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: QCISD/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 QCISD/6-311G*
 hartrees
Energy at 0K-613.686169
Energy at 298.15K-613.692125
HF Energy-613.036791
Nuclear repulsion energy159.150093
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 QCISD/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' 3859 3695 18.12      
2 A' 3112 2979 18.72      
3 A' 3025 2896 38.42      
4 A' 1562 1495 1.46      
5 A' 1525 1460 5.33      
6 A' 1499 1435 1.48      
7 A' 1356 1298 0.13      
8 A' 1272 1218 76.31      
9 A' 1112 1065 79.76      
10 A' 1057 1012 7.70      
11 A' 804 770 69.92      
12 A' 399 382 3.18      
13 A' 256 245 10.20      
14 A" 3177 3042 11.28      
15 A" 3067 2936 41.70      
16 A" 1336 1280 0.07      
17 A" 1240 1188 0.52      
18 A" 1101 1055 5.50      
19 A" 819 784 0.00      
20 A" 222 212 142.55      
21 A" 134 129 22.91      

Unscaled Zero Point Vibrational Energy (zpe) 15966.8 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 15286.6 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 QCISD/6-311G*
ABC
0.98185 0.08172 0.07767

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.968 -0.560 0.000
C2 0.000 0.609 0.000
Cl3 -1.690 0.012 0.000
O4 2.265 0.015 0.000
H5 0.798 -1.181 0.892
H6 0.798 -1.181 -0.892
H7 0.142 1.221 0.892
H8 0.142 1.221 -0.892
H9 2.913 -0.693 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 O4 H5 H6 H7 H8 H9
C11.51772.71861.41901.09981.09982.15702.15701.9492
C21.51771.79192.34202.15282.15281.09131.09133.1904
Cl32.71861.79193.95502.89922.89922.36882.36884.6561
O41.41902.34203.95502.09252.09252.60052.60050.9591
H51.09982.15282.89922.09251.78362.49033.06332.3466
H61.09982.15282.89922.09251.78363.06332.49032.3466
H72.15701.09132.36882.60052.49033.06331.78393.4843
H82.15701.09132.36882.60053.06332.49031.78393.4843
H91.94923.19044.65610.95912.34662.34663.48433.4843

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 110.184 C1 C2 H7 110.467
C1 C2 H8 110.467 C1 O4 H9 108.556
C2 C1 O4 105.736 C2 C1 H5 109.627
C2 C1 H6 109.627 Cl3 C2 H7 108.014
Cl3 C2 H8 108.014 O4 C1 H5 111.729
O4 C1 H6 111.729 H5 C1 H6 108.358
H7 C2 H8 109.626
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability