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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: CCD/aug-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 CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-114.240941
Energy at 298.15K-114.242361
HF Energy-113.838190
Nuclear repulsion energy30.815357
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/aug-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' 3808 3644 91.38      
2 A' 2902 2777 119.80      
3 A' 1527 1462 26.45      
4 A' 1366 1308 113.48      
5 A' 1238 1185 133.96      
6 A" 1096 1049 116.48      

Unscaled Zero Point Vibrational Energy (zpe) 5968.8 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 5712.1 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 CCD/aug-cc-pVTZ
ABC
9.74990 1.22443 1.08782

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.740 0.000
O2 0.011 -0.569 0.000
H3 -1.074 0.979 0.000
H4 0.925 -0.870 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30841.11081.8518
O21.30841.89010.9632
H31.11081.89012.7237
H41.85180.96322.7237

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 108.251 O2 C1 H3 102.451
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-114.233042
Energy at 298.15K-114.234451
HF Energy-113.829827
Nuclear repulsion energy30.710945
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/aug-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' 3725 3565 28.93      
2 A' 2813 2692 175.18      
3 A' 1494 1430 41.44      
4 A' 1361 1302 119.72      
5 A' 1264 1210 44.90      
6 A" 1017 974 28.06      

Unscaled Zero Point Vibrational Energy (zpe) 5837.1 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 5586.1 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 CCD/aug-cc-pVTZ
ABC
9.37247 1.21854 1.07835

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.122 0.741 0.000
O2 0.122 -0.568 0.000
H3 -0.948 1.065 0.000
H4 -0.759 -0.967 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30861.11771.9213
O21.30861.95180.9667
H31.11771.95182.0404
H41.92130.96672.0404

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 114.382 O2 C1 H3 106.846
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability