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 CH3CHOH (1-hydroxy-ethyl radical)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at PBEPBE/6-31G**
 hartrees
Energy at 0K-154.189974
Energy at 298.15K-154.194868
HF Energy-154.189974
Nuclear repulsion energy74.525294
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 PBEPBE/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 3725 3674 28.11      
2 A 3071 3029 41.19      
3 A 3054 3012 22.67      
4 A 3001 2959 20.22      
5 A 2893 2853 51.72      
6 A 1457 1437 1.52      
7 A 1430 1410 16.14      
8 A 1417 1397 10.04      
9 A 1354 1335 0.33      
10 A 1246 1229 120.97      
11 A 1196 1180 33.57      
12 A 1037 1023 25.37      
13 A 992 978 5.77      
14 A 914 901 9.79      
15 A 575 567 18.28      
16 A 399 393 14.46      
17 A 361 356 125.71      
18 A 179 177 2.65      

Unscaled Zero Point Vibrational Energy (zpe) 14149.8 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 13955.9 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 PBEPBE/6-31G**
ABC
1.51541 0.31262 0.27411

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.091 0.508 -0.101
C2 1.229 -0.163 0.011
O3 -1.173 -0.345 0.024
H4 -0.227 1.537 0.260
H5 1.294 -1.021 -0.682
H6 2.039 0.541 -0.238
H7 1.434 -0.561 1.029
H8 -1.984 0.193 -0.020

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.48591.38391.09902.14342.13462.17951.9203
C21.48592.40962.25301.10451.10141.11253.2329
O31.38392.40962.11992.65383.34242.80300.9737
H41.09902.25302.11993.12182.52492.78502.2295
H52.14341.10452.65383.12181.78671.77763.5572
H62.13461.10143.34242.52491.78671.78494.0434
H72.17951.11252.80302.78501.77761.78493.6542
H81.92033.23290.97372.22953.55724.04343.6542

picture of 1-hydroxy-ethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.823 C1 C2 H6 110.300
C1 C2 H7 113.242 C1 O3 H8 107.808
C2 C1 O3 114.158 C2 C1 H4 120.557
O3 C1 H4 116.785 H5 C2 H6 108.188
H5 C2 H7 106.613 H6 C2 H7 107.458
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.048      
2 C -0.394      
3 O -0.449      
4 H 0.086      
5 H 0.138      
6 H 0.127      
7 H 0.126      
8 H 0.318      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.652 1.100 0.254 1.304
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.902 -1.921 -0.035
y -1.921 -19.168 0.516
z -0.035 0.516 -20.108
Traceless
 xyz
x 4.736 -1.921 -0.035
y -1.921 -1.663 0.516
z -0.035 0.516 -3.073
Polar
3z2-r2-6.146
x2-y24.266
xy-1.921
xz-0.035
yz0.516


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.935 -0.158 0.062
y -0.158 3.951 0.044
z 0.062 0.044 2.899


<r2> (average value of r2) Å2
<r2> 51.716
(<r2>)1/2 7.191