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

using model chemistry: MP2=FULL/aug-cc-pVQZ

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/aug-cc-pVQZ
 hartrees
Energy at 0K-278.123588
Energy at 298.15K 
HF Energy-277.077947
Nuclear repulsion energy133.003267
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/aug-cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/aug-cc-pVQZ
ABC
0.31845 0.30353 0.17436

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.321 0.167 0.000
C2 -0.896 1.028 0.000
H3 1.258 0.714 0.000
F4 0.321 -0.644 1.094
F5 0.321 -0.644 -1.094
H6 -1.777 0.397 0.000
H7 -0.900 1.655 0.884
H8 -0.900 1.655 -0.884

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49121.08581.36141.36142.11032.11802.1180
C21.49122.17742.33962.33961.08361.08341.0834
H31.08582.17741.97991.97993.05182.51482.5148
F41.36142.33961.97992.18772.58462.61103.2688
F51.36142.33961.97992.18772.58463.26882.6110
H62.11031.08363.05182.58462.58461.76981.7698
H72.11801.08342.51482.61103.26881.76981.7678
H82.11801.08342.51483.26882.61101.76981.7678

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 109.068 C1 C2 H7 109.690
C1 C2 H8 109.690 C2 C1 H3 114.411
C2 C1 F4 110.119 C2 C1 F5 110.119
H3 C1 F4 107.475 H3 C1 F5 107.475
F4 C1 F5 106.930 H6 C2 H7 109.513
H6 C2 H8 109.513 H7 C2 H8 109.352
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability