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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: MP2=FULL/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 MP2=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-114.258931
Energy at 298.15K-114.260352
HF Energy-113.838147
Nuclear repulsion energy30.862239
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 MP2=FULL/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' 3766 3583 107.54      
2 A' 2978 2833 108.80      
3 A' 1521 1447 17.06      
4 A' 1358 1292 83.81      
5 A' 1215 1156 142.58      
6 A" 1122 1068 113.20      

Unscaled Zero Point Vibrational Energy (zpe) 5980.1 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 5689.5 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 MP2=FULL/aug-cc-pVTZ
ABC
9.79394 1.22833 1.09144

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.010 0.739 0.000
O2 0.010 -0.568 0.000
H3 -1.065 0.976 0.000
H4 0.930 -0.862 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30731.10051.8468
O21.30731.88160.9657
H31.10051.88162.7127
H41.84680.96572.7127

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.725 O2 C1 H3 102.449
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-114.250875
Energy at 298.15K-114.252287
HF Energy-113.829830
Nuclear repulsion energy30.770545
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 MP2=FULL/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' 3661 3483 25.70      
2 A' 2892 2752 162.94      
3 A' 1491 1419 43.08      
4 A' 1362 1296 81.24      
5 A' 1241 1181 47.41      
6 A" 1048 997 25.03      

Unscaled Zero Point Vibrational Energy (zpe) 5848.0 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 5563.8 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 MP2=FULL/aug-cc-pVTZ
ABC
9.44436 1.22344 1.08313

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.121 0.739 0.000
O2 0.121 -0.567 0.000
H3 -0.938 1.062 0.000
H4 -0.763 -0.966 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30611.10721.9209
O21.30611.94250.9704
H31.10721.94252.0349
H41.92090.97042.0349

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 114.285 O2 C1 H3 106.917
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability