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/STO-3G

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/STO-3G
 hartrees
Energy at 0K-606.284017
Energy at 298.15K-606.289837
HF Energy-606.128548
Nuclear repulsion energy154.905154
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/STO-3G
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' 3884 3452 36.02      
2 A' 3413 3034 0.23      
3 A' 3342 2970 5.85      
4 A' 1726 1534 0.45      
5 A' 1681 1494 3.28      
6 A' 1651 1468 3.32      
7 A' 1476 1312 0.20      
8 A' 1368 1216 42.89      
9 A' 1205 1072 2.88      
10 A' 1109 986 1.91      
11 A' 905 804 32.76      
12 A' 391 348 0.60      
13 A' 248 220 8.49      
14 A" 3536 3143 0.25      
15 A" 3450 3067 10.76      
16 A" 1416 1259 0.00      
17 A" 1282 1140 6.12      
18 A" 1139 1013 0.24      
19 A" 847 753 0.06      
20 A" 316 281 72.55      
21 A" 100 89 7.03      

Unscaled Zero Point Vibrational Energy (zpe) 17242.5 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 15326.8 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/STO-3G
ABC
0.93401 0.07716 0.07330

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.996 -0.584 0.000
C2 0.000 0.625 0.000
Cl3 -1.736 0.035 0.000
O4 2.341 -0.009 0.000
H5 0.805 -1.215 0.900
H6 0.805 -1.215 -0.900
H7 0.142 1.252 0.903
H8 0.142 1.252 -0.903
H9 2.912 -0.849 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 O4 H5 H6 H7 H8 H9
C11.56702.80151.46211.11551.11552.21762.21761.9341
C21.56701.83342.42522.20132.20131.10831.10833.2642
Cl32.80151.83344.07672.97142.97142.41292.41294.7314
O41.46212.42524.07672.14982.14982.69112.69111.0158
H51.11552.20132.97142.14981.79922.55523.12702.3202
H61.11552.20132.97142.14981.79923.12702.55522.3202
H72.21761.10832.41292.69112.55523.12701.80583.5925
H82.21761.10832.41292.69113.12702.55521.80583.5925
H91.93413.26424.73141.01582.32022.32023.59253.5925

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 110.702 C1 C2 H7 110.804
C1 C2 H8 110.804 C1 O4 H9 101.090
C2 C1 O4 106.331 C2 C1 H5 109.132
C2 C1 H6 109.132 Cl3 C2 H7 107.654
Cl3 C2 H8 107.654 O4 C1 H5 112.342
O4 C1 H6 112.342 H5 C1 H6 107.502
H7 C2 H8 109.111
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability