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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: CCSD(T)/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 CCSD(T)/6-31G*
 hartrees
Energy at 0K-114.099662
Energy at 298.15K-114.101075
HF Energy-113.781411
Nuclear repulsion energy30.378277
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 CCSD(T)/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' 3640 3502        
2 A' 2839 2731        
3 A' 1536 1478        
4 A' 1329 1279        
5 A' 1227 1181        
6 A" 1100 1058        

Unscaled Zero Point Vibrational Energy (zpe) 5835.2 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 5614.1 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 CCSD(T)/6-31G*
ABC
9.35380 1.19334 1.05832

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.010 0.752 0.000
O2 0.010 -0.577 0.000
H3 -1.091 0.970 0.000
H4 0.945 -0.870 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.32931.12281.8721
O21.32931.89930.9792
H31.12281.89932.7443
H41.87210.97922.7443

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.413 O2 C1 H3 101.197
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCSD(T)/6-31G*
 hartrees
Energy at 0K-114.091279
Energy at 298.15K-114.092681
HF Energy-113.772513
Nuclear repulsion energy30.322924
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 CCSD(T)/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' 3490 3358        
2 A' 2732 2629        
3 A' 1493 1437        
4 A' 1337 1287        
5 A' 1256 1208        
6 A" 1016 978        

Unscaled Zero Point Vibrational Energy (zpe) 5661.9 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 5447.3 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 CCSD(T)/6-31G*
ABC
9.13588 1.18976 1.05267

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.123 0.751 0.000
O2 0.123 -0.572 0.000
H3 -0.961 1.070 0.000
H4 -0.766 -0.996 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.32341.13071.9608
O21.32341.96810.9854
H31.13071.96812.0752
H41.96080.98542.0752

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 115.483 O2 C1 H3 106.369
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability