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 CH2FCH2Cl (Ethane, 1-chloro-2-fluoro-)

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-637.869059
Energy at 298.15K 
HF Energy-637.085383
Nuclear repulsion energy157.754294
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' 3138 2980 14.73      
2 A' 3111 2954 14.52      
3 A' 1538 1460 1.84      
4 A' 1510 1434 4.83      
5 A' 1433 1361 4.69      
6 A' 1291 1226 7.45      
7 A' 1109 1053 40.35      
8 A' 1083 1028 76.91      
9 A' 813 772 35.53      
10 A' 392 372 2.57      
11 A' 242 230 10.58      
12 A" 3212 3049 6.88      
13 A" 3175 3014 10.80      
14 A" 1320 1253 0.02      
15 A" 1236 1174 1.34      
16 A" 1075 1021 2.02      
17 A" 803 763 0.48      
18 A" 136 129 9.21      

Unscaled Zero Point Vibrational Energy (zpe) 13308.2 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 12636.1 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
1.00708 0.08059 0.07678

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 0.000 0.621 0.000
C2 0.976 -0.531 0.000
Cl3 -1.655 -0.035 0.000
F4 2.261 -0.014 0.000
H5 0.120 1.234 0.887
H6 0.120 1.234 -0.887
H7 0.847 -1.146 0.888
H8 0.847 -1.146 -0.888

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6 H7 H8
C11.51031.78052.34821.08511.08512.15142.1514
C21.51032.67771.38492.15312.15311.08791.0879
Cl31.78052.67773.91592.35572.35572.87822.8782
F42.34821.38493.91592.63172.63172.01712.0171
H51.08512.15312.35572.63171.77492.48803.0568
H61.08512.15312.35572.63171.77493.05682.4880
H72.15141.08792.87822.01712.48803.05681.7769
H82.15141.08792.87822.01713.05682.48801.7769

picture of Ethane, 1-chloro-2-fluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 108.325 C1 C2 H7 110.750
C1 C2 H8 110.750 C2 C1 Cl3 108.640
C2 C1 H5 111.054 C2 C1 H6 111.054
Cl3 C1 H5 108.123 Cl3 C1 H6 108.123
F4 C2 H7 108.726 F4 C2 H8 108.726
H5 C1 H6 109.747 H7 C2 H8 109.509
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability