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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: CCSD(T)/aug-cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-114.261193
Energy at 298.15K-114.262605
HF Energy-113.837431
Nuclear repulsion energy30.609128
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-pVTZ
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' 3737 3625        
2 A' 2862 2776        
3 A' 1507 1462        
4 A' 1313 1274        
5 A' 1211 1174        
6 A" 1081 1048        

Unscaled Zero Point Vibrational Energy (zpe) 5855.3 cm-1
Scaled (by 0.9699) Zero Point Vibrational Energy (zpe) 5679.1 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)/aug-cc-pVTZ
ABC
9.60926 1.20755 1.07274

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

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 -1.079 0.979 0.000
H4 0.932 -0.868 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31951.11391.8585
O21.31951.89640.9678
H31.11391.89642.7304
H41.85850.96782.7304

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.699 O2 C1 H3 102.067
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCSD(T)/aug-cc-pVTZ
 hartrees
Energy at 0K-114.253629
Energy at 298.15K-114.255029
HF Energy-113.829121
Nuclear repulsion energy30.514751
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-pVTZ
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' 3630 3520        
2 A' 2773 2690        
3 A' 1471 1427        
4 A' 1315 1276        
5 A' 1227 1190        
6 A" 1002 972        

Unscaled Zero Point Vibrational Energy (zpe) 5709.0 cm-1
Scaled (by 0.9699) Zero Point Vibrational Energy (zpe) 5537.2 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)/aug-cc-pVTZ
ABC
9.26563 1.20233 1.06423

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.123 0.747 0.000
O2 0.123 -0.572 0.000
H3 -0.952 1.066 0.000
H4 -0.765 -0.969 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31861.12071.9316
O21.31861.95900.9723
H31.12071.95902.0438
H41.93160.97232.0438

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 114.107 O2 C1 H3 106.569
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability