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: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-610.325981
Energy at 298.15K-610.331802
HF Energy-609.937790
Nuclear repulsion energy154.022450
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 MP4/3-21G
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' 3466 3362        
2 A' 3134 3039        
3 A' 3015 2924        
4 A' 1607 1558        
5 A' 1550 1503        
6 A' 1480 1435        
7 A' 1309 1269        
8 A' 1247 1209        
9 A' 1006 976        
10 A' 983 953        
11 A' 686 665        
12 A' 356 345        
13 A' 236 229        
14 A" 3209 3112        
15 A" 3054 2961        
16 A" 1345 1304        
17 A" 1206 1170        
18 A" 1041 1009        
19 A" 827 802        
20 A" 252 244        
21 A" 122 118        

Unscaled Zero Point Vibrational Energy (zpe) 15564.2 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 15094.2 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 MP4/3-21G
ABC
0.92838 0.07640 0.07257

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.037 -0.493 0.000
C2 0.000 0.634 0.000
Cl3 -1.752 -0.150 0.000
O4 2.322 0.237 0.000
H5 0.904 -1.120 0.895
H6 0.904 -1.120 -0.895
H7 0.065 1.243 0.903
H8 0.065 1.243 -0.903
H9 3.052 -0.440 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 O4 H5 H6 H7 H8 H9
C11.53202.81051.47791.10101.10102.18492.18492.0155
C21.53201.91972.35592.16732.16731.09051.09053.2356
Cl32.81051.91974.09272.96662.96662.46102.46104.8131
O41.47792.35594.09272.15712.15712.63092.63090.9954
H51.10102.16732.96662.15711.79062.50763.08552.4242
H61.10102.16732.96662.15711.79063.08552.50762.4242
H72.18491.09052.46102.63092.50763.08551.80523.5453
H82.18491.09052.46102.63093.08552.50761.80523.5453
H92.01553.23564.81310.99542.42422.42423.54533.5453

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 108.504 C1 C2 H7 111.737
C1 C2 H8 111.737 C1 O4 H9 107.554
C2 C1 O4 103.003 C2 C1 H5 109.716
C2 C1 H6 109.716 Cl3 C2 H7 106.398
Cl3 C2 H8 106.398 O4 C1 H5 112.719
O4 C1 H6 112.719 H5 C1 H6 108.813
H7 C2 H8 111.723
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability