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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G*
 hartrees
Energy at 0K-114.276161
Energy at 298.15K-114.277579
HF Energy-114.276161
Nuclear repulsion energy30.684302
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/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' 3700 3516 52.70      
2 A' 2856 2714 168.75      
3 A' 1542 1465 32.19      
4 A' 1374 1306 74.34      
5 A' 1232 1171 123.78      
6 A" 1113 1058 122.89      

Unscaled Zero Point Vibrational Energy (zpe) 5908.4 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 5614.7 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 PBE1PBE/6-31G*
ABC
9.46565 1.22115 1.08162

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.743 0.000
O2 0.011 -0.569 0.000
H3 -1.089 0.963 0.000
H4 0.936 -0.869 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31231.12191.8587
O21.31231.88610.9727
H31.12191.88612.7308
H41.85870.97272.7308

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.939 O2 C1 H3 101.287
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.106      
2 O -0.471      
3 H 0.129      
4 H 0.448      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.386 -1.633 0.000 1.678
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.766 -3.534 0.000
y -3.534 -13.500 0.000
z 0.000 0.000 -11.667
Traceless
 xyz
x 1.818 -3.534 0.000
y -3.534 -2.284 0.000
z 0.000 0.000 0.466
Polar
3z2-r20.933
x2-y22.734
xy-3.534
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.402 -0.607 0.000
y -0.607 2.344 0.000
z 0.000 0.000 1.348


<r2> (average value of r2) Å2
<r2> 17.133
(<r2>)1/2 4.139

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at PBE1PBE/6-31G*
 hartrees
Energy at 0K-114.267793
Energy at 298.15K-114.269199
HF Energy-114.267793
Nuclear repulsion energy30.632527
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/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' 3509 3335 24.43      
2 A' 2758 2621 246.07      
3 A' 1497 1423 55.02      
4 A' 1383 1314 65.14      
5 A' 1252 1189 26.80      
6 A" 1032 980 40.82      

Unscaled Zero Point Vibrational Energy (zpe) 5715.1 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 5431.1 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/6-31G*
ABC
9.27613 1.21728 1.07607

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.122 0.742 0.000
O2 0.122 -0.564 0.000
H3 -0.959 1.064 0.000
H4 -0.755 -1.003 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30561.12841.9525
O21.30561.95460.9808
H31.12841.95462.0772
H41.95250.98082.0772

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 116.578 O2 C1 H3 106.623
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.051      
2 O -0.463      
3 H 0.094      
4 H 0.420      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.954 -1.709 0.000 3.412
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.068 0.055 0.000
y 0.055 -12.922 0.000
z 0.000 0.000 -11.645
Traceless
 xyz
x 0.215 0.055 0.000
y 0.055 -1.065 0.000
z 0.000 0.000 0.850
Polar
3z2-r21.699
x2-y20.854
xy0.055
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.280 -0.076 0.000
y -0.076 2.813 0.000
z 0.000 0.000 1.370


<r2> (average value of r2) Å2
<r2> 17.309
(<r2>)1/2 4.160