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: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-154.335769
Energy at 298.15K-154.340742
HF Energy-154.335769
Nuclear repulsion energy75.069216
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 mPW1PW91/6-31G*
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 3839 3640 42.26      
2 A 3168 3004 55.96      
3 A 3153 2990 12.91      
4 A 3105 2944 20.14      
5 A 3011 2855 39.78      
6 A 1527 1448 1.86      
7 A 1501 1424 12.91      
8 A 1485 1408 18.02      
9 A 1421 1348 0.27      
10 A 1312 1244 153.07      
11 A 1244 1180 23.88      
12 A 1081 1025 26.15      
13 A 1042 988 7.56      
14 A 951 902 8.13      
15 A 614 582 17.91      
16 A 413 391 13.49      
17 A 365 346 142.19      
18 A 183 173 3.43      

Unscaled Zero Point Vibrational Energy (zpe) 14706.9 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 13946.6 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 mPW1PW91/6-31G*
ABC
1.53934 0.31665 0.27789

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.094 0.506 -0.104
C2 1.224 -0.163 0.011
O3 -1.163 -0.341 0.026
H4 -0.229 1.522 0.267
H5 1.287 -1.012 -0.678
H6 2.028 0.537 -0.233
H7 1.415 -0.554 1.023
H8 -1.976 0.176 -0.031

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.48191.37021.08982.13062.12572.16061.9119
C21.48192.39412.23911.09541.09321.10203.2177
O31.37022.39412.09762.63623.31992.77260.9643
H41.08982.23912.09763.10012.51252.75362.2248
H52.13061.09542.63623.10011.77411.76643.5318
H62.12571.09323.31992.51251.77411.77314.0247
H72.16061.10202.77262.75361.76641.77313.6247
H81.91193.21770.96432.22483.53184.02473.6247

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 110.620 C1 C2 H6 110.360
C1 C2 H7 112.645 C1 O3 H8 108.713
C2 C1 O3 114.094 C2 C1 H4 120.302
O3 C1 H4 116.538 H5 C2 H6 108.304
H5 C2 H7 107.000 H6 C2 H7 107.740
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.027      
2 C -0.554      
3 O -0.580      
4 H 0.140      
5 H 0.190      
6 H 0.177      
7 H 0.178      
8 H 0.422      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.595 1.232 0.233 1.387
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.828 -2.025 0.043
y -2.025 -19.080 0.532
z 0.043 0.532 -19.990
Traceless
 xyz
x 4.707 -2.025 0.043
y -2.025 -1.671 0.532
z 0.043 0.532 -3.036
Polar
3z2-r2-6.072
x2-y24.252
xy-2.025
xz0.043
yz0.532


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.522 -0.096 0.037
y -0.096 3.731 0.052
z 0.037 0.052 2.774


<r2> (average value of r2) Å2
<r2> 51.108
(<r2>)1/2 7.149