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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-277.771512
Energy at 298.15K 
HF Energy-277.016106
Nuclear repulsion energy132.446011
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' 3212 3042 14.82 36.90 0.70 0.82
2 A' 3160 2992 44.00 103.55 0.30 0.47
3 A' 3108 2944 2.52 104.20 0.02 0.03
4 A' 1527 1447 7.12 10.18 0.75 0.86
5 A' 1483 1404 89.35 2.85 0.37 0.54
6 A' 1428 1353 2.46 0.72 0.63 0.77
7 A' 1196 1132 31.86 1.22 0.02 0.03
8 A' 1181 1119 101.02 4.35 0.75 0.86
9 A' 897 850 9.37 5.53 0.23 0.37
10 A' 579 548 6.85 0.97 0.55 0.71
11 A' 478 453 13.90 1.06 0.66 0.79
12 A" 3210 3040 8.66 50.85 0.75 0.86
13 A" 1528 1447 0.48 6.82 0.75 0.86
14 A" 1446 1370 33.27 9.31 0.75 0.86
15 A" 1194 1131 146.01 2.61 0.75 0.86
16 A" 983 931 58.77 4.02 0.75 0.86
17 A" 392 372 0.07 0.37 0.75 0.86
18 A" 260 246 0.09 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13630.3 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 12909.2 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
0.31495 0.30175 0.17287

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 0.165 0.000
C2 -0.902 1.028 0.000
H3 1.265 0.717 0.000
F4 0.324 -0.643 1.100
F5 0.324 -0.643 -1.100
H6 -1.785 0.388 0.000
H7 -0.916 1.659 0.889
H8 -0.916 1.659 -0.889

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49961.09171.36511.36512.12022.13562.1356
C21.49962.18992.34702.34701.09021.09011.0901
H31.09172.18991.98701.98703.06782.53722.5372
F41.36512.34701.98702.20042.59232.62353.2857
F51.36512.34701.98702.20042.59233.28572.6235
H62.12021.09023.06782.59232.59231.77751.7775
H72.13561.09012.53722.62353.28571.77751.7783
H82.13561.09012.53723.28572.62351.77751.7783

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 108.878 C1 C2 H7 110.097
C1 C2 H8 110.097 C2 C1 H3 114.443
C2 C1 F4 109.934 C2 C1 F5 109.934
H3 C1 F4 107.430 H3 C1 F5 107.430
F4 C1 F5 107.400 H6 C2 H7 109.221
H6 C2 H8 109.221 H7 C2 H8 109.307
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability