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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: LSDA/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 LSDA/3-21G*
 hartrees
Energy at 0K-113.167903
Energy at 298.15K-113.169297
HF Energy-113.167903
Nuclear repulsion energy29.829203
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 LSDA/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' 3285 3226 14.02      
2 A' 2609 2562 167.93      
3 A' 1460 1434 28.07      
4 A' 1239 1217 4.22      
5 A' 1133 1112 155.15      
6 A" 1083 1064 141.61      

Unscaled Zero Point Vibrational Energy (zpe) 5404.3 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 5307.1 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 LSDA/3-21G*
ABC
8.95510 1.15604 1.02386

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.767 0.000
O2 0.011 -0.582 0.000
H3 -1.118 0.971 0.000
H4 0.964 -0.914 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.34871.14781.9322
O21.34871.92061.0095
H31.14781.92062.8094
H41.93221.00952.8094

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 109.199 O2 C1 H3 100.278
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.101      
2 O -0.464      
3 H 0.165      
4 H 0.400      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.500 -1.828 0.000 1.895
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.703 -3.834 0.000
y -3.834 -13.713 0.000
z 0.000 0.000 -11.764
Traceless
 xyz
x 2.035 -3.834 0.000
y -3.834 -2.479 0.000
z 0.000 0.000 0.444
Polar
3z2-r20.888
x2-y23.010
xy-3.834
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.406 -0.751 0.000
y -0.751 2.263 0.000
z 0.000 0.000 1.150


<r2> (average value of r2) Å2
<r2> 17.731
(<r2>)1/2 4.211

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-113.160265
Energy at 298.15K-113.161645
HF Energy-113.160265
Nuclear repulsion energy29.927161
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 LSDA/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' 2759 2709 290.95      
2 A' 2455 2411 319.71      
3 A' 1386 1361 113.46      
4 A' 1296 1272 2.13      
5 A' 1096 1076 18.32      
6 A" 1019 1000 34.82      

Unscaled Zero Point Vibrational Energy (zpe) 5004.9 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 4914.8 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 LSDA/3-21G*
ABC
8.99750 1.16545 1.03180

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.124 0.753 0.000
O2 0.124 -0.568 0.000
H3 -0.972 1.123 0.000
H4 -0.768 -1.100 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.32131.15662.0569
O21.32132.01491.0387
H31.15662.01492.2322
H42.05691.03872.2322

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 120.820 O2 C1 H3 108.630
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.023      
2 O -0.448      
3 H 0.128      
4 H 0.343      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.168 -1.783 0.000 3.636
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.340 0.007 0.000
y 0.007 -12.937 0.000
z 0.000 0.000 -11.755
Traceless
 xyz
x 0.006 0.007 0.000
y 0.007 -0.889 0.000
z 0.000 0.000 0.883
Polar
3z2-r21.766
x2-y20.597
xy0.007
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.224 0.211 0.000
y 0.211 3.416 0.000
z 0.000 0.000 1.198


<r2> (average value of r2) Å2
<r2> 17.916
(<r2>)1/2 4.233