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: MP2/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-613.239072
Energy at 298.15K-613.244925
HF Energy-612.890922
Nuclear repulsion energy154.862078
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 MP2/6-31G
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' 3654 3496 11.95      
2 A' 3167 3030 10.01      
3 A' 3063 2931 25.86      
4 A' 1599 1530 0.96      
5 A' 1559 1492 5.04      
6 A' 1486 1422 2.12      
7 A' 1339 1281 4.30      
8 A' 1256 1202 48.28      
9 A' 1052 1007 24.15      
10 A' 990 947 55.58      
11 A' 720 689 77.19      
12 A' 372 356 2.99      
13 A' 244 233 13.93      
14 A" 3249 3109 6.34      
15 A" 3117 2982 40.83      
16 A" 1349 1291 0.25      
17 A" 1218 1165 0.92      
18 A" 1079 1033 2.15      
19 A" 834 798 0.13      
20 A" 234 224 182.88      
21 A" 122 117 21.59      

Unscaled Zero Point Vibrational Energy (zpe) 15851.2 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 15166.5 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 MP2/6-31G
ABC
0.95103 0.07692 0.07317

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.018 -0.513 0.000
C2 0.000 0.620 0.000
Cl3 -1.747 -0.103 0.000
O4 2.322 0.175 0.000
H5 0.898 -1.141 0.894
H6 0.898 -1.141 -0.894
H7 0.083 1.233 0.898
H8 0.083 1.233 -0.898
H9 3.054 -0.475 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 O4 H5 H6 H7 H8 H9
C11.52292.79531.47391.09931.09932.17452.17452.0367
C21.52291.89062.36392.16932.16931.09061.09063.2447
Cl32.79531.89064.07822.97882.97882.43692.43694.8158
O41.47392.36394.07822.13492.13492.63412.63410.9795
H51.09932.16932.97882.13491.78852.50973.08412.4275
H61.09932.16932.97882.13491.78853.08412.50972.4275
H72.17451.09062.43692.63412.50973.08411.79653.5432
H82.17451.09062.43692.63413.08412.50971.79653.5432
H92.03673.24474.81580.97952.42752.42753.54323.5432

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 109.479 C1 C2 H7 111.548
C1 C2 H8 111.548 C1 O4 H9 110.602
C2 C1 O4 104.132 C2 C1 H5 110.604
C2 C1 H6 110.604 Cl3 C2 H7 106.552
Cl3 C2 H8 106.552 O4 C1 H5 111.294
O4 C1 H6 111.294 H5 C1 H6 108.869
H7 C2 H8 110.904
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability