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: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-317.237349
Energy at 298.15K 
HF Energy-317.237349
Nuclear repulsion energy187.220300
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 PBEPBEultrafine/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3032 2982 45.56 48.01 0.70 0.82
2 A 2991 2941 7.79 195.61 0.04 0.07
3 A 2978 2929 0.02 89.47 0.17 0.29
4 A 1493 1468 1.23 18.37 0.71 0.83
5 A 1440 1417 7.39 11.28 0.75 0.86
6 A 1410 1387 13.51 3.70 0.73 0.84
7 A 1283 1262 0.00 27.65 0.71 0.83
8 A 1217 1197 0.37 11.39 0.72 0.83
9 A 1100 1081 20.99 1.46 0.72 0.84
10 A 997 980 37.62 5.38 0.71 0.83
11 A 866 851 0.00 8.91 0.17 0.29
12 A 529 520 2.97 0.72 0.72 0.84
13 A 241 237 2.93 0.21 0.29 0.45
14 A 88 86 2.42 0.02 0.49 0.66
15 B 3043 2993 41.39 17.21 0.75 0.86
16 B 3024 2974 18.34 110.41 0.75 0.86
17 B 2978 2929 81.52 41.80 0.75 0.86
18 B 1497 1473 4.27 0.07 0.75 0.86
19 B 1378 1356 13.18 4.57 0.75 0.86
20 B 1362 1340 3.41 0.81 0.75 0.86
21 B 1226 1206 5.75 1.54 0.75 0.86
22 B 1105 1087 19.71 0.47 0.75 0.86
23 B 1071 1053 79.28 3.57 0.75 0.86
24 B 953 937 20.17 4.24 0.75 0.86
25 B 763 751 1.36 0.72 0.75 0.86
26 B 406 399 5.63 0.30 0.75 0.86
27 B 191 188 9.35 0.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 19330.4 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 19011.5 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 PBEPBEultrafine/6-31G*
ABC
0.29700 0.09943 0.09245

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.994
C2 0.000 1.264 0.144
C3 0.000 -1.264 0.144
F4 1.161 1.299 -0.638
F5 -1.161 -1.299 -0.638
H6 0.891 -0.005 1.649
H7 -0.891 0.005 1.649
H8 -0.874 1.270 -0.532
H9 -0.025 2.172 0.775
H10 0.874 -1.270 -0.532
H11 0.025 -2.172 0.775

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 H6 H7 H8 H9 H10 H11
C11.52281.52282.38752.38751.10571.10572.16922.18282.16922.1828
C21.52282.52711.40072.91992.16052.15431.10511.10582.76393.4926
C31.52282.52712.91991.40072.15432.16052.76393.49261.10511.1058
F42.38751.40072.91993.48432.64663.33402.03842.04092.58673.9156
F52.38752.91991.40073.48433.33402.64662.58673.91562.03842.0409
H61.10572.16052.15432.64663.33401.78223.08172.51822.52072.4915
H71.10572.15432.16053.33402.64661.78222.52072.49153.08172.5182
H82.16921.10512.76392.03842.58673.08172.52071.80063.08333.7893
H92.18281.10583.49262.04093.91562.51822.49151.80063.78934.3435
H102.16922.76391.10512.58672.03842.52073.08173.08333.78931.8006
H112.18283.49261.10583.91562.04092.49152.51823.78934.34351.8006

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 109.431 C1 C2 H8 110.251
C1 C2 H9 111.291 C1 C3 F5 109.431
C1 C3 H10 110.251 C1 C3 H11 111.291
C2 C1 C3 112.143 C2 C1 H6 109.538
C2 C1 H7 109.054 C3 C1 H6 109.054
C3 C1 H7 109.538 F4 C2 H8 108.295
F4 C2 H9 108.447 F5 C3 H10 108.295
F5 C3 H11 108.447 H6 C1 H7 107.399
H8 C2 H9 109.056 H10 C3 H11 109.056
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.363      
2 C -0.001      
3 C -0.001      
4 F -0.286      
5 F -0.286      
6 H 0.165      
7 H 0.165      
8 H 0.158      
9 H 0.145      
10 H 0.158      
11 H 0.145      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.819 1.819
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.146 -3.430 0.000
y -3.430 -28.654 0.000
z 0.000 0.000 -28.978
Traceless
 xyz
x -2.330 -3.430 0.000
y -3.430 1.408 0.000
z 0.000 0.000 0.922
Polar
3z2-r21.844
x2-y2-2.492
xy-3.430
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.956 -0.003 0.000
y -0.003 5.609 0.000
z 0.000 0.000 4.992


<r2> (average value of r2) Å2
<r2> 128.764
(<r2>)1/2 11.347