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 CHF2CH2F (Ethane, 1,1,2-trifluoro)

using model chemistry: MP2/TZVP

19 10 17 12 22

States and conformations

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

Conformer 1 (C1)

Jump to S1C2
Energy calculated at MP2/TZVP
 hartrees
Energy at 0K-376.837114
Energy at 298.15K 
HF Energy-375.938421
Nuclear repulsion energy190.598849
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/TZVP
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 3211 3044 17.42 32.62 0.70 0.82
2 A 3173 3008 22.63 85.14 0.30 0.46
3 A 3135 2971 14.29 110.47 0.07 0.14
4 A 1530 1450 3.30 5.54 0.75 0.86
5 A 1499 1421 14.85 2.13 0.59 0.74
6 A 1448 1373 22.07 4.07 0.75 0.85
7 A 1384 1312 20.84 2.43 0.73 0.84
8 A 1301 1233 10.28 7.15 0.73 0.84
9 A 1185 1124 90.15 4.75 0.65 0.79
10 A 1166 1105 8.33 1.82 0.40 0.57
11 A 1129 1070 239.12 1.07 0.50 0.67
12 A 1106 1048 47.77 5.60 0.47 0.64
13 A 929 881 40.74 4.54 0.33 0.50
14 A 588 557 4.52 2.16 0.34 0.51
15 A 487 462 21.79 0.74 0.73 0.85
16 A 433 410 5.31 1.74 0.52 0.68
17 A 249 236 9.57 0.08 0.57 0.73
18 A 119 113 9.49 0.04 0.60 0.75

Unscaled Zero Point Vibrational Energy (zpe) 12035.8 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 11408.8 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/TZVP
ABC
0.30256 0.12091 0.09324

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.773 -0.589 -0.286
C2 0.466 0.020 0.327
F3 -1.884 0.109 0.152
F4 1.533 -0.764 -0.006
F5 0.685 1.262 -0.181
H6 -0.712 -0.523 -1.371
H7 -0.858 -1.627 0.031
H8 0.415 0.100 1.412

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 H6 H7 H8
C11.51041.38352.32882.35831.08881.08872.1838
C21.51042.35821.36511.35902.13672.13401.0888
F31.38352.35823.52992.83552.02322.01982.6219
F42.32881.36513.52992.20242.63752.54232.0014
F52.35831.35902.83552.20242.55983.28191.9894
H61.08882.13672.02322.63752.55981.79093.0663
H71.08872.13402.01982.54233.28191.79092.5514
H82.18381.08882.62192.00141.98943.06632.5514

picture of Ethane, 1,1,2-trifluoro state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 108.061 C1 C2 F5 110.430
C1 C2 H8 113.318 C2 C1 F3 109.075
C2 C1 H6 109.512 C2 C1 H7 109.306
F3 C1 H6 109.267 F3 C1 H7 108.993
F4 C2 F5 107.893 F4 C2 H8 108.776
F5 C2 H8 108.219 H6 C1 H7 110.664
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Cs)

Jump to S1C1
Energy calculated at MP2/TZVP
 hartrees
Energy at 0K-376.834827
Energy at 298.15K 
HF Energy-375.935929
Nuclear repulsion energy193.269116
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/TZVP
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' 3142 2978 49.38 109.78 0.09 0.16
2 A' 3122 2959 6.43 76.41 0.20 0.34
3 A' 1527 1447 7.03 4.58 0.75 0.86
4 A' 1475 1399 20.48 2.59 0.48 0.65
5 A' 1449 1373 28.50 3.27 0.71 0.83
6 A' 1209 1146 114.53 4.56 0.32 0.49
7 A' 1124 1065 24.19 3.41 0.75 0.86
8 A' 891 844 40.64 6.18 0.14 0.24
9 A' 773 733 53.40 2.82 0.54 0.70
10 A' 526 499 13.37 1.58 0.74 0.85
11 A' 239 226 2.31 0.23 0.48 0.65
12 A" 3193 3026 13.85 46.10 0.75 0.86
13 A" 1439 1364 28.06 1.94 0.75 0.86
14 A" 1316 1247 13.51 11.97 0.75 0.86
15 A" 1163 1103 117.23 1.23 0.75 0.86
16 A" 975 924 76.62 3.31 0.75 0.86
17 A" 377 358 0.14 0.28 0.75 0.86
18 A" 117 111 2.44 0.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12028.1 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 11401.4 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/TZVP
ABC
0.24740 0.13876 0.11366

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.737 -0.833 0.000
C2 0.356 0.627 0.000
F3 -0.387 -1.630 0.000
F4 -0.387 0.929 1.099
F5 -0.387 0.929 -1.099
H6 1.323 -1.045 -0.894
H7 1.323 -1.045 0.894
H8 1.242 1.265 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 H6 H7 H8
C11.50901.37802.36142.36141.08991.08992.1577
C21.50902.37621.36041.36042.12872.12871.0917
F31.37802.37622.78492.78492.01652.01653.3218
F42.36141.36042.78492.19753.28552.62001.9936
F52.36141.36042.78492.19752.62003.28551.9936
H61.08992.12872.01653.28552.62001.78842.4784
H71.08992.12872.01652.62003.28551.78842.4784
H82.15771.09173.32181.99361.99362.47842.4784

picture of Ethane, 1,1,2-trifluoro state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 110.655 C1 C2 F5 110.655
C1 C2 H8 111.115 C2 C1 F3 110.705
C2 C1 H6 108.917 C2 C1 H7 108.917
F3 C1 H6 109.023 F3 C1 H7 109.023
F4 C2 F5 107.736 F4 C2 H8 108.283
F5 C2 H8 108.283 H6 C1 H7 110.249
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability