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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: CCSD=FULL/aug-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=FULL/aug-cc-pVQZ
 hartrees
Energy at 0K-114.331861
Energy at 298.15K-114.333281
HF Energy-113.845810
Nuclear repulsion energy30.925703
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=FULL/aug-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' 3816 3816 92.02      
2 A' 2915 2915 116.97      
3 A' 1528 1528 24.72      
4 A' 1368 1368 97.86      
5 A' 1238 1238 138.38      
6 A" 1100 1100 116.95      

Unscaled Zero Point Vibrational Energy (zpe) 5982.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5982.3 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=FULL/aug-cc-pVQZ
ABC
9.84828 1.23264 1.09552

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.737 0.000
O2 0.011 -0.566 0.000
H3 -1.069 0.980 0.000
H4 0.922 -0.870 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30321.10681.8470
O21.30321.88630.9603
H31.10681.88632.7178
H41.84700.96032.7178

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 108.421 O2 C1 H3 102.715
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCSD=FULL/aug-cc-pVQZ
 hartrees
Energy at 0K-114.323964
Energy at 298.15K-114.325373
HF Energy-113.837415
Nuclear repulsion energy30.825744
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=FULL/aug-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' 3719 3719 24.58      
2 A' 2826 2826 172.10      
3 A' 1498 1498 42.91      
4 A' 1364 1364 102.77      
5 A' 1261 1261 43.86      
6 A" 1022 1022 27.18      

Unscaled Zero Point Vibrational Energy (zpe) 5844.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5844.5 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=FULL/aug-cc-pVQZ
ABC
9.45580 1.22767 1.08659

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.121 0.738 0.000
O2 0.121 -0.565 0.000
H3 -0.944 1.063 0.000
H4 -0.755 -0.967 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30301.11371.9170
O21.30301.94600.9643
H31.11371.94602.0392
H41.91700.96432.0392

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 114.624 O2 C1 H3 107.005
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability