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

using model chemistry: MP2=FULL/6-31G

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/6-31G
 hartrees
Energy at 0K-277.287374
Energy at 298.15K 
HF Energy-276.854499
Nuclear repulsion energy128.594681
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
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' 3200 3040 23.50 22.98 0.45 0.62
2 A' 3174 3015 24.13 108.18 0.39 0.56
3 A' 3096 2941 2.43 95.99 0.02 0.04
4 A' 1562 1484 5.52 17.58 0.75 0.86
5 A' 1504 1429 31.78 3.57 0.74 0.85
6 A' 1446 1374 30.09 3.52 0.75 0.86
7 A' 1210 1149 31.54 2.85 0.36 0.53
8 A' 1131 1075 71.86 5.22 0.67 0.81
9 A' 877 833 16.80 8.36 0.16 0.27
10 A' 537 510 12.63 1.25 0.43 0.60
11 A' 432 411 16.87 1.82 0.73 0.84
12 A" 3190 3031 8.82 52.62 0.75 0.86
13 A" 1562 1484 4.37 15.63 0.75 0.86
14 A" 1425 1354 33.89 7.68 0.75 0.86
15 A" 1184 1125 65.06 5.97 0.75 0.86
16 A" 959 911 75.87 7.40 0.75 0.86
17 A" 372 354 0.01 0.51 0.75 0.86
18 A" 261 248 0.13 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13560.2 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 12883.5 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
ABC
0.29132 0.28948 0.16269

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.329 0.191 0.000
C2 -0.917 1.042 0.000
H3 1.277 0.732 0.000
F4 0.329 -0.660 1.152
F5 0.329 -0.660 -1.152
H6 -1.795 0.388 0.000
H7 -0.939 1.675 0.893
H8 -0.939 1.675 -0.893

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50831.09161.43191.43192.13352.14642.1464
C21.50832.21542.40262.40261.09521.09541.0954
H31.09162.21542.04022.04023.09172.56842.5684
F41.43192.40262.04022.30312.63392.66933.3526
F51.43192.40262.04022.30312.63393.35262.6693
H62.13351.09523.09172.63392.63391.78561.7856
H72.14641.09542.56842.66933.35261.78561.7869
H82.14641.09542.56843.35262.66931.78561.7869

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 109.035 C1 C2 H7 110.038
C1 C2 H8 110.038 C2 C1 H3 115.963
C2 C1 F4 109.582 C2 C1 F5 109.582
H3 C1 F4 107.130 H3 C1 F5 107.130
F4 C1 F5 107.072 H6 C2 H7 109.203
H6 C2 H8 109.203 H7 C2 H8 109.304
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability