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All results from a given calculation for CH3CHF2 (Ethane, 1,1-difluoro-)

using model chemistry: MP2=FULL/6-311G**

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/6-311G**
 hartrees
Energy at 0K-277.802012
Energy at 298.15K 
HF Energy-277.022765
Nuclear repulsion energy132.472318
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/6-311G**
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' 3214 3049 13.78 37.22 0.71 0.83
2 A' 3156 2994 44.79 104.25 0.29 0.45
3 A' 3109 2949 2.51 110.41 0.02 0.03
4 A' 1506 1429 6.82 9.52 0.75 0.85
5 A' 1473 1397 85.42 2.46 0.34 0.51
6 A' 1411 1338 1.11 0.70 0.60 0.75
7 A' 1186 1125 61.18 1.71 0.24 0.39
8 A' 1181 1120 68.87 3.96 0.63 0.77
9 A' 895 849 9.45 5.39 0.21 0.35
10 A' 578 548 6.88 0.97 0.54 0.70
11 A' 477 452 13.67 1.04 0.65 0.78
12 A" 3212 3047 8.60 49.91 0.75 0.86
13 A" 1508 1431 0.00 5.61 0.75 0.86
14 A" 1442 1368 32.03 9.51 0.75 0.86
15 A" 1191 1130 145.29 2.51 0.75 0.86
16 A" 980 929 54.09 3.67 0.75 0.86
17 A" 390 370 0.04 0.37 0.75 0.86
18 A" 258 245 0.09 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13582.1 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 12884.0 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/6-311G**
ABC
0.31513 0.30181 0.17296

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.324 0.164 0.000
C2 -0.903 1.028 0.000
H3 1.262 0.722 0.000
F4 0.324 -0.643 1.100
F5 0.324 -0.643 -1.100
H6 -1.786 0.387 0.000
H7 -0.914 1.658 0.890
H8 -0.914 1.658 -0.890

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50101.09171.36411.36412.12132.13462.1346
C21.50102.18712.34702.34701.09081.09071.0907
H31.09172.18711.98831.98833.06632.53052.5305
F41.36412.34701.98832.19952.59232.62113.2844
F51.36412.34701.98832.19952.59233.28442.6211
H62.12131.09083.06632.59232.59231.78021.7802
H72.13461.09072.53052.62113.28441.78021.7809
H82.13461.09072.53053.28442.62111.78021.7809

picture of Ethane, 1,1-difluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 108.835 C1 C2 H7 109.890
C1 C2 H8 109.890 C2 C1 H3 114.110
C2 C1 F4 109.913 C2 C1 F5 109.913
H3 C1 F4 107.606 H3 C1 F5 107.606
F4 C1 F5 107.451 H6 C2 H7 109.379
H6 C2 H8 109.379 H7 C2 H8 109.450
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability