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-154.274686
Energy at 298.15K-154.279587
HF Energy-154.274686
Nuclear repulsion energy74.377375
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 3709 3553 19.07      
2 A 3172 3037 54.88      
3 A 3142 3009 8.70      
4 A 3087 2956 23.06      
5 A 2988 2862 42.45      
6 A 1534 1469 3.30      
7 A 1509 1446 12.14      
8 A 1473 1411 21.60      
9 A 1439 1378 0.53      
10 A 1275 1221 76.39      
11 A 1204 1153 79.97      
12 A 1082 1036 41.29      
13 A 1056 1012 11.70      
14 A 942 902 14.16      
15 A 542 519 22.64      
16 A 406 389 16.55      
17 A 364 349 191.95      
18 A 166 159 4.69      

Unscaled Zero Point Vibrational Energy (zpe) 14544.9 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 13929.6 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
1.51814 0.31059 0.27214

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 -0.077 0.516 -0.088
C2 1.232 -0.171 0.008
O3 -1.180 -0.337 0.025
H4 -0.211 1.547 0.234
H5 1.275 -1.019 -0.685
H6 2.043 0.521 -0.242
H7 1.431 -0.571 1.017
H8 -2.022 0.148 -0.045

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.48131.39851.08902.13102.12602.16301.9793
C21.48132.41782.25491.09671.09481.10383.2696
O31.39852.41782.12942.64513.34612.80350.9738
H41.08902.25492.12943.10492.52212.79262.3056
H52.13101.09672.64513.10491.77721.76753.5551
H62.12601.09483.34612.52211.77721.77544.0866
H72.16301.10382.80352.79261.76751.77543.6837
H81.97933.26960.97382.30563.55514.08663.6837

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 110.616 C1 C2 H6 110.333
C1 C2 H7 112.773 C1 O3 H8 111.842
C2 C1 O3 114.157 C2 C1 H4 121.884
O3 C1 H4 117.202 H5 C2 H6 108.371
H5 C2 H7 106.872 H6 C2 H7 107.700
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 0.071      
2 C -0.518      
3 O -0.595      
4 H 0.136      
5 H 0.185      
6 H 0.165      
7 H 0.171      
8 H 0.386      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.528 1.509 0.188 1.610
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.516 -2.341 0.148
y -2.341 -19.342 0.536
z 0.148 0.536 -20.170
Traceless
 xyz
x 5.241 -2.341 0.148
y -2.341 -1.999 0.536
z 0.148 0.536 -3.242
Polar
3z2-r2-6.483
x2-y24.826
xy-2.341
xz0.148
yz0.536


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.588 -0.050 0.051
y -0.050 3.684 0.018
z 0.051 0.018 2.594


<r2> (average value of r2) Å2
<r2> 51.914
(<r2>)1/2 7.205