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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: CCSD=FULL/cc-pVQZ

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=FULL/cc-pVQZ
 hartrees
Energy at 0K-114.327517
Energy at 298.15K-114.328938
HF Energy-113.844998
Nuclear repulsion energy30.931704
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=FULL/cc-pVQZ
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' 3819 3819 91.23      
2 A' 2913 2913 123.84      
3 A' 1532 1532 23.35      
4 A' 1372 1372 89.72      
5 A' 1242 1242 138.39      
6 A" 1104 1104 119.34      

Unscaled Zero Point Vibrational Energy (zpe) 5990.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5990.7 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=FULL/cc-pVQZ
ABC
9.83605 1.23336 1.09594

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.737 0.000
O2 0.011 -0.567 0.000
H3 -1.069 0.979 0.000
H4 0.922 -0.867 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30331.10661.8444
O21.30331.88540.9596
H31.10661.88542.7151
H41.84440.95962.7151

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 108.230 O2 C1 H3 102.643
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCSD=FULL/cc-pVQZ
 hartrees
Energy at 0K-114.319778
Energy at 298.15K-114.321189
HF Energy-113.836789
Nuclear repulsion energy30.838029
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=FULL/cc-pVQZ
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' 3722 3722 24.45      
2 A' 2823 2823 177.99      
3 A' 1504 1504 42.80      
4 A' 1369 1369 98.23      
5 A' 1266 1266 42.71      
6 A" 1026 1026 28.12      

Unscaled Zero Point Vibrational Energy (zpe) 5855.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5855.5 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=FULL/cc-pVQZ
ABC
9.44637 1.22903 1.08753

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.121 0.737 0.000
O2 0.121 -0.565 0.000
H3 -0.944 1.061 0.000
H4 -0.756 -0.964 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30281.11351.9144
O21.30281.94440.9636
H31.11351.94442.0340
H41.91440.96362.0340

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 114.448 O2 C1 H3 106.903
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability