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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: PBEPBE/6-31G**

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 PBEPBE/6-31G**
 hartrees
Energy at 0K-114.280287
Energy at 298.15K-114.281688
HF Energy-114.280287
Nuclear repulsion energy30.317471
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 PBEPBE/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' 3566 3518 30.82      
2 A' 2699 2662 180.97      
3 A' 1481 1461 25.45      
4 A' 1289 1272 43.94      
5 A' 1162 1146 121.29      
6 A" 1083 1068 109.49      

Unscaled Zero Point Vibrational Energy (zpe) 5640.3 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 5563.0 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 PBEPBE/6-31G**
ABC
9.12293 1.19482 1.05646

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.753 0.000
O2 0.011 -0.577 0.000
H3 -1.108 0.959 0.000
H4 0.951 -0.865 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.32991.13771.8707
O21.32991.90010.9825
H31.13771.90012.7500
H41.87070.98252.7500

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.041 O2 C1 H3 100.428
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.084      
2 O -0.345      
3 H 0.083      
4 H 0.346      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.431 -1.716 0.000 1.769
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.844 -3.349 0.000
y -3.349 -13.532 0.000
z 0.000 0.000 -11.704
Traceless
 xyz
x 1.774 -3.349 0.000
y -3.349 -2.258 0.000
z 0.000 0.000 0.484
Polar
3z2-r20.968
x2-y22.688
xy-3.349
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.574 -0.636 0.000
y -0.636 2.479 0.000
z 0.000 0.000 1.377


<r2> (average value of r2) Å2
<r2> 17.375
(<r2>)1/2 4.168

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at PBEPBE/6-31G**
 hartrees
Energy at 0K-114.272967
Energy at 298.15K-114.274354
HF Energy-114.272967
Nuclear repulsion energy30.306697
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 PBEPBE/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' 3276 3231 86.47      
2 A' 2609 2573 263.08      
3 A' 1434 1414 50.66      
4 A' 1312 1294 29.96      
5 A' 1150 1134 19.07      
6 A" 1006 993 34.19      

Unscaled Zero Point Vibrational Energy (zpe) 5393.1 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 5319.2 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 PBEPBE/6-31G**
ABC
9.05659 1.19317 1.05427

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.124 0.749 0.000
O2 0.124 -0.569 0.000
H3 -0.971 1.077 0.000
H4 -0.763 -1.020 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31771.14261.9785
O21.31771.97640.9951
H31.14261.97642.1066
H41.97850.99512.1066

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 116.936 O2 C1 H3 106.674
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.030      
2 O -0.333      
3 H 0.052      
4 H 0.311      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.768 -1.751 0.000 3.276
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.162 0.049 0.000
y 0.049 -12.884 0.000
z 0.000 0.000 -11.679
Traceless
 xyz
x 0.120 0.049 0.000
y 0.049 -0.964 0.000
z 0.000 0.000 0.845
Polar
3z2-r21.689
x2-y20.723
xy0.049
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.434 0.020 0.000
y 0.020 3.148 0.000
z 0.000 0.000 1.392


<r2> (average value of r2) Å2
<r2> 17.538
(<r2>)1/2 4.188