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=FULL/6-31+G**

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=FULL/6-31+G**
 hartrees
Energy at 0K-613.626894
Energy at 298.15K-613.632773
HF Energy-612.995137
Nuclear repulsion energy159.566574
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=FULL/6-31+G**
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' 3886 3650 46.07      
2 A' 3187 2993 13.76      
3 A' 3112 2923 34.07      
4 A' 1577 1481 1.73      
5 A' 1539 1446 4.77      
6 A' 1482 1392 1.93      
7 A' 1349 1267 5.98      
8 A' 1247 1171 44.84      
9 A' 1085 1019 102.98      
10 A' 1056 992 4.31      
11 A' 820 770 64.77      
12 A' 402 378 3.60      
13 A' 255 240 11.01      
14 A" 3265 3066 4.73      
15 A" 3173 2980 27.16      
16 A" 1335 1254 0.05      
17 A" 1234 1159 0.32      
18 A" 1107 1040 2.63      
19 A" 825 775 0.00      
20 A" 188 176 100.16      
21 A" 117 110 58.60      

Unscaled Zero Point Vibrational Energy (zpe) 16120.0 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 15139.9 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=FULL/6-31+G**
ABC
0.98863 0.08219 0.07812

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.954 -0.568 0.000
C2 0.000 0.604 0.000
Cl3 -1.684 0.022 0.000
O4 2.262 0.006 0.000
H5 0.790 -1.182 0.888
H6 0.790 -1.182 -0.888
H7 0.150 1.212 0.887
H8 0.150 1.212 -0.887
H9 2.915 -0.705 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 O4 H5 H6 H7 H8 H9
C11.51152.70301.42841.09161.09162.14502.14501.9653
C21.51151.78132.34022.14522.14521.08541.08543.1954
Cl32.70301.78133.94602.89052.89052.35872.35874.6555
O41.42842.34023.94602.08962.08962.58912.58910.9649
H51.09162.14522.89052.08961.77512.47783.04752.3516
H61.09162.14522.89052.08961.77513.04752.47782.3516
H72.14501.08542.35872.58912.47783.04751.77353.4794
H82.14501.08542.35872.58913.04752.47781.77353.4794
H91.96533.19544.65550.96492.35162.35163.47943.4794

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 110.079 C1 C2 H7 110.300
C1 C2 H8 110.300 C1 O4 H9 108.862
C2 C1 O4 105.473 C2 C1 H5 109.940
C2 C1 H6 109.940 Cl3 C2 H7 108.273
Cl3 C2 H8 108.273 O4 C1 H5 111.331
O4 C1 H6 111.331 H5 C1 H6 108.792
H7 C2 H8 109.565
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability