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: ROHF/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 ROHF/6-31G**
 hartrees
Energy at 0K-153.461535
Energy at 298.15K-153.466687
HF Energy-153.461535
Nuclear repulsion energy75.376938
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 ROHF/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 4198 3587 68.19      
2 A 3269 2793 75.77      
3 A 3248 2776 27.42      
4 A 3232 2762 34.17      
5 A 3165 2705 30.67      
6 A 1622 1386 1.83      
7 A 1602 1369 5.58      
8 A 1580 1350 22.18      
9 A 1517 1297 2.45      
10 A 1397 1194 177.23      
11 A 1292 1104 29.80      
12 A 1161 992 8.16      
13 A 1133 968 39.16      
14 A 993 849 6.94      
15 A 775 662 9.76      
16 A 443 379 11.34      
17 A 347 297 154.47      
18 A 206 176 5.41      

Unscaled Zero Point Vibrational Energy (zpe) 15589.0 cm-1
Scaled (by 0.8546) Zero Point Vibrational Energy (zpe) 13322.4 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 ROHF/6-31G**
ABC
1.53858 0.31873 0.27996

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.098 0.514 -0.121
C2 1.224 -0.166 0.012
O3 -1.156 -0.335 0.032
H4 -0.221 1.496 0.317
H5 1.284 -1.006 -0.672
H6 2.030 0.523 -0.214
H7 1.375 -0.549 1.021
H8 -1.969 0.134 -0.051

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.49291.36541.08202.12762.13052.14551.9103
C21.49292.38622.22281.08511.08471.08913.2077
O31.36542.38622.07592.62743.30932.72550.9424
H41.08202.22282.07593.08272.50852.68662.2464
H52.12761.08512.62743.08271.76241.75593.5033
H62.13051.08473.30932.50851.76241.76134.0215
H72.14551.08912.72552.68661.75591.76133.5770
H81.91033.20770.94242.24643.50334.02153.5770

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 110.236 C1 C2 H6 110.490
C1 C2 H7 111.431 C1 O3 H8 110.394
C2 C1 O3 113.120 C2 C1 H4 118.497
O3 C1 H4 115.555 H5 C2 H6 108.629
H5 C2 H7 107.725 H6 C2 H7 108.234
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.154      
2 C -0.361      
3 O -0.603      
4 H 0.092      
5 H 0.134      
6 H 0.116      
7 H 0.124      
8 H 0.346      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.401 1.392 0.128 1.454
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.380 -2.066 0.226
y -2.066 -19.452 0.517
z 0.226 0.517 -20.001
Traceless
 xyz
x 4.347 -2.066 0.226
y -2.066 -1.762 0.517
z 0.226 0.517 -2.585
Polar
3z2-r2-5.171
x2-y24.073
xy-2.066
xz0.226
yz0.517


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


<r2> (average value of r2) Å2
<r2> 50.977
(<r2>)1/2 7.140