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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: CCSD(T)/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(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-114.164687
Energy at 298.15K-114.166096
HF Energy-113.808978
Nuclear repulsion energy30.321460
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(T)/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' 3714 3575        
2 A' 2848 2741        
3 A' 1500 1444        
4 A' 1276 1228        
5 A' 1207 1161        
6 A" 1075 1035        

Unscaled Zero Point Vibrational Energy (zpe) 5809.6 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 5591.7 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(T)/aug-cc-pVDZ
ABC
9.36514 1.18557 1.05235

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.754 0.000
O2 0.011 -0.579 0.000
H3 -1.095 0.981 0.000
H4 0.939 -0.871 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.33301.12971.8708
O21.33301.91280.9725
H31.12971.91282.7510
H41.87080.97252.7510

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.442 O2 C1 H3 101.600
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCSD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-114.157106
Energy at 298.15K-114.158500
HF Energy-113.800535
Nuclear repulsion energy30.217103
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(T)/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' 3604 3468        
2 A' 2756 2652        
3 A' 1456 1402        
4 A' 1277 1229        
5 A' 1218 1172        
6 A" 989 952        

Unscaled Zero Point Vibrational Energy (zpe) 5649.9 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 5438.0 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(T)/aug-cc-pVDZ
ABC
9.04181 1.17920 1.04316

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.124 0.755 0.000
O2 0.124 -0.578 0.000
H3 -0.968 1.071 0.000
H4 -0.769 -0.974 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.33251.13661.9458
O21.33251.97780.9772
H31.13661.97782.0549
H41.94580.97722.0549

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 113.908 O2 C1 H3 106.178
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability