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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: HF/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-113.801256
Energy at 298.15K-113.802689
HF Energy-113.801256
Nuclear repulsion energy31.153293
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/6-31G(2df,p)
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' 4109 3720 107.29      
2 A' 3037 2750 140.38      
3 A' 1624 1471 39.48      
4 A' 1442 1306 115.46      
5 A' 1324 1199 145.00      
6 A" 1121 1015 131.74      

Unscaled Zero Point Vibrational Energy (zpe) 6328.0 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 5730.0 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 HF/6-31G(2df,p)
ABC
10.14196 1.24501 1.10889

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.012 0.732 0.000
O2 0.012 -0.562 0.000
H3 -1.063 0.986 0.000
H4 0.901 -0.879 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.29421.10391.8405
O21.29421.88420.9444
H31.10391.88422.7083
H41.84050.94442.7083

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 109.616 O2 C1 H3 103.288
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.114      
2 O -0.376      
3 H 0.126      
4 H 0.363      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.245 -1.351 0.000 1.373
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.840 -3.622 0.000
y -3.622 -13.351 0.000
z 0.000 0.000 -11.608
Traceless
 xyz
x 1.640 -3.622 0.000
y -3.622 -2.127 0.000
z 0.000 0.000 0.487
Polar
3z2-r20.975
x2-y22.511
xy-3.622
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.306 -0.518 0.000
y -0.518 2.296 0.000
z 0.000 0.000 1.588


<r2> (average value of r2) Å2
<r2> 16.884
(<r2>)1/2 4.109

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at HF/6-31G(2df,p)
 hartrees
Energy at 0K-113.793699
Energy at 298.15K-113.795122
HF Energy-113.793699
Nuclear repulsion energy31.080217
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/6-31G(2df,p)
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' 4055 3672 44.96      
2 A' 2955 2676 194.80      
3 A' 1596 1445 49.17      
4 A' 1442 1305 174.58      
5 A' 1356 1227 20.13      
6 A" 1040 942 40.70      

Unscaled Zero Point Vibrational Energy (zpe) 6222.1 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 5634.1 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 HF/6-31G(2df,p)
ABC
9.72625 1.24244 1.10171

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.120 0.732 0.000
O2 0.120 -0.561 0.000
H3 -0.940 1.064 0.000
H4 -0.734 -0.970 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.29351.10981.9044
O21.29351.93960.9465
H31.10981.93962.0441
H41.90440.94652.0441

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 115.598 O2 C1 H3 107.370
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.073      
2 O -0.380      
3 H 0.099      
4 H 0.354      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.941 -1.433 0.000 3.271
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.972 -0.066 0.000
y -0.066 -12.927 0.000
z 0.000 0.000 -11.597
Traceless
 xyz
x 0.290 -0.066 0.000
y -0.066 -1.142 0.000
z 0.000 0.000 0.852
Polar
3z2-r21.704
x2-y20.954
xy-0.066
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.204 -0.156 0.000
y -0.156 2.498 0.000
z 0.000 0.000 1.602


<r2> (average value of r2) Å2
<r2> 17.029
(<r2>)1/2 4.127