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: TPSSh/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 TPSSh/cc-pVTZ
 hartrees
Energy at 0K-114.462189
Energy at 298.15K-114.463602
HF Energy-114.462189
Nuclear repulsion energy30.627104
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 TPSSh/cc-pVTZ
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' 3669 3553 58.84      
2 A' 2823 2734 158.59      
3 A' 1512 1464 20.62      
4 A' 1307 1266 56.49      
5 A' 1206 1168 145.22      
6 A" 1099 1064 115.43      

Unscaled Zero Point Vibrational Energy (zpe) 5807.9 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 5623.8 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 TPSSh/cc-pVTZ
ABC
9.56772 1.21167 1.07547

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.004 0.729 0.000
O2 -0.004 -0.579 0.000
H3 0.969 1.127 0.000
H4 -0.918 -0.865 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30821.05101.8373
O21.30821.96450.9579
H31.05101.96452.7440
H41.83730.95792.7440

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.331 O2 C1 H3 112.291
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.160      
2 O -0.144      
3 H 0.056      
4 H 0.249      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.191 -1.662 0.000 1.673
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.881 -0.468 0.000
y -0.468 2.876 0.000
z 0.000 0.000 1.903


<r2> (average value of r2) Å2
<r2> 17.356
(<r2>)1/2 4.166

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at TPSSh/cc-pVTZ
 hartrees
Energy at 0K-114.455140
Energy at 298.15K-114.456544
HF Energy-114.455140
Nuclear repulsion energy30.571635
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 TPSSh/cc-pVTZ
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' 3491 3380 22.51      
2 A' 2734 2647 224.67      
3 A' 1476 1429 49.61      
4 A' 1321 1279 51.53      
5 A' 1208 1170 34.71      
6 A" 1031 998 27.33      

Unscaled Zero Point Vibrational Energy (zpe) 5630.3 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 5451.8 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 TPSSh/cc-pVTZ
ABC
9.28946 1.20969 1.07031

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.116 0.736 0.000
O2 0.116 -0.574 0.000
H3 -0.860 1.147 0.000
H4 -0.770 -0.968 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.30971.05911.9206
O21.30971.97870.9698
H31.05911.97872.1175
H41.92060.96982.1175

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 113.987 O2 C1 H3 112.867
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.099      
2 O -0.134      
3 H 0.024      
4 H 0.209      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.883 -1.681 0.000 3.337
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.840 0.030 0.000
y 0.030 3.331 0.000
z 0.000 0.000 1.899


<r2> (average value of r2) Å2
<r2> 17.510
(<r2>)1/2 4.184