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 HOCO (Hydrocarboxyl radical)

using model chemistry: B3LYP/SDD

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 B3LYP/SDD
 hartrees
Energy at 0K-189.059491
Energy at 298.15K-189.060497
HF Energy-189.059491
Nuclear repulsion energy61.426444
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 B3LYP/SDD
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' 3462 3328 4.42      
2 A' 1732 1665 323.48      
3 A' 1243 1195 2.49      
4 A' 978 940 183.67      
5 A' 549 528 40.49      
6 A" 558 536 180.19      

Unscaled Zero Point Vibrational Energy (zpe) 4260.9 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 4096.0 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 B3LYP/SDD
ABC
4.60922 0.36846 0.34119

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.448 0.000
O2 -1.085 -0.368 0.000
O3 1.195 0.199 0.000
H4 -0.883 -1.341 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.35731.22081.9952
O21.35732.34900.9938
O31.22082.34902.5865
H41.99520.99382.5865

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 115.260 O2 C1 O3 131.261
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.221      
2 O -0.399      
3 O -0.197      
4 H 0.375      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.988 -2.178 0.000 2.392
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.679 1.086 0.000
y 1.086 -13.588 0.000
z 0.000 0.000 -16.223
Traceless
 xyz
x -6.774 1.086 0.000
y 1.086 5.363 0.000
z 0.000 0.000 1.411
Polar
3z2-r22.822
x2-y2-8.091
xy1.086
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.381 0.302 0.000
y 0.302 2.592 0.000
z 0.000 0.000 1.323


<r2> (average value of r2) Å2
<r2> 36.738
(<r2>)1/2 6.061

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B3LYP/SDD
 hartrees
Energy at 0K-189.064961
Energy at 298.15K-189.065969
HF Energy-189.064961
Nuclear repulsion energy61.228540
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 B3LYP/SDD
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' 3702 3559 89.67      
2 A' 1788 1719 196.00      
3 A' 1162 1117 222.16      
4 A' 1005 966 116.41      
5 A' 579 557 8.63      
6 A" 535 514 149.14      

Unscaled Zero Point Vibrational Energy (zpe) 4385.5 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 4215.8 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 B3LYP/SDD
ABC
5.35860 0.36056 0.33783

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.423 0.000
O2 -0.969 -0.560 0.000
O3 1.203 0.265 0.000
H4 -1.871 -0.174 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.37981.21291.9636
O21.37982.32260.9811
O31.21292.32263.1044
H41.96360.98113.1044

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 111.431 O2 C1 O3 127.113
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.156      
2 O -0.393      
3 O -0.165      
4 H 0.401      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.369 0.528 0.000 3.410
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.923 -1.202 0.000
y -1.202 -18.535 0.000
z 0.000 0.000 -16.265
Traceless
 xyz
x 3.477 -1.202 0.000
y -1.202 -3.441 0.000
z 0.000 0.000 -0.036
Polar
3z2-r2-0.071
x2-y24.612
xy-1.202
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.934 0.246 0.000
y 0.246 2.033 0.000
z 0.000 0.000 1.341


<r2> (average value of r2) Å2
<r2> 36.891
(<r2>)1/2 6.074