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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: MP4=FULL/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 MP4=FULL/6-31G*
 hartrees
Energy at 0K-114.105272
Energy at 298.15K-114.106688
HF Energy-113.781401
Nuclear repulsion energy30.382079
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 MP4=FULL/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' 3647 3507        
2 A' 2853 2744        
3 A' 1535 1477        
4 A' 1324 1273        
5 A' 1225 1178        
6 A" 1121 1078        

Unscaled Zero Point Vibrational Energy (zpe) 5853.1 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 5628.3 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 MP4=FULL/6-31G*
ABC
9.34474 1.19385 1.05860

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.010 0.752 0.000
O2 0.010 -0.577 0.000
H3 -1.091 0.969 0.000
H4 0.946 -0.867 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.32951.12191.8698
O21.32951.89770.9790
H31.12191.89772.7411
H41.86980.97902.7411

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.206 O2 C1 H3 101.112
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP4=FULL/6-31G*
 hartrees
Energy at 0K-114.096537
Energy at 298.15K-114.097942
HF Energy-113.772577
Nuclear repulsion energy30.333480
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 MP4=FULL/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' 3516 3381        
2 A' 2744 2638        
3 A' 1493 1436        
4 A' 1336 1285        
5 A' 1255 1207        
6 A" 1039 999        

Unscaled Zero Point Vibrational Energy (zpe) 5691.8 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 5473.2 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 MP4=FULL/6-31G*
ABC
9.13458 1.19067 1.05337

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.123 0.751 0.000
O2 0.123 -0.572 0.000
H3 -0.962 1.067 0.000
H4 -0.766 -0.994 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.32331.13011.9590
O21.32331.96590.9846
H31.13011.96592.0708
H41.95900.98462.0708

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 115.388 O2 C1 H3 106.242
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability