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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: MP2/STO-3G

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/STO-3G
 hartrees
Energy at 0K-112.369237
Energy at 298.15K-112.370648
HF Energy-112.276510
Nuclear repulsion energy29.822789
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/STO-3G
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' 3828 3338 11.83      
2 A' 3135 2734 90.10      
3 A' 1689 1473 28.28      
4 A' 1494 1303 24.34      
5 A' 1334 1163 71.31      
6 A" 1191 1038 49.23      

Unscaled Zero Point Vibrational Energy (zpe) 6335.4 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 5523.9 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 MP2/STO-3G
ABC
8.56090 1.16855 1.02820

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.010 0.765 0.000
O2 0.010 -0.584 0.000
H3 -1.128 0.940 0.000
H4 0.992 -0.859 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.34941.15111.8978
O21.34941.90221.0195
H31.15111.90222.7801
H41.89781.01952.7801

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 105.631 O2 C1 H3 98.745
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2/STO-3G
 hartrees
Energy at 0K-112.359886
Energy at 298.15K-112.361284
HF Energy-112.267491
Nuclear repulsion energy29.832229
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/STO-3G
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' 3716 3240 22.79      
2 A' 3082 2687 109.07      
3 A' 1661 1448 24.31      
4 A' 1497 1305 31.29      
5 A' 1351 1178 35.64      
6 A" 1103 961 24.05      

Unscaled Zero Point Vibrational Energy (zpe) 6204.2 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 5409.5 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/STO-3G
ABC
8.45274 1.16826 1.02640

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.128 0.760 0.000
O2 0.128 -0.580 0.000
H3 -0.985 1.061 0.000
H4 -0.813 -0.985 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.34011.15311.9829
O21.34011.98271.0251
H31.15311.98272.0528
H41.98291.02512.0528

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 113.265 O2 C1 H3 105.117
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability