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/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-613.858677
Energy at 298.15K-613.864600
HF Energy-613.080445
Nuclear repulsion energy159.870441
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/cc-pVTZ
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' 3869 3674 50.25      
2 A' 3136 2978 13.20      
3 A' 3062 2907 30.45      
4 A' 1544 1466 2.34      
5 A' 1509 1433 3.89      
6 A' 1463 1389 1.84      
7 A' 1307 1241 0.43      
8 A' 1243 1180 42.65      
9 A' 1089 1034 91.79      
10 A' 1050 997 11.50      
11 A' 809 768 57.53      
12 A' 396 376 2.77      
13 A' 248 235 8.91      
14 A" 3207 3045 4.80      
15 A" 3115 2957 25.49      
16 A" 1318 1251 0.05      
17 A" 1221 1160 0.47      
18 A" 1075 1021 2.27      
19 A" 810 769 0.03      
20 A" 217 206 106.08      
21 A" 129 122 19.78      

Unscaled Zero Point Vibrational Energy (zpe) 15907.2 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 15103.9 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/cc-pVTZ
ABC
0.98657 0.08260 0.07847

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.957 -0.559 0.000
C2 0.000 0.611 0.000
Cl3 -1.679 0.014 0.000
O4 2.259 0.009 0.000
H5 0.779 -1.172 0.886
H6 0.779 -1.172 -0.886
H7 0.139 1.221 0.887
H8 0.139 1.221 -0.887
H9 2.895 -0.711 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 O4 H5 H6 H7 H8 H9
C11.51082.69701.42001.09201.09202.14992.14991.9439
C21.51081.78172.33742.13772.13771.08521.08523.1823
Cl32.69701.78173.93742.86912.86912.35512.35514.6306
O41.42002.33743.93742.08992.08992.59802.59800.9607
H51.09202.13772.86912.08991.77142.47723.04592.3393
H61.09202.13772.86912.08991.77143.04592.47722.3393
H72.14991.08522.35512.59802.47723.04591.77313.4807
H82.14991.08522.35512.59803.04592.47721.77313.4807
H91.94393.18234.63060.96072.33932.33933.48073.4807

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 109.721 C1 C2 H7 110.748
C1 C2 H8 110.748 C1 O4 H9 107.917
C2 C1 O4 105.750 C2 C1 H5 109.376
C2 C1 H6 109.376 Cl3 C2 H7 107.987
Cl3 C2 H8 107.987 O4 C1 H5 111.939
O4 C1 H6 111.939 H5 C1 H6 108.402
H7 C2 H8 109.566
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability