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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: HF/aug-cc-pVQZ

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/aug-cc-pVQZ
 hartrees
Energy at 0K-113.846484
Energy at 298.15K-113.847917
HF Energy-113.846484
Nuclear repulsion energy31.254569
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/aug-cc-pVQZ
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' 4098 3723 126.29      
2 A' 3060 2780 125.30      
3 A' 1607 1460 43.97      
4 A' 1438 1307 142.69      
5 A' 1317 1196 144.92      
6 A" 1114 1012 137.07      

Unscaled Zero Point Vibrational Energy (zpe) 6317.3 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 5739.2 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 HF/aug-cc-pVQZ
ABC
10.33749 1.25039 1.11547

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.729 0.000
O2 0.011 -0.560 0.000
H3 -1.053 0.995 0.000
H4 0.896 -0.886 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.28911.09701.8411
O21.28911.88470.9430
H31.09701.88472.7087
H41.84110.94302.7087

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 110.185 O2 C1 H3 104.059
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.173      
2 O -0.501      
3 H 0.305      
4 H 0.369      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.062 -1.424 0.000 1.426
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.263 -3.995 0.000
y -3.995 -13.827 0.000
z 0.000 0.000 -12.064
Traceless
 xyz
x 1.682 -3.995 0.000
y -3.995 -2.163 0.000
z 0.000 0.000 0.481
Polar
3z2-r20.962
x2-y22.564
xy-3.995
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.858 -0.243 0.000
y -0.243 2.986 0.000
z 0.000 0.000 2.343


<r2> (average value of r2) Å2
<r2> 17.122
(<r2>)1/2 4.138

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at HF/aug-cc-pVQZ
 hartrees
Energy at 0K-113.838012
Energy at 298.15K-113.839434
HF Energy-113.838012
Nuclear repulsion energy31.137735
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/aug-cc-pVQZ
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' 4037 3668 54.54      
2 A' 2967 2696 183.78      
3 A' 1581 1436 52.58      
4 A' 1428 1298 193.12      
5 A' 1345 1222 20.25      
6 A" 1032 938 32.50      

Unscaled Zero Point Vibrational Energy (zpe) 6195.6 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 5628.7 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/aug-cc-pVQZ
ABC
9.82813 1.24534 1.10529

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.119 0.731 0.000
O2 0.119 -0.560 0.000
H3 -0.932 1.068 0.000
H4 -0.733 -0.970 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.29111.10411.9020
O21.29111.93860.9455
H31.10411.93862.0477
H41.90200.94552.0477

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 115.643 O2 C1 H3 107.814
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.094      
2 O -0.505      
3 H 0.255      
4 H 0.344      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.095 -1.454 0.000 3.420
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.417 -0.294 0.000
y -0.294 -13.302 0.000
z 0.000 0.000 -12.005
Traceless
 xyz
x 0.236 -0.294 0.000
y -0.294 -1.091 0.000
z 0.000 0.000 0.855
Polar
3z2-r21.710
x2-y20.884
xy-0.294
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.847 0.040 0.000
y 0.040 3.120 0.000
z 0.000 0.000 2.324


<r2> (average value of r2) Å2
<r2> 17.257
(<r2>)1/2 4.154