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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: MP2=FULL/6-311G*

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 MP2=FULL/6-311G*
 hartrees
Energy at 0K-114.161917
Energy at 298.15K-114.163347
HF Energy-113.813945
Nuclear repulsion energy30.795315
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 MP2=FULL/6-311G*
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' 3778 3578 80.36      
2 A' 2968 2811 140.13      
3 A' 1565 1482 25.99      
4 A' 1385 1312 73.17      
5 A' 1260 1193 132.48      
6 A" 1170 1108 137.52      

Unscaled Zero Point Vibrational Energy (zpe) 6063.0 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 5742.2 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 MP2=FULL/6-311G*
ABC
9.71923 1.22343 1.08664

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.741 0.000
O2 0.011 -0.568 0.000
H3 -1.075 0.971 0.000
H4 0.926 -0.872 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30991.10981.8550
O21.30991.88410.9644
H31.10981.88412.7207
H41.85500.96442.7207

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 108.343 O2 C1 H3 101.962
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-114.151643
Energy at 298.15K-114.153063
HF Energy-113.804190
Nuclear repulsion energy30.712962
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 MP2=FULL/6-311G*
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' 3633 3441 8.68      
2 A' 2848 2697 222.37      
3 A' 1521 1440 54.22      
4 A' 1387 1314 89.09      
5 A' 1293 1225 28.10      
6 A" 1077 1021 45.31      

Unscaled Zero Point Vibrational Energy (zpe) 5879.7 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 5568.7 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 MP2=FULL/6-311G*
ABC
9.41026 1.21916 1.07932

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.122 0.741 0.000
O2 0.122 -0.565 0.000
H3 -0.949 1.066 0.000
H4 -0.753 -0.988 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30581.11921.9369
O21.30581.95150.9711
H31.11921.95152.0632
H41.93690.97112.0632

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 115.784 O2 C1 H3 106.915
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability