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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-114.362216
Energy at 298.15K-114.363631
HF Energy-114.362216
Nuclear repulsion energy30.611091
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' 3669 3510 47.80      
2 A' 2835 2713 174.42      
3 A' 1536 1470 31.20      
4 A' 1352 1294 67.57      
5 A' 1226 1173 127.19      
6 A" 1107 1059 122.36      

Unscaled Zero Point Vibrational Energy (zpe) 5863.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 5609.5 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
9.43632 1.21464 1.07612

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 -1.090 0.963 0.000
H4 0.938 -0.871 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31621.12271.8632
O21.31621.88860.9743
H31.12271.88862.7347
H41.86320.97432.7347

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.944 O2 C1 H3 101.196
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 -0.105      
2 O -0.467      
3 H 0.127      
4 H 0.445      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.394 -1.630 0.000 1.677
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.743 -3.526 0.000
y -3.526 -13.477 0.000
z 0.000 0.000 -11.650
Traceless
 xyz
x 1.821 -3.526 0.000
y -3.526 -2.281 0.000
z 0.000 0.000 0.460
Polar
3z2-r20.920
x2-y22.734
xy-3.526
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.419 -0.613 0.000
y -0.613 2.362 0.000
z 0.000 0.000 1.350


<r2> (average value of r2) Å2
<r2> 17.165
(<r2>)1/2 4.143

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-114.353950
Energy at 298.15K-114.355354
HF Energy-114.353950
Nuclear repulsion energy30.567659
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' 3462 3312 29.16      
2 A' 2734 2615 254.76      
3 A' 1492 1427 55.33      
4 A' 1365 1306 57.70      
5 A' 1242 1188 28.83      
6 A" 1027 983 40.22      

Unscaled Zero Point Vibrational Energy (zpe) 5660.9 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 5415.8 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 B3PW91/6-31G*
ABC
9.25218 1.21175 1.07143

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 0.123 0.744 0.000
O2 0.123 -0.565 0.000
H3 -0.960 1.066 0.000
H4 -0.756 -1.007 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30851.12941.9582
O21.30851.95730.9831
H31.12941.95732.0823
H41.95820.98312.0823

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 116.697 O2 C1 H3 106.572
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 -0.050      
2 O -0.458      
3 H 0.092      
4 H 0.416      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.940 -1.707 0.000 3.399
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.049 0.068 0.000
y 0.068 -12.896 0.000
z 0.000 0.000 -11.628
Traceless
 xyz
x 0.213 0.068 0.000
y 0.068 -1.057 0.000
z 0.000 0.000 0.844
Polar
3z2-r21.688
x2-y20.847
xy0.068
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.298 -0.070 0.000
y -0.070 2.849 0.000
z 0.000 0.000 1.372


<r2> (average value of r2) Å2
<r2> 17.337
(<r2>)1/2 4.164