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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: MP4/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 MP4/cc-pVDZ
 hartrees
Energy at 0K-114.134807
Energy at 298.15K-114.136224
HF Energy-113.798519
Nuclear repulsion energy30.402987
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/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' 3737 3613        
2 A' 2842 2748        
3 A' 1518 1468        
4 A' 1323 1279        
5 A' 1213 1173        
6 A" 1116 1079        

Unscaled Zero Point Vibrational Energy (zpe) 5873.9 cm-1
Scaled (by 0.9669) Zero Point Vibrational Energy (zpe) 5679.5 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 MP4/cc-pVDZ
ABC
9.21464 1.19837 1.06045

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.750 0.000
O2 0.011 -0.578 0.000
H3 -1.100 0.971 0.000
H4 0.947 -0.845 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.32841.13311.8499
O21.32841.90640.9736
H31.13311.90642.7369
H41.84990.97362.7369

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 105.923 O2 C1 H3 101.225
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP4/cc-pVDZ
 hartrees
Energy at 0K-114.127082
Energy at 298.15K-114.128486
HF Energy-113.790772
Nuclear repulsion energy30.364465
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/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' 3636 3516        
2 A' 2742 2651        
3 A' 1480 1431        
4 A' 1331 1287        
5 A' 1221 1180        
6 A" 1033 999        

Unscaled Zero Point Vibrational Energy (zpe) 5720.6 cm-1
Scaled (by 0.9669) Zero Point Vibrational Energy (zpe) 5531.3 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 MP4/cc-pVDZ
ABC
8.95532 1.19731 1.05611

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.125 0.748 0.000
O2 0.125 -0.575 0.000
H3 -0.972 1.065 0.000
H4 -0.774 -0.959 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.32301.14101.9295
O21.32301.97240.9776
H31.14101.97242.0337
H41.92950.97762.0337

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 113.158 O2 C1 H3 106.114
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability