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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: QCISD/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 QCISD/6-311G**
 hartrees
Energy at 0K-114.168321
Energy at 298.15K-114.169742
HF Energy-113.821817
Nuclear repulsion energy30.659783
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 QCISD/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' 3823 3648 77.60      
2 A' 2876 2744 157.00      
3 A' 1544 1473 25.77      
4 A' 1347 1285 60.52      
5 A' 1243 1186 134.54      
6 A" 1111 1060 116.93      

Unscaled Zero Point Vibrational Energy (zpe) 5972.2 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 5698.1 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 QCISD/6-311G**
ABC
9.54286 1.21352 1.07661

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.744 0.000
O2 0.011 -0.573 0.000
H3 -1.084 0.974 0.000
H4 0.932 -0.855 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31761.11821.8462
O21.31761.89470.9636
H31.11821.89472.7218
H41.84620.96362.7218

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.033 O2 C1 H3 101.821
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at QCISD/6-311G**
 hartrees
Energy at 0K-114.159212
Energy at 298.15K-114.160617
HF Energy-113.812562
Nuclear repulsion energy30.585451
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 QCISD/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' 3713 3542 17.33      
2 A' 2770 2643 230.47      
3 A' 1502 1433 39.06      
4 A' 1343 1281 87.80      
5 A' 1239 1182 35.18      
6 A" 1015 969 36.07      

Unscaled Zero Point Vibrational Energy (zpe) 5790.2 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 5524.4 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 QCISD/6-311G**
ABC
9.19728 1.21077 1.06992

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.123 0.744 0.000
O2 0.123 -0.571 0.000
H3 -0.958 1.060 0.000
H4 -0.764 -0.958 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31501.12671.9197
O21.31501.95710.9680
H31.12671.95712.0280
H41.91970.96802.0280

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 113.598 O2 C1 H3 106.294
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability