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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-113.947309
Energy at 298.15K-113.948704
HF Energy-113.753600
Nuclear repulsion energy29.538289
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/LANL2DZ
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' 3637 3503 73.06      
2 A' 2905 2798 160.78      
3 A' 1490 1435 40.71      
4 A' 1193 1149 1.15      
5 A' 1160 1117 258.61      
6 A" 1104 1063 183.36      

Unscaled Zero Point Vibrational Energy (zpe) 5744.4 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 5532.4 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/LANL2DZ
ABC
9.54464 1.10490 0.99026

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.012 0.783 0.000
O2 0.012 -0.594 0.000
H3 -1.090 1.008 0.000
H4 0.929 -0.955 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.37741.12461.9656
O21.37741.94480.9858
H31.12461.94482.8164
H41.96560.98582.8164

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 111.478 O2 C1 H3 101.547
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2/LANL2DZ
 hartrees
Energy at 0K-113.936158
Energy at 298.15K-113.937543
HF Energy-113.741732
Nuclear repulsion energy29.457996
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/LANL2DZ
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' 3476 3347 1.48      
2 A' 2737 2636 257.55      
3 A' 1449 1395 83.00      
4 A' 1228 1183 8.81      
5 A' 1163 1120 146.69      
6 A" 1023 986 62.23      

Unscaled Zero Point Vibrational Energy (zpe) 5537.7 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 5333.3 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 MP2/LANL2DZ
ABC
9.28372 1.10115 0.98439

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.122 0.782 0.000
O2 0.122 -0.589 0.000
H3 -0.972 1.104 0.000
H4 -0.737 -1.088 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.37081.14042.0579
O21.37082.01510.9937
H31.14042.01512.2039
H42.05790.99372.2039

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 120.157 O2 C1 H3 106.368
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability