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=FULL/6-31G(2df,p)

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=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-376.824122
Energy at 298.15K 
HF Energy-375.808095
Nuclear repulsion energy192.484334
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/6-31G(2df,p)
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 3203 3011 20.42 35.07 0.72 0.84
2 A 3148 2959 31.05 66.03 0.32 0.49
3 A 3131 2942 12.94 92.99 0.08 0.16
4 A 1537 1445 3.80 6.72 0.74 0.85
5 A 1503 1413 16.84 2.03 0.59 0.74
6 A 1452 1365 21.34 3.48 0.74 0.85
7 A 1383 1300 19.60 2.43 0.74 0.85
8 A 1306 1228 12.12 6.73 0.72 0.84
9 A 1217 1144 97.26 3.94 0.69 0.82
10 A 1185 1114 129.74 2.36 0.74 0.85
11 A 1174 1103 58.02 1.24 0.26 0.41
12 A 1147 1078 24.83 4.98 0.34 0.51
13 A 944 887 25.06 4.61 0.28 0.44
14 A 591 556 3.77 1.59 0.32 0.49
15 A 485 456 15.12 0.56 0.72 0.84
16 A 437 411 5.43 1.17 0.49 0.66
17 A 238 224 7.01 0.03 0.55 0.71
18 A 130 122 6.40 0.01 0.69 0.81

Unscaled Zero Point Vibrational Energy (zpe) 12105.7 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 11378.1 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=FULL/6-31G(2df,p)
ABC
0.30845 0.12418 0.09554

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.760 -0.607 -0.268
C2 0.470 0.021 0.328
F3 -1.854 0.102 0.142
F4 1.536 -0.732 -0.014
F5 0.635 1.256 -0.181
H6 -0.679 -0.576 -1.355
H7 -0.842 -1.641 0.066
H8 0.414 0.098 1.415

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 H6 H7 H8
C11.50451.36622.31352.32891.09031.08982.1698
C21.50452.33271.34911.34522.12282.13401.0914
F31.36622.33273.49422.76182.01942.01752.6010
F42.31351.34913.49422.18842.59352.54711.9972
F52.32891.34522.76182.18842.54073.26101.9844
H61.09032.12282.01942.59352.54071.78383.0526
H71.08982.13402.01752.54713.26101.78382.5339
H82.16981.09142.60101.99721.98443.05262.5339

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 108.216 C1 C2 F5 109.499
C1 C2 H8 112.433 C2 C1 F3 108.601
C2 C1 H6 108.738 C2 C1 H7 109.651
F3 C1 H6 110.074 F3 C1 H7 109.945
F4 C2 F5 108.629 F4 C2 H8 109.387
F5 C2 H8 108.609 H6 C1 H7 109.805
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Cs)

Jump to S1C1
Energy calculated at MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-376.822315
Energy at 298.15K 
HF Energy-375.805762
Nuclear repulsion energy195.611587
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/6-31G(2df,p)
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' 3130 2942 55.30 107.28 0.03 0.06
2 A' 3117 2929 6.79 43.82 0.64 0.78
3 A' 1532 1440 5.09 5.97 0.74 0.85
4 A' 1480 1391 27.99 2.34 0.44 0.62
5 A' 1455 1368 18.21 2.54 0.73 0.84
6 A' 1230 1156 101.78 4.88 0.35 0.52
7 A' 1150 1081 14.86 2.42 0.75 0.86
8 A' 915 860 27.36 7.00 0.16 0.27
9 A' 783 736 43.62 2.24 0.47 0.64
10 A' 528 496 11.12 1.17 0.75 0.85
11 A' 238 224 1.44 0.08 0.36 0.53
12 A" 3190 2998 17.11 44.56 0.75 0.86
13 A" 1448 1361 30.64 1.29 0.75 0.86
14 A" 1322 1242 17.70 11.85 0.75 0.86
15 A" 1199 1127 93.26 0.83 0.75 0.86
16 A" 998 938 43.65 2.83 0.75 0.86
17 A" 377 354 0.17 0.11 0.75 0.86
18 A" 126 118 1.72 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12108.2 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 11380.5 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 MP2=FULL/6-31G(2df,p)
ABC
0.24921 0.14492 0.11851

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.745 -0.821 0.000
C2 0.355 0.631 0.000
F3 -0.389 -1.580 0.000
F4 -0.389 0.897 1.090
F5 -0.389 0.897 -1.090
H6 1.335 -1.037 -0.892
H7 1.335 -1.037 0.892
H8 1.232 1.284 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 H6 H7 H8
C11.50351.36392.32972.32971.09081.09082.1609
C21.50352.33271.34651.34652.13022.13021.0934
F31.36392.33272.70692.70692.01492.01493.2908
F42.32971.34652.70692.18093.26222.59861.9911
F52.32971.34652.70692.18092.59863.26221.9911
H61.09082.13022.01493.26222.59861.78332.4888
H71.09082.13022.01492.59863.26221.78332.4888
H82.16091.09343.29081.99111.99112.48882.4888

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 109.531 C1 C2 F5 109.531
C1 C2 H8 111.658 C2 C1 F3 108.784
C2 C1 H6 109.359 C2 C1 H7 109.359
F3 C1 H6 109.832 F3 C1 H7 109.832
F4 C2 F5 108.157 F4 C2 H8 108.946
F5 C2 H8 108.946 H6 C1 H7 109.657
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability