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(T)/cc-pVDZ

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(T)/cc-pVDZ
 hartrees
Energy at 0K-613.682265
Energy at 298.15K-613.688184
HF Energy-613.013594
Nuclear repulsion energy158.273457
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(T)/cc-pVDZ
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' 3836 3657        
2 A' 3104 2958        
3 A' 3011 2870        
4 A' 1522 1451        
5 A' 1490 1421        
6 A' 1462 1394        
7 A' 1305 1244        
8 A' 1238 1180        
9 A' 1097 1045        
10 A' 1043 994        
11 A' 786 749        
12 A' 390 371        
13 A' 249 237        
14 A" 3173 3024        
15 A" 3056 2913        
16 A" 1297 1236        
17 A" 1206 1150        
18 A" 1058 1009        
19 A" 800 763        
20 A" 232 221        
21 A" 131 125        

Unscaled Zero Point Vibrational Energy (zpe) 15742.5 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 15004.2 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 QCISD(T)/cc-pVDZ
ABC
0.96716 0.08093 0.07690

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.978 -0.559 0.000
C2 0.000 0.613 0.000
Cl3 -1.698 0.007 0.000
O4 2.277 0.021 0.000
H5 0.796 -1.187 0.898
H6 0.796 -1.187 -0.898
H7 0.141 1.235 0.899
H8 0.141 1.235 -0.899
H9 2.909 -0.710 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 O4 H5 H6 H7 H8 H9
C11.52602.73491.42291.11081.11082.17422.17421.9375
C21.52601.80252.35242.16272.16271.10261.10263.1959
Cl32.73491.80253.97472.90682.90682.38672.38674.6627
O41.42292.35243.97472.11192.11192.61612.61610.9669
H51.11082.16272.90682.11191.79662.50853.08602.3457
H61.11082.16272.90682.11191.79663.08602.50852.3457
H72.17421.10262.38672.61612.50853.08601.79843.5008
H82.17421.10262.38672.61613.08602.50851.79843.5008
H91.93753.19594.66270.96692.34572.34573.50083.5008

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 110.223 C1 C2 H7 110.577
C1 C2 H8 110.577 C1 O4 H9 106.782
C2 C1 O4 105.770 C2 C1 H5 109.191
C2 C1 H6 109.191 Cl3 C2 H7 108.052
Cl3 C2 H8 108.052 O4 C1 H5 112.342
O4 C1 H6 112.342 H5 C1 H6 107.933
H7 C2 H8 109.284
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability