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All results from a given calculation for HOCO (Hydrocarboxyl radical)

using model chemistry: HSEh1PBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS cis 1A'
1 2 yes CS trans 1A'

Conformer 1 (CS cis)

Jump to S1C2
Energy calculated at HSEh1PBE/6-31G**
 hartrees
Energy at 0K-188.909534
Energy at 298.15K-188.910644
HF Energy-188.909534
Nuclear repulsion energy63.255001
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 HSEh1PBE/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' 3662 3494 20.59      
2 A' 1925 1837 306.50      
3 A' 1316 1256 0.29      
4 A' 1125 1074 161.75      
5 A' 602 575 38.40      
6 A" 620 592 125.76      

Unscaled Zero Point Vibrational Energy (zpe) 4625.6 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 4414.2 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 HSEh1PBE/6-31G**
ABC
4.69823 0.39447 0.36392

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.443 0.000
O2 -1.061 -0.344 0.000
O3 1.157 0.171 0.000
H4 -0.764 -1.274 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.32161.18831.8790
O21.32162.27740.9758
O31.18832.27742.4036
H41.87900.97582.4036

picture of Hydrocarboxyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 108.818 O2 C1 O3 130.213
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.448      
2 O -0.435      
3 O -0.348      
4 H 0.335      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.034 -1.724 0.000 2.010
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.814 0.690 0.000
y 0.690 -13.449 0.000
z 0.000 0.000 -15.772
Traceless
 xyz
x -5.204 0.690 0.000
y 0.690 4.344 0.000
z 0.000 0.000 0.860
Polar
3z2-r21.720
x2-y2-6.365
xy0.690
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.056 0.229 0.000
y 0.229 2.421 0.000
z 0.000 0.000 1.386


<r2> (average value of r2) Å2
<r2> 34.495
(<r2>)1/2 5.873

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at HSEh1PBE/6-31G**
 hartrees
Energy at 0K-188.911021
Energy at 298.15K-188.912102
HF Energy-188.911021
Nuclear repulsion energy62.960340
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 HSEh1PBE/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' 3865 3689 111.99      
2 A' 1957 1868 212.07      
3 A' 1258 1200 297.61      
4 A' 1138 1086 26.64      
5 A' 623 595 4.15      
6 A" 556 531 97.31      

Unscaled Zero Point Vibrational Energy (zpe) 4698.6 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 4483.9 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 HSEh1PBE/6-31G**
ABC
5.52245 0.38344 0.35854

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.410 0.000
O2 -0.946 -0.536 0.000
O3 1.171 0.241 0.000
H4 -1.807 -0.099 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33751.18361.8769
O21.33752.25500.9652
O31.18362.25502.9973
H41.87690.96522.9973

picture of Hydrocarboxyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 108.110 O2 C1 O3 126.774
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.404      
2 O -0.429      
3 O -0.331      
4 H 0.357      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.097 0.429 0.000 3.126
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.464 -1.127 0.000
y -1.127 -17.400 0.000
z 0.000 0.000 -15.800
Traceless
 xyz
x 3.136 -1.127 0.000
y -1.127 -2.768 0.000
z 0.000 0.000 -0.368
Polar
3z2-r2-0.735
x2-y23.936
xy-1.127
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.559 0.175 0.000
y 0.175 1.881 0.000
z 0.000 0.000 1.406


<r2> (average value of r2) Å2
<r2> 34.890
(<r2>)1/2 5.907