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: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-153.524419
Energy at 298.15K-153.529321
HF Energy-153.524419
Nuclear repulsion energy74.025639
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/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3505 3382 5.89      
2 A 3127 3017 49.23      
3 A 3109 3000 13.59      
4 A 3073 2965 16.81      
5 A 2974 2870 38.99      
6 A 1561 1506 2.78      
7 A 1536 1482 8.76      
8 A 1463 1412 13.18      
9 A 1445 1395 3.43      
10 A 1281 1236 82.29      
11 A 1182 1140 46.80      
12 A 1077 1039 8.67      
13 A 1048 1011 52.17      
14 A 921 889 5.82      
15 A 590 569 20.34      
16 A 395 381 30.35      
17 A 360 347 147.17      
18 A 157 152 2.16      

Unscaled Zero Point Vibrational Energy (zpe) 14400.9 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 13895.4 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/3-21G
ABC
1.48951 0.30909 0.27044

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.080 0.523 -0.098
C2 1.236 -0.173 0.009
O3 -1.183 -0.343 0.027
H4 -0.189 1.545 0.265
H5 1.244 -1.056 -0.640
H6 2.045 0.498 -0.297
H7 1.450 -0.520 1.035
H8 -2.023 0.181 -0.044

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.49311.40781.08992.13122.13452.17121.9736
C21.49312.42512.24711.09601.09471.10363.2790
O31.40782.42512.14662.61623.35122.82520.9928
H41.08992.24712.14663.10482.53062.74632.3062
H52.13121.09602.61623.10481.78151.77133.5443
H62.13451.09473.35122.53061.78151.77874.0882
H72.17121.10362.82522.74631.77131.77873.7042
H81.97363.27900.99282.30623.54434.08823.7042

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 109.845 C1 C2 H6 110.188
C1 C2 H7 112.602 C1 O3 H8 109.385
C2 C1 O3 113.406 C2 C1 H4 120.098
O3 C1 H4 117.947 H5 C2 H6 108.813
H5 C2 H7 107.266 H6 C2 H7 108.011
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.027      
2 C -0.611      
3 O -0.532      
4 H 0.158      
5 H 0.212      
6 H 0.194      
7 H 0.196      
8 H 0.355      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.655 1.292 0.253 1.470
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.713 -2.124 0.108
y -2.124 -19.242 0.554
z 0.108 0.554 -20.108
Traceless
 xyz
x 4.962 -2.124 0.108
y -2.124 -1.832 0.554
z 0.108 0.554 -3.130
Polar
3z2-r2-6.260
x2-y24.529
xy-2.124
xz0.108
yz0.554


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.542 -0.069 0.036
y -0.069 3.471 0.043
z 0.036 0.043 2.363


<r2> (average value of r2) Å2
<r2> 52.142
(<r2>)1/2 7.221