return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: CISD/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 CISD/6-31G
 hartrees
Energy at 0K-113.928063
Energy at 298.15K-113.929468
HF Energy-113.727347
Nuclear repulsion energy29.890884
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 CISD/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' 3694 3464 53.12      
2 A' 2863 2685 160.71      
3 A' 1524 1429 42.01      
4 A' 1243 1165 4.61      
5 A' 1209 1134 250.68      
6 A" 1093 1025 179.94      

Unscaled Zero Point Vibrational Energy (zpe) 5812.2 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 5450.7 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 CISD/6-31G
ABC
9.75529 1.13276 1.01491

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.012 0.772 0.000
O2 0.012 -0.586 0.000
H3 -1.085 1.007 0.000
H4 0.915 -0.952 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.35781.12201.9463
O21.35781.93410.9743
H31.12201.93412.7996
H41.94630.97432.7996

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 112.090 O2 C1 H3 102.088
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CISD/6-31G
 hartrees
Energy at 0K-113.917733
Energy at 298.15K-113.919127
HF Energy-113.715977
Nuclear repulsion energy29.816308
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 CISD/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' 3525 3305 2.95      
2 A' 2689 2522 249.29      
3 A' 1479 1387 76.49      
4 A' 1265 1186 14.51      
5 A' 1220 1144 142.88      
6 A" 1010 947 71.94      

Unscaled Zero Point Vibrational Energy (zpe) 5593.5 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 5245.5 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 CISD/6-31G
ABC
9.42450 1.13070 1.00958

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.121 0.771 0.000
O2 0.121 -0.581 0.000
H3 -0.968 1.099 0.000
H4 -0.728 -1.074 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.35151.13732.0310
O21.35152.00180.9823
H31.13732.00182.1862
H42.03100.98232.1862

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 120.150 O2 C1 H3 106.773
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability