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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: CCSD/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 CCSD/cc-pVTZ
 hartrees
Energy at 0K-114.235928
Energy at 298.15K-114.237348
HF Energy-113.835507
Nuclear repulsion energy30.758189
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 CCSD/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' 3800 3577 84.54      
2 A' 2882 2712 139.70      
3 A' 1530 1440 23.26      
4 A' 1359 1279 81.64      
5 A' 1236 1163 137.14      
6 A" 1099 1035 118.84      

Unscaled Zero Point Vibrational Energy (zpe) 5952.7 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 5602.6 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 CCSD/cc-pVTZ
ABC
9.67236 1.22035 1.08363

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.742 0.000
O2 0.011 -0.571 0.000
H3 -1.076 0.977 0.000
H4 0.929 -0.862 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31221.11211.8481
O21.31221.89100.9634
H31.11211.89102.7208
H41.84810.96342.7208

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.626 O2 C1 H3 102.209
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCSD/cc-pVTZ
 hartrees
Energy at 0K-114.228420
Energy at 298.15K-114.229829
HF Energy-113.827511
Nuclear repulsion energy30.678106
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 CCSD/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' 3707 3489 21.95      
2 A' 2793 2629 195.79      
3 A' 1500 1412 40.51      
4 A' 1358 1278 91.07      
5 A' 1259 1185 44.10      
6 A" 1020 960 28.76      

Unscaled Zero Point Vibrational Energy (zpe) 5818.6 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 5476.5 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 CCSD/cc-pVTZ
ABC
9.32501 1.21655 1.07615

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.122 0.742 0.000
O2 0.122 -0.569 0.000
H3 -0.949 1.063 0.000
H4 -0.761 -0.962 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31061.11891.9195
O21.31061.95250.9673
H31.11891.95252.0342
H41.91950.96732.0342

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 113.997 O2 C1 H3 106.698
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability