388      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.930 -1.246 0.000 4.123
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.699 -0.048 0.000
y -0.048 -13.575 0.000
z 0.000 0.000 -11.906
Traceless
 xyz
x 0.042 -0.048 0.000
y -0.048 -1.273 0.000
z 0.000 0.000 1.231
Polar
3z2-r22.463
x2-y20.876
xy-0.048
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.911 -0.033 0.000
y -0.033 2.624 0.000
z 0.000 0.000 1.594


<r2> (average value of r2) Å2
<r2> 16.193
(<r2>)1/2 4.024