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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: PBE1PBE/3-21G

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 PBE1PBE/3-21G
 hartrees
Energy at 0K-113.637363
Energy at 298.15K-113.638770
HF Energy-113.637363
Nuclear repulsion energy29.910386
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 PBE1PBE/3-21G
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' 3482 3344 29.14      
2 A' 2755 2646 164.98      
3 A' 1512 1452 32.06      
4 A' 1264 1214 2.08      
5 A' 1188 1141 189.29      
6 A" 1094 1051 151.37      

Unscaled Zero Point Vibrational Energy (zpe) 5646.8 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 5423.2 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 PBE1PBE/3-21G
ABC
9.28969 1.15108 1.02417

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.768 0.000
O2 0.011 -0.583 0.000
H3 -1.099 0.980 0.000
H4 0.947 -0.919 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.35111.12991.9293
O21.35111.91750.9943
H31.12991.91752.7916
H41.92930.99432.7916

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 109.750 O2 C1 H3 100.848
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.045      
2 O -0.528      
3 H 0.168      
4 H 0.405      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.440 -1.569 0.000 1.630
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.733 -3.888 0.000
y -3.888 -13.643 0.000
z 0.000 0.000 -11.668
Traceless
 xyz
x 1.922 -3.888 0.000
y -3.888 -2.442 0.000
z 0.000 0.000 0.520
Polar
3z2-r21.041
x2-y22.910
xy-3.888
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.256 -0.717 0.000
y -0.717 2.226 0.000
z 0.000 0.000 1.142


<r2> (average value of r2) Å2
<r2> 17.675
(<r2>)1/2 4.204

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at PBE1PBE/3-21G
 hartrees
Energy at 0K-113.628381
Energy at 298.15K-113.629776
HF Energy-113.628381
Nuclear repulsion energy29.941026
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 PBE1PBE/3-21G
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' 3213 3086 47.62      
2 A' 2604 2501 250.22      
3 A' 1459 1402 81.23      
4 A' 1300 1248 20.82      
5 A' 1181 1134 46.56      
6 A" 1020 980 46.15      

Unscaled Zero Point Vibrational Energy (zpe) 5388.6 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 5175.2 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 PBE1PBE/3-21G
ABC
9.17011 1.15548 1.02618

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.123 0.760 0.000
O2 0.123 -0.574 0.000
H3 -0.967 1.100 0.000
H4 -0.755 -1.067 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.33481.14172.0278
O21.33481.99791.0071
H31.14171.99792.1775
H42.02781.00712.1775

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 119.302 O2 C1 H3 107.298
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.024      
2 O -0.521      
3 H 0.123      
4 H 0.374      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.280 -1.676 0.000 3.683
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.259 0.097 0.000
y 0.097 -13.012 0.000
z 0.000 0.000 -11.662
Traceless
 xyz
x 0.078 0.097 0.000
y 0.097 -1.052 0.000
z 0.000 0.000 0.974
Polar
3z2-r21.948
x2-y20.753
xy0.097
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.069 -0.011 0.000
y -0.011 2.842 0.000
z 0.000 0.000 1.197


<r2> (average value of r2) Å2
<r2> 17.865
(<r2>)1/2 4.227