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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: CCSD/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-114.126735
Energy at 298.15K-114.128154
HF Energy-113.799161
Nuclear repulsion energy30.523874
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/cc-pVDZ
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' 3768 3569 78.15      
2 A' 2858 2707 181.82      
3 A' 1532 1452 27.44      
4 A' 1359 1287 78.07      
5 A' 1234 1169 122.82      
6 A" 1104 1045 117.50      

Unscaled Zero Point Vibrational Energy (zpe) 5927.2 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 5614.8 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/cc-pVDZ
ABC
9.32293 1.20767 1.06917

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.746 0.000
O2 0.011 -0.575 0.000
H3 -1.097 0.974 0.000
H4 0.942 -0.853 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.32121.13121.8504
O21.32121.90420.9712
H31.13121.90422.7374
H41.85040.97122.7374

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 106.652 O2 C1 H3 101.599
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCSD/cc-pVDZ
 hartrees
Energy at 0K-114.119217
Energy at 298.15K-114.120623
HF Energy-113.791251
Nuclear repulsion energy30.472953
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/cc-pVDZ
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' 3663 3470 19.64      
2 A' 2762 2617 247.80      
3 A' 1495 1416 36.66      
4 A' 1360 1289 100.20      
5 A' 1245 1179 27.29      
6 A" 1019 965 33.87      

Unscaled Zero Point Vibrational Energy (zpe) 5772.2 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 5468.0 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/cc-pVDZ
ABC
9.03734 1.20571 1.06378

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.124 0.745 0.000
O2 0.124 -0.572 0.000
H3 -0.968 1.068 0.000
H4 -0.770 -0.962 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31681.13881.9269
O21.31681.97050.9754
H31.13881.97052.0401
H41.92690.97542.0401

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 113.572 O2 C1 H3 106.505
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability