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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: MP2=FULL/cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-114.107981
Energy at 298.15K-114.109405
HF Energy-113.799277
Nuclear repulsion energy30.589757
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-pVDZ
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' 3759 3573 101.26      
2 A' 2927 2781 173.85      
3 A' 1530 1454 18.35      
4 A' 1376 1308 70.25      
5 A' 1223 1163 125.99      
6 A" 1136 1079 118.92      

Unscaled Zero Point Vibrational Energy (zpe) 5975.0 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 5678.6 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-pVDZ
ABC
9.34956 1.21383 1.07435

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.010 0.744 0.000
O2 0.010 -0.574 0.000
H3 -1.091 0.971 0.000
H4 0.944 -0.844 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31851.12451.8430
O21.31851.89750.9723
H31.12451.89752.7274
H41.84300.97232.7274

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 106.138 O2 C1 H3 101.626
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2=FULL/cc-pVDZ
 hartrees
Energy at 0K-114.099975
Energy at 298.15K-114.101388
HF Energy-113.791458
Nuclear repulsion energy30.551718
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-pVDZ
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' 3654 3473 24.54      
2 A' 2829 2689 241.83      
3 A' 1495 1421 37.23      
4 A' 1382 1313 86.49      
5 A' 1236 1175 29.38      
6 A" 1055 1002 33.03      

Unscaled Zero Point Vibrational Energy (zpe) 5825.7 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 5536.8 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/cc-pVDZ
ABC
9.08712 1.21270 1.06991

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.124 0.743 0.000
O2 0.124 -0.570 0.000
H3 -0.961 1.066 0.000
H4 -0.772 -0.958 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31301.13211.9227
O21.31301.96340.9766
H31.13211.96342.0332
H41.92270.97662.0332

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 113.408 O2 C1 H3 106.601
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability