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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: HF/CEP-121G

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-121G
 hartrees
Energy at 0K-22.194344
Energy at 298.15K-22.195765
HF Energy-22.194344
Nuclear repulsion energy17.657855
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-121G
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' 4034 3681 92.67      
2 A' 3079 2810 129.29      
3 A' 1583 1444 59.13      
4 A' 1306 1192 216.83      
5 A' 1261 1151 126.17      
6 A" 1093 998 215.55      

Unscaled Zero Point Vibrational Energy (zpe) 6178.4 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 5637.8 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-121G
ABC
10.37610 1.15367 1.03823

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.013 0.763 0.000
O2 0.013 -0.578 0.000
H3 -1.061 1.017 0.000
H4 0.883 -0.965 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.34111.10341.9348
O21.34111.92310.9524
H31.10341.92312.7765
H41.93480.95242.7765

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 113.977 O2 C1 H3 103.330
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.010      
2 O -0.499      
3 H 0.071      
4 H 0.418      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.215 -1.100 0.000 1.121
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.302 -4.643 0.000
y -4.643 -13.949 0.000
z 0.000 0.000 -11.958
Traceless
 xyz
x 1.652 -4.643 0.000
y -4.643 -2.319 0.000
z 0.000 0.000 0.668
Polar
3z2-r21.335
x2-y22.648
xy-4.643
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.342 -0.559 0.000
y -0.559 2.465 0.000
z 0.000 0.000 1.600


<r2> (average value of r2) Å2
<r2> 15.954
(<r2>)1/2 3.994

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-22.181688
Energy at 298.15K-22.183091
HF Energy-22.181688
Nuclear repulsion energy17.557311
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-121G
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' 3922 3579 18.34      
2 A' 2921 2665 244.35      
3 A' 1541 1406 87.51      
4 A' 1292 1179 150.00      
5 A' 1278 1166 116.73      
6 A" 989 902 76.37      

Unscaled Zero Point Vibrational Energy (zpe) 5971.1 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 5448.7 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-121G
ABC
9.90717 1.14349 1.02516

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.118 0.766 0.000
O2 0.118 -0.577 0.000
H3 -0.952 1.092 0.000
H4 -0.700 -1.075 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.34321.11832.0149
O21.34321.98200.9579
H31.11831.98202.1809
H42.01490.95792.1809

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 121.324 O2 C1 H3 106.902
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.094      
2 O -0.507      
3 H 0.027      
4 H 0.385      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.745 -1.232 0.000 3.943
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.792 0.095 0.000
y 0.095 -13.469 0.000
z 0.000 0.000 -11.883
Traceless
 xyz
x -0.116 0.095 0.000
y 0.095 -1.131 0.000
z 0.000 0.000 1.247
Polar
3z2-r22.495
x2-y20.677
xy0.095
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.324 -0.083 0.000
y -0.083 2.747 0.000
z 0.000 0.000 1.604


<r2> (average value of r2) Å2
<r2> 16.170
(<r2>)1/2 4.021