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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: MP2=FULL/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-114.244721
Energy at 298.15K-114.246144
HF Energy-113.835598
Nuclear repulsion energy30.858975
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-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3779 3588 104.91      
2 A' 2961 2811 127.91      
3 A' 1526 1449 15.12      
4 A' 1372 1302 70.15      
5 A' 1219 1157 140.12      
6 A" 1132 1075 117.95      

Unscaled Zero Point Vibrational Energy (zpe) 5994.4 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 5691.1 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-pVTZ
ABC
9.74413 1.22908 1.09142

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.010 0.739 0.000
O2 0.010 -0.569 0.000
H3 -1.066 0.974 0.000
H4 0.932 -0.854 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30801.10121.8408
O21.30801.88110.9653
H31.10121.88112.7083
H41.84080.96532.7083

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.175 O2 C1 H3 102.330
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-114.236924
Energy at 298.15K-114.238340
HF Energy-113.827646
Nuclear repulsion energy30.793636
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-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3675 3489 24.57      
2 A' 2875 2730 182.24      
3 A' 1501 1425 42.27      
4 A' 1378 1309 74.76      
5 A' 1244 1181 42.52      
6 A" 1062 1008 26.95      

Unscaled Zero Point Vibrational Energy (zpe) 5867.4 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 5570.5 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=FULL/cc-pVTZ
ABC
9.41762 1.22652 1.08519

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.122 0.739 0.000
O2 0.122 -0.566 0.000
H3 -0.939 1.059 0.000
H4 -0.765 -0.960 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30501.10771.9164
O21.30501.94080.9701
H31.10771.94082.0271
H41.91640.97012.0271

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 113.969 O2 C1 H3 106.824
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability