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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: CCSD(T)/TZVP

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)/TZVP
 hartrees
Energy at 0K-114.188331
Energy at 298.15K-114.189748
HF Energy-113.832172
Nuclear repulsion energy30.615166
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)/TZVP
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' 3749 3608        
2 A' 2886 2778        
3 A' 1525 1468        
4 A' 1327 1277        
5 A' 1219 1173        
6 A" 1103 1062        

Unscaled Zero Point Vibrational Energy (zpe) 5904.1 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 5682.7 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)/TZVP
ABC
9.57750 1.20934 1.07376

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.010 0.746 0.000
O2 0.010 -0.573 0.000
H3 -1.080 0.976 0.000
H4 0.934 -0.866 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31881.11441.8578
O21.31881.89430.9692
H31.11441.89432.7295
H41.85780.96922.7295

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.596 O2 C1 H3 101.921
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCSD(T)/TZVP
 hartrees
Energy at 0K-114.178671
Energy at 298.15K-114.180069
HF Energy-113.822097
Nuclear repulsion energy30.521516
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)/TZVP
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' 3616 3480        
2 A' 2780 2676        
3 A' 1483 1427        
4 A' 1321 1271        
5 A' 1207 1162        
6 A" 1004 966        

Unscaled Zero Point Vibrational Energy (zpe) 5705.2 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 5491.2 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)/TZVP
ABC
9.23191 1.20477 1.06570

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.123 0.747 0.000
O2 0.123 -0.571 0.000
H3 -0.955 1.059 0.000
H4 -0.764 -0.975 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31721.12231.9367
O21.31721.95400.9746
H31.12231.95402.0434
H41.93670.97462.0434

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 114.528 O2 C1 H3 106.173
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability