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: MP2/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2/6-311+G(3df,2p)
 hartrees
Energy at 0K-317.097022
Energy at 298.15K 
HF Energy-316.081378
Nuclear repulsion energy188.549911
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 MP2/6-311+G(3df,2p)
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 3172 2992 17.71 42.07 0.72 0.84
2 A 3106 2930 3.73 237.22 0.02 0.03
3 A 3083 2908 5.58 86.97 0.13 0.23
4 A 1537 1450 0.54 7.23 0.74 0.85
5 A 1471 1388 8.86 4.00 0.71 0.83
6 A 1447 1365 7.58 0.98 0.05 0.09
7 A 1328 1253 1.13 10.25 0.63 0.77
8 A 1258 1187 0.60 3.65 0.51 0.67
9 A 1140 1076 22.41 1.59 0.73 0.84
10 A 1022 964 46.17 4.24 0.59 0.74
11 A 895 844 0.11 11.21 0.05 0.10
12 A 542 511 3.06 0.54 0.62 0.77
13 A 249 235 4.52 0.29 0.18 0.31
14 A 85 80 4.14 0.10 0.73 0.85
15 B 3172 2992 16.58 34.83 0.75 0.86
16 B 3143 2965 14.04 61.47 0.75 0.86
17 B 3104 2928 50.11 31.21 0.75 0.86
18 B 1537 1450 5.22 0.11 0.75 0.86
19 B 1426 1346 11.83 0.05 0.75 0.86
20 B 1401 1322 0.91 0.47 0.75 0.86
21 B 1277 1205 7.40 0.41 0.75 0.86
22 B 1138 1074 8.86 0.90 0.75 0.86
23 B 1103 1040 109.89 3.18 0.75 0.86
24 B 975 920 28.01 2.44 0.75 0.86
25 B 790 745 1.97 0.69 0.75 0.86
26 B 421 397 7.98 0.29 0.75 0.86
27 B 192 182 10.62 0.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 20005.5 cm-1
Scaled (by 0.9434) Zero Point Vibrational Energy (zpe) 18873.2 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 MP2/6-311+G(3df,2p)
ABC
0.30902 0.09880 0.09280

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.974
C2 0.000 1.253 0.131
C3 0.000 -1.253 0.131
F4 1.176 1.307 -0.612
F5 -1.176 -1.307 -0.612
H6 0.882 -0.004 1.617
H7 -0.882 0.004 1.617
H8 -0.832 1.259 -0.571
H9 -0.038 2.148 0.751
H10 0.832 -1.259 -0.571
H11 0.038 -2.148 0.751

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 H6 H7 H8 H9 H10 H11
C11.51001.51002.36752.36751.09161.09162.15942.16032.15942.1603
C21.51002.50681.39202.91402.13682.13161.08881.08902.73843.4579
C31.51002.50682.91401.39202.13162.13682.73843.45791.08881.0890
F42.36751.39202.91403.51642.60243.30122.00892.00912.58983.8850
F52.36752.91401.39203.51643.30122.60242.58983.88502.00892.0091
H61.09162.13682.13162.60243.30121.76433.05282.49612.52212.4616
H71.09162.13162.13683.30122.60241.76432.52212.46163.05282.4961
H82.15941.08882.73842.00892.58983.05282.52211.77973.01893.7570
H92.16031.08903.45792.00913.88502.49612.46161.77973.75704.2975
H102.15942.73841.08882.58982.00892.52213.05283.01893.75701.7797
H112.16033.45791.08903.88502.00912.46162.49613.75704.29751.7797

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 109.264 C1 C2 H8 111.354
C1 C2 H9 111.410 C1 C3 F5 109.264
C1 C3 H10 111.354 C1 C3 H11 111.410
C2 C1 C3 112.204 C2 C1 H6 109.383
C2 C1 H7 108.972 C3 C1 H6 108.972
C3 C1 H7 109.383 F4 C2 H8 107.524
F4 C2 H9 107.521 F5 C3 H10 107.524
F5 C3 H11 107.521 H6 C1 H7 107.827
H8 C2 H9 109.614 H10 C3 H11 109.614
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability