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 CH2FCH2CH2F (1,3-difluoropropane)

using model chemistry: QCISD/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at QCISD/aug-cc-pVTZ
 hartrees
Energy at 0K-317.166000
Energy at 298.15K 
HF Energy-316.091757
Nuclear repulsion energy188.023631
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 QCISD/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD/aug-cc-pVTZ
ABC
0.31090 0.09735 0.09175

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.969
C2 0.000 1.259 0.128
C3 0.000 -1.259 0.128
F4 1.182 1.323 -0.606
F5 -1.182 -1.323 -0.606
H6 0.883 -0.005 1.612
H7 -0.883 0.005 1.612
H8 -0.827 1.263 -0.582
H9 -0.048 2.152 0.751
H10 0.827 -1.263 -0.582
H11 0.048 -2.152 0.751

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 H6 H7 H8 H9 H10 H11
C11.51401.51402.37252.37251.09291.09292.16442.16372.16442.1637
C21.51402.51791.39302.93312.14042.13461.09001.09022.74763.4679
C31.51402.51792.93311.39302.13462.14042.74763.46791.09001.0902
F42.37251.39302.93313.54862.60293.30542.01072.01042.61063.8996
F52.37252.93311.39303.54863.30542.60292.61063.89962.01072.0104
H61.09292.14042.13462.60293.30541.76663.05762.50242.53002.4600
H71.09292.13462.14043.30542.60291.76662.53002.46003.05762.5024
H82.16441.09002.74762.01072.61063.05762.53001.78173.02013.7692
H92.16371.09023.46792.01043.89962.50242.46001.78173.76924.3055
H102.16442.74761.09002.61062.01072.53003.05763.02013.76921.7817
H112.16373.46791.09023.89962.01042.46002.50243.76924.30551.7817

picture of 1,3-difluoropropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 109.330 C1 C2 H8 111.398
C1 C2 H9 111.336 C1 C3 F5 109.330
C1 C3 H10 111.398 C1 C3 H11 111.336
C2 C1 C3 112.511 C2 C1 H6 109.319
C2 C1 H7 108.868 C3 C1 H6 108.868
C3 C1 H7 109.319 F4 C2 H8 107.520
F4 C2 H9 107.486 F5 C3 H10 107.520
F5 C3 H11 107.486 H6 C1 H7 107.846
H8 C2 H9 109.616 H10 C3 H11 109.616
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability