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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: CCSD/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-114.153142
Energy at 298.15K-114.154556
HF Energy-113.809573
Nuclear repulsion energy30.442420
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/aug-cc-pVDZ
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' 3757 3620 77.12      
2 A' 2875 2770 138.34      
3 A' 1514 1458 29.60      
4 A' 1307 1259 90.10      
5 A' 1225 1180 134.44      
6 A" 1083 1043 113.67      

Unscaled Zero Point Vibrational Energy (zpe) 5880.1 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 5664.9 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/aug-cc-pVDZ
ABC
9.45478 1.19517 1.06104

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.750 0.000
O2 0.011 -0.576 0.000
H3 -1.092 0.982 0.000
H4 0.935 -0.873 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.32641.12731.8670
O21.32641.90920.9697
H31.12731.90922.7470
H41.86700.96972.7470

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.791 O2 C1 H3 101.866
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCSD/aug-cc-pVDZ
 hartrees
Energy at 0K-114.145404
Energy at 298.15K-114.146804
HF Energy-113.801089
Nuclear repulsion energy30.335534
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/aug-cc-pVDZ
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' 3659 3525 19.18      
2 A' 2784 2682 198.35      
3 A' 1473 1419 41.80      
4 A' 1303 1255 85.59      
5 A' 1243 1198 55.65      
6 A" 996 960 28.81      

Unscaled Zero Point Vibrational Energy (zpe) 5729.3 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 5519.6 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/aug-cc-pVDZ
ABC
9.10641 1.18888 1.05159

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.124 0.751 0.000
O2 0.124 -0.576 0.000
H3 -0.965 1.070 0.000
H4 -0.766 -0.972 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.32651.13421.9391
O21.32651.97300.9739
H31.13421.97302.0518
H41.93910.97392.0518

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 114.024 O2 C1 H3 106.344
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability