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: B2PLYP=FULLultrafine/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
1 2 no C1 1A

Conformer 1 (CS)

Jump to S1C2
Energy calculated at B2PLYP=FULLultrafine/3-21G
 hartrees
Energy at 0K-635.076478
Energy at 298.15K 
HF Energy-634.958766
Nuclear repulsion energy153.123926
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 B2PLYP=FULLultrafine/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' 3179 3179 5.74      
2 A' 3115 3115 16.71      
3 A' 1608 1608 1.20      
4 A' 1560 1560 6.56      
5 A' 1467 1467 2.94      
6 A' 1301 1301 15.18      
7 A' 1060 1060 50.38      
8 A' 1054 1054 7.28      
9 A' 698 698 47.76      
10 A' 353 353 1.65      
11 A' 227 227 15.57      
12 A" 3254 3254 3.17      
13 A" 3164 3164 22.04      
14 A" 1360 1360 0.25      
15 A" 1239 1239 0.78      
16 A" 1057 1057 1.37      
17 A" 830 830 1.86      
18 A" 128 128 11.87      

Unscaled Zero Point Vibrational Energy (zpe) 13326.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13326.8 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 B2PLYP=FULLultrafine/3-21G
ABC
0.96764 0.07550 0.07196

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.643 0.000
C2 1.044 -0.463 0.000
Cl3 -1.712 -0.177 0.000
F4 2.319 0.177 0.000
H5 0.047 1.252 0.897
H6 0.047 1.252 -0.897
H7 0.940 -1.083 0.891
H8 0.940 -1.083 -0.891

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6 H7 H8
C11.52121.89872.36511.08501.08502.15852.1585
C21.52122.77121.42592.17732.17731.09051.0905
Cl31.89872.77124.04642.43772.43772.94122.9412
F42.36511.42594.04642.66882.66882.06902.0690
H51.08502.17732.43772.66881.79352.50083.0739
H61.08502.17732.43772.66881.79353.07392.5008
H72.15851.09052.94122.06902.50083.07391.7813
H82.15851.09052.94122.06903.07392.50081.7813

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 106.701 C1 C2 H7 110.392
C1 C2 H8 110.392 C2 C1 Cl3 107.744
C2 C1 H5 112.245 C2 C1 H6 112.245
Cl3 C1 H5 106.348 Cl3 C1 H6 106.348
F4 C2 H7 109.898 F4 C2 H8 109.898
H5 C1 H6 111.479 H7 C2 H8 109.524
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at B2PLYP=FULLultrafine/3-21G
 hartrees
Energy at 0K-635.075784
Energy at 298.15K 
HF Energy-634.958055
Nuclear repulsion energy157.812029
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 B2PLYP=FULLultrafine/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 3246 3246 1.60      
2 A 3172 3172 8.07      
3 A 3139 3139 17.44      
4 A 3072 3072 23.15      
5 A 1589 1589 1.84      
6 A 1537 1537 9.62      
7 A 1476 1476 11.80      
8 A 1368 1368 25.87      
9 A 1287 1287 2.59      
10 A 1245 1245 1.26      
11 A 1109 1109 25.16      
12 A 1068 1068 20.13      
13 A 974 974 6.26      
14 A 863 863 2.88      
15 A 619 619 29.30      
16 A 448 448 15.13      
17 A 280 280 1.29      
18 A 117 117 2.21      

Unscaled Zero Point Vibrational Energy (zpe) 13304.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13304.5 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 B2PLYP=FULLultrafine/3-21G
ABC
0.41422 0.10794 0.09293

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.025 0.910 -0.305
C2 1.235 0.415 0.370
Cl3 -1.456 -0.283 0.065
F4 1.630 -0.819 -0.206
H5 -0.340 1.877 0.077
H6 0.071 0.912 -1.386
H7 2.026 1.158 0.217
H8 1.067 0.286 1.440

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6 H7 H8
C11.51281.89992.39611.08591.08542.13032.1508
C21.51282.79731.41772.16892.16441.09571.0910
Cl31.89992.79733.14492.43152.42263.77152.9296
F42.39611.41773.14493.35122.61212.06022.0609
H51.08592.16892.43153.35121.79962.47602.5234
H61.08542.16442.42262.61211.79962.53933.0610
H72.13031.09573.77152.06022.47602.53931.7820
H82.15081.09102.92962.06092.52343.06101.7820

picture of Ethane, 1-chloro-2-fluoro- state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 109.657 C1 C2 H7 108.445
C1 C2 H8 110.338 C2 C1 Cl3 109.582
C2 C1 H5 112.107 C2 C1 H6 111.774
Cl3 C1 H5 105.799 Cl3 C1 H6 105.194
F4 C2 H7 109.438 F4 C2 H8 109.787
H5 C1 H6 111.951 H7 C2 H8 109.151
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability