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All results from a given calculation for CH2FCH2CH2F (1,3-difluoropropane)

using model chemistry: CISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CISD/6-31G*
 hartrees
Energy at 0K-316.613797
Energy at 298.15K 
HF Energy-315.961112
Nuclear repulsion energy189.401311
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 CISD/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 3260 3018 33.26      
2 A 3201 2964 4.92      
3 A 3172 2937 8.08      
4 A 1621 1501 0.36      
5 A 1566 1450 8.59      
6 A 1530 1416 14.46      
7 A 1383 1281 0.13      
8 A 1313 1215 0.92      
9 A 1195 1106 26.74      
10 A 1080 1000 39.59      
11 A 930 861 0.06      
12 A 574 532 4.24      
13 A 262 242 4.42      
14 A 91 84 3.84      
15 B 3260 3018 35.33      
16 B 3222 2983 23.88      
17 B 3197 2959 62.09      
18 B 1624 1504 2.18      
19 B 1513 1400 16.18      
20 B 1479 1370 6.73      
21 B 1327 1229 7.63      
22 B 1198 1109 23.60      
23 B 1170 1084 88.67      
24 B 1027 951 23.40      
25 B 830 768 2.50      
26 B 434 402 8.25      
27 B 212 196 12.45      

Unscaled Zero Point Vibrational Energy (zpe) 20834.6 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 19288.7 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 CISD/6-31G*
ABC
0.30103 0.10249 0.09519

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.990
C2 0.000 1.252 0.144
C3 0.000 -1.252 0.144
F4 1.150 1.267 -0.634
F5 -1.150 -1.267 -0.634
H6 0.881 -0.003 1.633
H7 -0.881 0.003 1.633
H8 -0.856 1.273 -0.525
H9 0.001 2.150 0.759
H10 0.856 -1.273 -0.525
H11 -0.001 -2.150 0.759

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 H6 H7 H8 H9 H10 H11
C11.51071.51072.35902.35901.09051.09052.15572.16232.15572.1623
C21.51072.50361.38832.87632.13692.13351.08651.08802.74843.4567
C31.51072.50362.87631.38832.13352.13692.74843.45671.08651.0880
F42.35901.38832.87633.42212.61253.29552.00842.00922.55943.8652
F52.35902.87631.38833.42213.29552.61252.55943.86522.00842.0092
H61.09052.13692.13352.61253.29551.76143.04952.48462.50402.4803
H71.09052.13352.13693.29552.61251.76142.50402.48033.04952.4846
H82.15571.08652.74842.00842.55943.04952.50401.77493.06743.7539
H92.16231.08803.45672.00923.86522.48462.48031.77493.75394.2997
H102.15572.74841.08652.55942.00842.50403.04953.06743.75391.7749
H112.16233.45671.08803.86522.00922.48032.48463.75394.29971.7749

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 108.847 C1 C2 H8 111.148
C1 C2 H9 111.589 C1 C3 F5 108.847
C1 C3 H10 111.148 C1 C3 H11 111.589
C2 C1 C3 111.913 C2 C1 H6 109.409
C2 C1 H7 109.145 C3 C1 H6 109.145
C3 C1 H7 109.409 F4 C2 H8 107.865
F4 C2 H9 107.844 F5 C3 H10 107.865
F5 C3 H11 107.844 H6 C1 H7 107.726
H8 C2 H9 109.417 H10 C3 H11 109.417
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability