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/6-311G*

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/6-311G*
 hartrees
Energy at 0K-614.299379
Energy at 298.15K-614.305184
HF Energy-614.299379
Nuclear repulsion energy158.184232
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/6-311G*
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' 3682 3644 11.58      
2 A' 3029 2998 20.59      
3 A' 2919 2889 48.65      
4 A' 1490 1475 1.78      
5 A' 1455 1440 3.33      
6 A' 1423 1408 1.43      
7 A' 1279 1266 0.30      
8 A' 1213 1201 56.18      
9 A' 1037 1026 72.05      
10 A' 1006 995 30.24      
11 A' 748 740 70.96      
12 A' 378 374 2.35      
13 A' 240 237 9.94      
14 A" 3092 3060 11.99      
15 A" 2955 2924 49.05      
16 A" 1274 1261 0.00      
17 A" 1176 1164 0.05      
18 A" 1041 1030 5.93      
19 A" 788 780 0.27      
20 A" 220 218 135.16      
21 A" 122 121 17.33      

Unscaled Zero Point Vibrational Energy (zpe) 15283.6 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 15124.7 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/6-311G*
ABC
0.97451 0.08069 0.07672

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.982 -0.554 0.000
C2 0.000 0.606 0.000
Cl3 -1.702 -0.004 0.000
O4 2.278 0.043 0.000
H5 0.812 -1.182 0.896
H6 0.812 -1.182 -0.896
H7 0.129 1.226 0.895
H8 0.129 1.226 -0.895
H9 2.934 -0.673 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 O4 H5 H6 H7 H8 H9
C11.51972.73921.42711.10741.10742.16772.16771.9563
C21.51971.80762.34612.15832.15831.09701.09703.2010
Cl32.73921.80763.97962.91692.91692.38072.38074.6841
O41.42712.34613.97962.11032.11032.61092.61090.9720
H51.10742.15832.91692.11031.79292.50303.07832.3596
H61.10742.15832.91692.11031.79293.07832.50302.3596
H72.16771.09702.38072.61092.50303.07831.79073.5041
H82.16771.09702.38072.61093.07832.50301.79073.5041
H91.95633.20104.68410.97202.35962.35963.50413.5041

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 110.523 C1 C2 H7 110.835
C1 C2 H8 110.835 C1 O4 H9 107.747
C2 C1 O4 105.484 C2 C1 H5 109.479
C2 C1 H6 109.479 Cl3 C2 H7 107.563
Cl3 C2 H8 107.563 O4 C1 H5 112.125
O4 C1 H6 112.125 H5 C1 H6 108.100
H7 C2 H8 109.407
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.206      
2 C -0.522      
3 Cl -0.086      
4 O -0.535      
5 H 0.209      
6 H 0.209      
7 H 0.271      
8 H 0.271      
9 H 0.389      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.021 -1.093 0.000 2.298
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.221 -4.446 0.000
y -4.446 -30.527 0.000
z 0.000 0.000 -31.957
Traceless
 xyz
x -0.979 -4.446 0.000
y -4.446 1.561 0.000
z 0.000 0.000 -0.582
Polar
3z2-r2-1.165
x2-y2-1.694
xy-4.446
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.546 0.177 0.000
y 0.177 4.989 0.000
z 0.000 0.000 4.243


<r2> (average value of r2) Å2
<r2> 139.715
(<r2>)1/2 11.820