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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: PBEPBE/STO-3G

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/STO-3G
 hartrees
Energy at 0K-112.740277
Energy at 298.15K-112.741650
HF Energy-112.740277
Nuclear repulsion energy29.165114
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/STO-3G
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' 3477 3177 19.99      
2 A' 2856 2609 105.63      
3 A' 1611 1472 24.98      
4 A' 1333 1218 2.17      
5 A' 1205 1101 58.38      
6 A" 1110 1014 52.55      

Unscaled Zero Point Vibrational Energy (zpe) 5796.2 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 5295.4 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/STO-3G
ABC
8.05948 1.12162 0.98459

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.010 0.787 0.000
O2 0.010 -0.597 0.000
H3 -1.157 0.918 0.000
H4 1.018 -0.865 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.38341.17381.9353
O21.38341.91191.0435
H31.17381.91192.8125
H41.93531.04352.8125

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 104.905 O2 C1 H3 96.425
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.079      
2 O -0.152      
3 H 0.008      
4 H 0.223      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.544 -1.659 0.000 1.746
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.807 -2.310 0.000
y -2.310 -12.704 0.000
z 0.000 0.000 -10.346
Traceless
 xyz
x 1.718 -2.310 0.000
y -2.310 -2.627 0.000
z 0.000 0.000 0.909
Polar
3z2-r21.818
x2-y22.896
xy-2.310
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.464 -0.660 0.000
y -0.660 1.515 0.000
z 0.000 0.000 0.624


<r2> (average value of r2) Å2
<r2> 17.370
(<r2>)1/2 4.168

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at PBEPBE/STO-3G
 hartrees
Energy at 0K-112.732455
Energy at 298.15K-112.733806
HF Energy-112.732455
Nuclear repulsion energy29.259884
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/STO-3G
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' 3120 2851 198.65      
2 A' 2799 2557 129.49      
3 A' 1539 1406 22.80      
4 A' 1366 1248 12.43      
5 A' 1138 1039 0.77      
6 A" 1043 953 13.95      

Unscaled Zero Point Vibrational Energy (zpe) 5502.0 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 5026.6 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/STO-3G
ABC
8.15362 1.12705 0.99018

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.131 0.774 0.000
O2 0.131 -0.586 0.000
H3 -1.000 1.083 0.000
H4 -0.831 -1.043 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.35971.17172.0559
O21.35972.01501.0648
H31.17172.01502.1324
H42.05591.06482.1324

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 115.450 O2 C1 H3 105.259
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.053      
2 O -0.136      
3 H 0.001      
4 H 0.188      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.320 -1.597 0.000 2.816
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.800 0.102 0.000
y 0.102 -12.072 0.000
z 0.000 0.000 -10.349
Traceless
 xyz
x 0.411 0.102 0.000
y 0.102 -1.498 0.000
z 0.000 0.000 1.087
Polar
3z2-r22.173
x2-y21.273
xy0.102
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.168 0.202 0.000
y 0.202 2.004 0.000
z 0.000 0.000 0.664


<r2> (average value of r2) Å2
<r2> 17.444
(<r2>)1/2 4.177