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 CH3CF2Cl (1-Chloro-1,1-Difluoroethane)

using model chemistry: MP2=FULL/3-21G*

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/3-21G*
 hartrees
Energy at 0K-732.831221
Energy at 298.15K-732.835508
HF Energy-732.259488
Nuclear repulsion energy241.676249
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/3-21G*
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' 3209 3042 2.04      
2 A' 3127 2965 0.56      
3 A' 1581 1499 2.09      
4 A' 1515 1436 24.29      
5 A' 1262 1196 140.43      
6 A' 1189 1127 124.80      
7 A' 909 862 125.20      
8 A' 640 607 77.88      
9 A' 517 490 19.34      
10 A' 411 390 2.39      
11 A' 310 294 0.44      
12 A" 3232 3064 0.96      
13 A" 1585 1502 4.36      
14 A" 1307 1239 116.12      
15 A" 1048 993 34.41      
16 A" 406 385 0.76      
17 A" 323 306 0.99      
18 A" 271 257 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11420.6 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 10826.7 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/3-21G*
ABC
0.16764 0.10390 0.10282

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.352 -0.001 0.000
C2 -0.821 1.434 0.000
Cl3 1.449 -0.111 0.000
F4 -0.821 -0.669 1.122
F5 -0.821 -0.669 -1.122
H6 -1.914 1.436 0.000
H7 -0.454 1.939 0.893
H8 -0.454 1.939 -0.893

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 F5 H6 H7 H8
C11.50971.80461.38711.38712.12252.13812.1381
C21.50972.74572.38332.38331.09311.08951.0895
Cl31.80462.74572.59292.59293.70182.93592.9359
F41.38712.38332.59292.24372.62382.64353.3158
F51.38712.38332.59292.24372.62383.31582.6435
H62.12251.09313.70182.62382.62381.78381.7838
H72.13811.08952.93592.64353.31581.78381.7857
H82.13811.08952.93593.31582.64351.78381.7857

picture of 1-Chloro-1,1-Difluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 108.204 C1 C2 H7 109.636
C1 C2 H8 109.636 C2 C1 Cl3 111.570
C2 C1 F4 110.649 C2 C1 F5 110.649
Cl3 C1 F4 107.943 Cl3 C1 F5 107.943
F4 C1 F5 107.951 H6 C2 H7 109.633
H6 C2 H8 109.633 H7 C2 H8 110.071
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability