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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: PBE1PBE/aug-cc-pVTZ

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 PBE1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-114.332132
Energy at 298.15K-114.333550
HF Energy-114.332132
Nuclear repulsion energy30.875318
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 PBE1PBE/aug-cc-pVTZ
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' 3750 3606 80.34      
2 A' 2864 2754 131.08      
3 A' 1504 1446 21.78      
4 A' 1363 1310 86.70      
5 A' 1217 1170 133.87      
6 A" 1097 1055 114.52      

Unscaled Zero Point Vibrational Energy (zpe) 5897.1 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 5670.0 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 PBE1PBE/aug-cc-pVTZ
ABC
9.72599 1.23254 1.09391

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.737 0.000
O2 0.011 -0.566 0.000
H3 -1.078 0.978 0.000
H4 0.926 -0.875 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30281.11481.8541
O21.30281.88870.9661
H31.11481.88872.7293
H41.85410.96612.7293

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 108.699 O2 C1 H3 102.470
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.417      
2 O -0.139      
3 H 0.328      
4 H 0.228      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.128 -1.694 0.000 1.699
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.351 -3.839 0.000
y -3.839 -13.970 0.000
z 0.000 0.000 -12.300
Traceless
 xyz
x 1.784 -3.839 0.000
y -3.839 -2.145 0.000
z 0.000 0.000 0.361
Polar
3z2-r20.722
x2-y22.619
xy-3.839
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.246 -0.250 0.000
y -0.250 3.377 -0.000
z 0.000 -0.000 2.508


<r2> (average value of r2) Å2
<r2> 17.395
(<r2>)1/2 4.171

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at PBE1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-114.324494
Energy at 298.15K-114.325901
HF Energy-114.324494
Nuclear repulsion energy30.779247
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 PBE1PBE/aug-cc-pVTZ
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' 3603 3464 18.33      
2 A' 2777 2670 192.48      
3 A' 1469 1412 50.00      
4 A' 1364 1311 73.86      
5 A' 1225 1178 31.55      
6 A" 1024 985 26.68      

Unscaled Zero Point Vibrational Energy (zpe) 5730.4 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 5509.8 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 PBE1PBE/aug-cc-pVTZ
ABC
9.39569 1.22687 1.08517

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.122 0.737 0.000
O2 0.122 -0.564 0.000
H3 -0.949 1.070 0.000
H4 -0.755 -0.984 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30081.12111.9319
O21.30081.95340.9724
H31.12111.95342.0637
H41.93190.97242.0637

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 115.634 O2 C1 H3 107.285
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.340      
2 O -0.129      
3 H 0.287      
4 H 0.181      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.944 -1.691 0.000 3.395
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.578 -0.264 0.000
y -0.264 -13.342 0.000
z 0.000 0.000 -12.236
Traceless
 xyz
x 0.211 -0.264 0.000
y -0.264 -0.935 0.000
z 0.000 0.000 0.724
Polar
3z2-r21.447
x2-y20.764
xy-0.264
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.264 0.156 0.000
y 0.156 3.743 0.000
z 0.000 0.000 2.488


<r2> (average value of r2) Å2
<r2> 17.538
(<r2>)1/2 4.188