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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: CCSD(T)=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(T)=FULL/cc-pVQZ
 hartrees
Energy at 0K-114.345393
Energy at 298.15K-114.346810
HF Energy-113.844566
Nuclear repulsion energy30.805158
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)=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' 3767 3637        
2 A' 2883 2784        
3 A' 1518 1465        
4 A' 1341 1294        
5 A' 1223 1181        
6 A" 1096 1058        

Unscaled Zero Point Vibrational Energy (zpe) 5913.6 cm-1
Scaled (by 0.9656) Zero Point Vibrational Energy (zpe) 5710.1 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)=FULL/cc-pVQZ
ABC
9.72145 1.22383 1.08699

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.010 0.740 0.000
O2 0.010 -0.569 0.000
H3 -1.073 0.977 0.000
H4 0.928 -0.863 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30991.10931.8475
O21.30991.88840.9631
H31.10931.88842.7186
H41.84750.96312.7186

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.767 O2 C1 H3 102.318
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCSD(T)=FULL/cc-pVQZ
 hartrees
Energy at 0K-114.337844
Energy at 298.15K-114.339249
HF Energy-113.836424
Nuclear repulsion energy30.714358
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)=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' 3656 3530        
2 A' 2792 2696        
3 A' 1486 1435        
4 A' 1342 1296        
5 A' 1242 1199        
6 A" 1018 983        

Unscaled Zero Point Vibrational Energy (zpe) 5768.3 cm-1
Scaled (by 0.9656) Zero Point Vibrational Energy (zpe) 5569.9 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(T)=FULL/cc-pVQZ
ABC
9.37006 1.21922 1.07884

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.122 0.741 0.000
O2 0.122 -0.568 0.000
H3 -0.946 1.064 0.000
H4 -0.760 -0.965 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30851.11621.9206
O21.30851.95020.9677
H31.11621.95022.0375
H41.92060.96772.0375

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 114.248 O2 C1 H3 106.823
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability