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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVQZ
 hartrees
Energy at 0K-114.312621
Energy at 298.15K-114.314043
HF Energy-113.844751
Nuclear repulsion energy30.910628
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/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' 3773 3612 109.54      
2 A' 2964 2837 116.09      
3 A' 1522 1457 15.80      
4 A' 1368 1309 74.95      
5 A' 1222 1170 142.47      
6 A" 1127 1079 116.69      

Unscaled Zero Point Vibrational Energy (zpe) 5988.1 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 5731.2 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/cc-pVQZ
ABC
9.78389 1.23325 1.09520

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.010 0.737 0.000
O2 0.010 -0.567 0.000
H3 -1.067 0.975 0.000
H4 0.928 -0.859 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30471.10291.8415
O21.30471.88140.9636
H31.10291.88142.7102
H41.84150.96362.7102

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.602 O2 C1 H3 102.465
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2=FULL/cc-pVQZ
 hartrees
Energy at 0K-114.304603
Energy at 298.15K-114.306016
HF Energy-113.836619
Nuclear repulsion energy30.826197
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/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' 3669 3512 27.12      
2 A' 2875 2752 170.00      
3 A' 1495 1431 42.92      
4 A' 1371 1312 78.02      
5 A' 1244 1191 45.02      
6 A" 1055 1009 26.81      

Unscaled Zero Point Vibrational Energy (zpe) 5854.3 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 5603.2 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/cc-pVQZ
ABC
9.43780 1.22905 1.08744

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.122 0.738 0.000
O2 0.122 -0.565 0.000
H3 -0.940 1.060 0.000
H4 -0.761 -0.963 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30301.10961.9164
O21.30301.94150.9682
H31.10961.94152.0316
H41.91640.96822.0316

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 114.279 O2 C1 H3 106.905
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability