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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: CCSD(T)/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(T)/cc-pVQZ
 hartrees
Energy at 0K-114.286473
Energy at 298.15K-114.287887
HF Energy-113.844257
Nuclear repulsion energy30.715678
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)/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' 3761 3647        
2 A' 2869 2782        
3 A' 1513 1467        
4 A' 1327 1287        
5 A' 1218 1181        
6 A" 1090 1057        

Unscaled Zero Point Vibrational Energy (zpe) 5888.6 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 5710.2 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 CCSD(T)/cc-pVQZ
ABC
9.65488 1.21662 1.08047

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.743 0.000
O2 0.011 -0.571 0.000
H3 -1.077 0.977 0.000
H4 0.930 -0.864 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31431.11261.8511
O21.31431.89250.9646
H31.11261.89252.7235
H41.85110.96462.7235

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.645 O2 C1 H3 102.168
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCSD(T)/cc-pVQZ
 hartrees
Energy at 0K-114.279004
Energy at 298.15K-114.280406
HF Energy-113.836136
Nuclear repulsion energy30.627319
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)/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' 3654 3544        
2 A' 2777 2693        
3 A' 1479 1434        
4 A' 1329 1289        
5 A' 1231 1194        
6 A" 1008 977        

Unscaled Zero Point Vibrational Energy (zpe) 5738.6 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 5564.7 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)/cc-pVQZ
ABC
9.30960 1.21207 1.07244

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.122 0.743 0.000
O2 0.122 -0.570 0.000
H3 -0.950 1.064 0.000
H4 -0.762 -0.966 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31301.11951.9245
O21.31301.95410.9690
H31.11951.95412.0384
H41.92450.96902.0384

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 114.143 O2 C1 H3 106.630
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability