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 CH3CHFCl (Ethane, 1-chloro-1-fluoro-)

using model chemistry: MP2=FULL/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2=FULL/6-31+G**
 hartrees
Energy at 0K-637.616821
Energy at 298.15K-637.621820
HF Energy-636.994957
Nuclear repulsion energy166.165854
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/6-31+G**
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 3258 3060 7.56      
2 A 3247 3049 6.68      
3 A 3214 3018 10.90      
4 A 3142 2951 4.68      
5 A 1533 1440 3.45      
6 A 1529 1436 5.02      
7 A 1466 1377 24.20      
8 A 1391 1307 9.97      
9 A 1372 1288 53.11      
10 A 1172 1101 17.03      
11 A 1144 1075 102.75      
12 A 1071 1006 26.45      
13 A 924 868 76.38      
14 A 734 689 54.49      
15 A 484 455 8.13      
16 A 386 363 2.87      
17 A 335 314 1.32      
18 A 268 252 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 13335.0 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 12524.2 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 MP2=FULL/6-31+G**
ABC
0.30031 0.15555 0.11100

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.394 0.088 0.391
C2 1.253 -1.036 -0.114
H3 0.427 0.211 1.469
F4 0.837 1.286 -0.163
Cl5 -1.308 -0.128 -0.057
H6 1.176 -1.100 -1.196
H7 2.286 -0.841 0.165
H8 0.934 -1.978 0.325

Atom - Atom Distances (Å)
  C1 C2 H3 F4 Cl5 H6 H7 H8
C11.50211.08601.39241.77272.13072.12042.1365
C21.50212.17782.35942.71751.08631.08761.0868
H31.08602.17781.99702.33533.06282.50312.5215
F41.39242.35941.99702.57212.62222.59453.3016
Cl51.77272.71752.33532.57212.89993.67072.9315
H62.13071.08633.06282.62222.89991.77491.7719
H72.12041.08762.50312.59453.67071.77491.7733
H82.13651.08682.52153.30162.93151.77191.7733

picture of Ethane, 1-chloro-1-fluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.762 C1 C2 H7 108.875
C1 C2 H8 110.196 C2 C1 H3 113.624
C2 C1 F4 109.144 C2 C1 Cl5 111.899
H3 C1 F4 106.712 H3 C1 Cl5 107.091
F4 C1 Cl5 108.108 H6 C2 H7 109.467
H6 C2 H8 109.249 H7 C2 H8 109.276
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability