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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: MP4/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 MP4/aug-cc-pVTZ
 hartrees
Energy at 0K-114.261905
Energy at 298.15K-114.263317
HF Energy-113.837131
Nuclear repulsion energy30.554982
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 MP4/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' 3719 3619        
2 A' 2869 2792        
3 A' 1503 1462        
4 A' 1294 1260        
5 A' 1202 1170        
6 A" 1094 1065        

Unscaled Zero Point Vibrational Energy (zpe) 5840.4 cm-1
Scaled (by 0.9732) Zero Point Vibrational Energy (zpe) 5683.9 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 MP4/aug-cc-pVTZ
ABC
9.55870 1.20346 1.06889

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.010 0.748 0.000
O2 0.010 -0.575 0.000
H3 -1.080 0.977 0.000
H4 0.935 -0.864 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.32281.11371.8585
O21.32281.89610.9693
H31.11371.89612.7292
H41.85850.96932.7292

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.353 O2 C1 H3 101.848
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP4/aug-cc-pVTZ
 hartrees
Energy at 0K-114.254103
Energy at 298.15K-114.255505
HF Energy-113.828896
Nuclear repulsion energy30.467563
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 MP4/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' 3620 3523        
2 A' 2778 2704        
3 A' 1467 1428        
4 A' 1304 1269        
5 A' 1217 1185        
6 A" 1019 992        

Unscaled Zero Point Vibrational Energy (zpe) 5702.7 cm-1
Scaled (by 0.9732) Zero Point Vibrational Energy (zpe) 5549.8 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 MP4/aug-cc-pVTZ
ABC
9.23160 1.19862 1.06087

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.123 0.748 0.000
O2 0.123 -0.573 0.000
H3 -0.952 1.064 0.000
H4 -0.767 -0.968 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.32141.12071.9329
O21.32141.95880.9735
H31.12071.95882.0400
H41.93290.97352.0400

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 113.893 O2 C1 H3 106.372
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability