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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: PBEPBE/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 PBEPBE/6-31G
 hartrees
Energy at 0K-114.232560
Energy at 298.15K-114.233946
HF Energy-114.232560
Nuclear repulsion energy29.627705
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 PBEPBE/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' 3429 3381 20.80      
2 A' 2682 2645 192.18      
3 A' 1468 1448 31.54      
4 A' 1188 1172 0.64      
5 A' 1120 1104 186.02      
6 A" 1066 1052 152.01      

Unscaled Zero Point Vibrational Energy (zpe) 5476.0 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 5400.4 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 PBEPBE/6-31G
ABC
9.15561 1.12574 1.00248

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.012 0.778 0.000
O2 0.012 -0.590 0.000
H3 -1.112 0.981 0.000
H4 0.945 -0.930 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.36781.14201.9456
O21.36781.93140.9927
H31.14201.93142.8070
H41.94560.99272.8070

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 110.008 O2 C1 H3 100.241
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.038      
2 O -0.482      
3 H 0.117      
4 H 0.403      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.499 -1.549 0.000 1.627
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.992 -3.922 0.000
y -3.922 -13.725 0.000
z 0.000 0.000 -11.826
Traceless
 xyz
x 1.784 -3.922 0.000
y -3.922 -2.316 0.000
z 0.000 0.000 0.533
Polar
3z2-r21.065
x2-y22.733
xy-3.922
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.531 -0.685 0.000
y -0.685 2.531 0.000
z 0.000 0.000 1.259


<r2> (average value of r2) Å2
<r2> 17.980
(<r2>)1/2 4.240

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at PBEPBE/6-31G
 hartrees
Energy at 0K-114.223970
Energy at 298.15K-114.225343
HF Energy-114.223970
Nuclear repulsion energy29.668176
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 PBEPBE/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' 2985 2944 200.45      
2 A' 2517 2482 305.95      
3 A' 1398 1378 81.44      
4 A' 1235 1218 13.37      
5 A' 1094 1079 26.10      
6 A" 998 984 47.23      

Unscaled Zero Point Vibrational Energy (zpe) 5113.3 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 5042.7 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 PBEPBE/6-31G
ABC
9.12446 1.13150 1.00667

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.123 0.769 0.000
O2 0.123 -0.577 0.000
H3 -0.980 1.108 0.000
H4 -0.744 -1.104 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.34621.15442.0642
O21.34622.01471.0146
H31.15442.01472.2254
H42.06421.01462.2254

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 121.298 O2 C1 H3 107.104
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.037      
2 O -0.470      
3 H 0.076      
4 H 0.356      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.161 -1.567 0.000 3.528
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.597 0.184 0.000
y 0.184 -13.012 0.000
z 0.000 0.000 -11.808
Traceless
 xyz
x -0.187 0.184 0.000
y 0.184 -0.809 0.000
z 0.000 0.000 0.996
Polar
3z2-r21.993
x2-y20.415
xy0.184
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.428 0.151 0.000
y 0.151 3.511 0.000
z 0.000 0.000 1.293


<r2> (average value of r2) Å2
<r2> 18.178
(<r2>)1/2 4.264