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: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-154.318367
Energy at 298.15K-154.323328
HF Energy-154.318367
Nuclear repulsion energy74.927970
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 B3PW91/6-31G*
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 3805 3640 38.77      
2 A 3146 3010 57.30      
3 A 3131 2996 13.94      
4 A 3083 2949 21.11      
5 A 2987 2857 43.39      
6 A 1519 1453 1.56      
7 A 1493 1428 12.06      
8 A 1474 1411 17.34      
9 A 1413 1352 0.37      
10 A 1302 1245 145.90      
11 A 1235 1181 27.72      
12 A 1074 1028 26.40      
13 A 1036 991 7.89      
14 A 944 903 8.20      
15 A 608 582 18.27      
16 A 411 393 13.75      
17 A 364 349 141.04      
18 A 183 175 3.35      

Unscaled Zero Point Vibrational Energy (zpe) 14603.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 13971.1 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 B3PW91/6-31G*
ABC
1.53631 0.31525 0.27674

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.093 0.506 -0.103
C2 1.226 -0.163 0.011
O3 -1.167 -0.341 0.026
H4 -0.229 1.524 0.266
H5 1.291 -1.013 -0.679
H6 2.031 0.539 -0.233
H7 1.420 -0.555 1.024
H8 -1.979 0.179 -0.029

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.48351.37331.09162.13442.12802.16501.9153
C21.48352.39952.24221.09721.09501.10413.2238
O31.37332.39952.10142.64363.32622.78100.9666
H41.09162.24222.10143.10512.51472.76002.2268
H52.13441.09722.64363.10511.77651.76883.5411
H62.12801.09503.32622.51471.77651.77544.0309
H72.16501.10412.78102.76001.76881.77543.6338
H81.91533.22380.96662.22683.54114.03093.6338

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 110.703 C1 C2 H6 110.325
C1 C2 H7 112.759 C1 O3 H8 108.633
C2 C1 O3 114.211 C2 C1 H4 120.317
O3 C1 H4 116.517 H5 C2 H6 108.266
H5 C2 H7 106.932 H6 C2 H7 107.674
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.027      
2 C -0.543      
3 O -0.572      
4 H 0.136      
5 H 0.186      
6 H 0.173      
7 H 0.174      
8 H 0.419      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.609 1.220 0.237 1.384
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.814 -2.026 0.031
y -2.026 -19.092 0.532
z 0.031 0.532 -20.007
Traceless
 xyz
x 4.736 -2.026 0.031
y -2.026 -1.682 0.532
z 0.031 0.532 -3.054
Polar
3z2-r2-6.107
x2-y24.278
xy-2.026
xz0.031
yz0.532


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.588 -0.104 0.041
y -0.104 3.769 0.051
z 0.041 0.051 2.792


<r2> (average value of r2) Å2
<r2> 51.273
(<r2>)1/2 7.161