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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: CCD/6-31+G**

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 CCD/6-31+G**
 hartrees
Energy at 0K-114.119367
Energy at 298.15K-114.120788
HF Energy-113.798464
Nuclear repulsion energy30.653391
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 CCD/6-31+G**
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' 3843 3622 89.41      
2 A' 2972 2800 138.52      
3 A' 1542 1453 42.18      
4 A' 1366 1287 130.76      
5 A' 1246 1174 123.22      
6 A" 1115 1051 132.10      

Unscaled Zero Point Vibrational Energy (zpe) 6041.8 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 5693.2 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 CCD/6-31+G**
ABC
9.71507 1.20923 1.07538

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.746 0.000
O2 0.011 -0.571 0.000
H3 -1.075 0.973 0.000
H4 0.926 -0.882 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31781.10871.8680
O21.31781.88750.9670
H31.10871.88752.7284
H41.86800.96702.7284

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 108.715 O2 C1 H3 101.790
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCD/6-31+G**
 hartrees
Energy at 0K-114.109355
Energy at 298.15K-114.110761
HF Energy-113.788166
Nuclear repulsion energy30.545094
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 CCD/6-31+G**
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' 3739 3524 21.55      
2 A' 2861 2696 215.42      
3 A' 1501 1414 53.95      
4 A' 1358 1280 149.01      
5 A' 1257 1185 36.00      
6 A" 1018 959 42.86      

Unscaled Zero Point Vibrational Energy (zpe) 5867.0 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 5528.4 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 CCD/6-31+G**
ABC
9.36482 1.20275 1.06586

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.122 0.748 0.000
O2 0.122 -0.570 0.000
H3 -0.951 1.058 0.000
H4 -0.755 -0.987 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31731.11691.9440
O21.31731.94950.9713
H31.11691.94952.0548
H41.94400.97132.0548

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 115.469 O2 C1 H3 106.139
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability