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 CH2ClCH2OH (2-Chloroethanol)

using model chemistry: PBEPBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/STO-3G
 hartrees
Energy at 0K-607.226486
Energy at 298.15K-607.232069
HF Energy-607.226486
Nuclear repulsion energy154.176829
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 PBEPBE/STO-3G
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' 3577 3268 32.50      
2 A' 3279 2995 0.34      
3 A' 3154 2882 12.57      
4 A' 1635 1493 1.32      
5 A' 1586 1449 2.83      
6 A' 1556 1421 2.36      
7 A' 1376 1257 0.06      
8 A' 1284 1173 26.03      
9 A' 1101 1006 7.46      
10 A' 1042 952 3.51      
11 A' 838 766 35.91      
12 A' 368 336 0.60      
13 A' 231 211 8.29      
14 A" 3401 3107 0.14      
15 A" 3247 2966 15.79      
16 A" 1329 1214 0.09      
17 A" 1196 1092 2.77      
18 A" 1070 978 0.09      
19 A" 808 739 0.59      
20 A" 264 241 69.91      
21 A" 90 82 8.84      

Unscaled Zero Point Vibrational Energy (zpe) 16214.1 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 14813.2 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 PBEPBE/STO-3G
ABC
0.92378 0.07665 0.07280

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.002 -0.572 0.000
C2 0.000 0.627 0.000
Cl3 -1.742 0.010 0.000
O4 2.351 0.029 0.000
H5 0.805 -1.208 0.904
H6 0.805 -1.208 -0.904
H7 0.127 1.256 0.908
H8 0.127 1.256 -0.908
H9 2.934 -0.830 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 O4 H5 H6 H7 H8 H9
C11.56352.80551.47671.12261.12262.22092.22091.9485
C21.56351.84842.42572.19842.19841.11131.11133.2755
Cl32.80551.84844.09302.96442.96442.42292.42294.7506
O41.47672.42574.09302.17662.17662.69692.69691.0378
H51.12262.19842.96442.17661.80892.55483.13232.3437
H61.12262.19842.96442.17661.80893.13232.55482.3437
H72.22091.11132.42292.69692.55483.13231.81573.6124
H82.22091.11132.42292.69693.13232.55481.81573.6124
H91.94853.27554.75061.03782.34372.34373.61243.6124

picture of 2-Chloroethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl3 110.353 C1 C2 H7 111.136
C1 C2 H8 111.136 C1 O4 H9 100.122
C2 C1 O4 105.823 C2 C1 H5 108.749
C2 C1 H6 108.749 Cl3 C2 H7 107.256
Cl3 C2 H8 107.256 O4 C1 H5 113.022
O4 C1 H6 113.022 H5 C1 H6 107.350
H7 C2 H8 109.553
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.066      
2 C -0.111      
3 Cl -0.159      
4 O -0.223      
5 H 0.079      
6 H 0.079      
7 H 0.114      
8 H 0.114      
9 H 0.172      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.046 -0.674 0.000 2.155
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.529 -3.441 0.000
y -3.441 -27.270 0.000
z 0.000 0.000 -28.777
Traceless
 xyz
x -3.505 -3.441 0.000
y -3.441 2.883 0.000
z 0.000 0.000 0.623
Polar
3z2-r21.245
x2-y2-4.259
xy-3.441
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.340 0.156 0.000
y 0.156 2.193 0.000
z 0.000 0.000 1.686


<r2> (average value of r2) Å2
<r2> 144.381
(<r2>)1/2 12.016