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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: CID/3-21G

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 CID/3-21G
 hartrees
Energy at 0K-113.340262
Energy at 298.15K-113.341677
HF Energy-113.145339
Nuclear repulsion energy29.942111
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 CID/3-21G
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' 3567 3323 33.19      
2 A' 2799 2607 161.46      
3 A' 1540 1435 37.36      
4 A' 1292 1204 7.01      
5 A' 1225 1141 220.59      
6 A" 1106 1031 153.36      

Unscaled Zero Point Vibrational Energy (zpe) 5764.2 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 5370.0 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 CID/3-21G
ABC
9.53041 1.14634 1.02326

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.767 0.000
O2 0.011 -0.584 0.000
H3 -1.088 1.002 0.000
H4 0.936 -0.929 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.35111.12351.9317
O21.35111.92930.9871
H31.12351.92932.7969
H41.93170.98712.7969

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 110.444 O2 C1 H3 102.062
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CID/3-21G
 hartrees
Energy at 0K-113.331226
Energy at 298.15K-113.332630
HF Energy-113.135351
Nuclear repulsion energy29.921191
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 CID/3-21G
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' 3417 3184 5.11      
2 A' 2641 2461 231.15      
3 A' 1506 1403 69.43      
4 A' 1305 1216 37.83      
5 A' 1243 1158 106.30      
6 A" 1031 960 58.24      

Unscaled Zero Point Vibrational Energy (zpe) 5571.5 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 5190.4 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 CID/3-21G
ABC
9.25543 1.14800 1.02132

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.122 0.763 0.000
O2 0.122 -0.579 0.000
H3 -0.963 1.102 0.000
H4 -0.752 -1.052 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.34151.13702.0146
O21.34152.00040.9943
H31.13702.00042.1643
H42.01460.99432.1643

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 118.437 O2 C1 H3 107.345
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability