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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: MP2=FULL/6-31G**

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/6-31G**
 hartrees
Energy at 0K-114.096893
Energy at 298.15K-114.098316
HF Energy-113.790282
Nuclear repulsion energy30.620999
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/6-31G**
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' 3799 3550 75.14      
2 A' 2971 2776 161.96      
3 A' 1547 1445 25.39      
4 A' 1374 1284 69.98      
5 A' 1227 1146 136.39      
6 A" 1144 1069 124.04      

Unscaled Zero Point Vibrational Energy (zpe) 6030.4 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 5634.8 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/6-31G**
ABC
9.54744 1.21057 1.07434

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.010 0.747 0.000
O2 0.010 -0.573 0.000
H3 -1.078 0.964 0.000
H4 0.936 -0.860 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.32021.10981.8545
O21.32021.88390.9695
H31.10981.88392.7177
H41.85450.96952.7177

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.181 O2 C1 H3 101.304
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2=FULL/6-31G**
 hartrees
Energy at 0K-114.088224
Energy at 298.15K-114.089638
HF Energy-113.781750
Nuclear repulsion energy30.574356
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/6-31G**
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' 3685 3443 13.95      
2 A' 2870 2682 229.16      
3 A' 1515 1415 44.01      
4 A' 1381 1290 83.52      
5 A' 1260 1178 41.41      
6 A" 1062 992 42.94      

Unscaled Zero Point Vibrational Energy (zpe) 5886.3 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 5500.2 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/6-31G**
ABC
9.32336 1.20765 1.06916

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.122 0.746 0.000
O2 0.122 -0.569 0.000
H3 -0.951 1.058 0.000
H4 -0.760 -0.983 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31471.11711.9405
O21.31471.94860.9742
H31.11711.94862.0494
H41.94050.97422.0494

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 115.133 O2 C1 H3 106.217
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability