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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: B3PW91/6-31G**

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 B3PW91/6-31G**
 hartrees
Energy at 0K-114.368844
Energy at 298.15K-114.370259
HF Energy-114.368844
Nuclear repulsion energy30.635086
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 B3PW91/6-31G**
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' 3736 3580 52.34      
2 A' 2817 2700 172.28      
3 A' 1519 1456 28.61      
4 A' 1353 1297 69.96      
5 A' 1211 1161 128.36      
6 A" 1101 1055 121.46      

Unscaled Zero Point Vibrational Energy (zpe) 5868.7 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 5624.6 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 B3PW91/6-31G**
ABC
9.45574 1.21573 1.07723

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.745 0.000
O2 0.011 -0.571 0.000
H3 -1.091 0.965 0.000
H4 0.935 -0.869 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31551.12391.8594
O21.31551.89040.9707
H31.12391.89042.7328
H41.85940.97072.7328

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.888 O2 C1 H3 101.304
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.065      
2 O -0.387      
3 H 0.091      
4 H 0.361      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.388 -1.627 0.000 1.673
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.760 -3.490 0.000
y -3.490 -13.438 0.000
z 0.000 0.000 -11.620
Traceless
 xyz
x 1.769 -3.490 0.000
y -3.490 -2.248 0.000
z 0.000 0.000 0.479
Polar
3z2-r20.958
x2-y22.678
xy-3.490
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.446 -0.614 0.000
y -0.614 2.392 0.000
z 0.000 0.000 1.372


<r2> (average value of r2) Å2
<r2> 17.144
(<r2>)1/2 4.140

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-114.360796
Energy at 298.15K-114.362198
HF Energy-114.360796
Nuclear repulsion energy30.595569
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 B3PW91/6-31G**
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' 3548 3400 24.48      
2 A' 2720 2607 248.64      
3 A' 1478 1417 53.49      
4 A' 1364 1307 62.42      
5 A' 1222 1171 29.17      
6 A" 1022 979 39.43      

Unscaled Zero Point Vibrational Energy (zpe) 5676.6 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 5440.4 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 B3PW91/6-31G**
ABC
9.26830 1.21306 1.07267

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.122 0.743 0.000
O2 0.122 -0.565 0.000
H3 -0.961 1.066 0.000
H4 -0.753 -1.002 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30821.13041.9522
O21.30821.95790.9784
H31.13041.95792.0781
H41.95220.97842.0781

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 116.514 O2 C1 H3 106.587
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.010      
2 O -0.380      
3 H 0.057      
4 H 0.334      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.905 -1.710 0.000 3.371
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.050 0.058 0.000
y 0.058 -12.863 0.000
z 0.000 0.000 -11.597
Traceless
 xyz
x 0.180 0.058 0.000
y 0.058 -1.040 0.000
z 0.000 0.000 0.859
Polar
3z2-r21.718
x2-y20.813
xy0.058
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.320 -0.081 0.000
y -0.081 2.851 0.000
z 0.000 0.000 1.393


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