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: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-317.554825
Energy at 298.15K 
HF Energy-317.554825
Nuclear repulsion energy187.274171
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 mPW1PW91/6-31+G**
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 3158 3006 25.04 48.98 0.74 0.85
2 A 3098 2948 4.08 250.08 0.02 0.03
3 A 3075 2927 6.97 83.43 0.19 0.32
4 A 1520 1447 0.41 12.14 0.75 0.86
5 A 1463 1393 12.05 6.79 0.74 0.85
6 A 1436 1367 8.53 1.52 0.32 0.48
7 A 1319 1255 0.75 17.44 0.70 0.83
8 A 1246 1186 0.41 6.17 0.66 0.80
9 A 1131 1076 23.67 1.82 0.75 0.85
10 A 1016 967 49.85 5.23 0.64 0.78
11 A 884 841 0.12 9.47 0.11 0.19
12 A 534 509 3.38 0.67 0.69 0.82
13 A 241 230 4.86 0.28 0.21 0.34
14 A 85 81 4.67 0.07 0.74 0.85
15 B 3158 3006 21.92 44.75 0.75 0.86
16 B 3128 2977 20.10 78.10 0.75 0.86
17 B 3094 2945 56.35 42.83 0.75 0.86
18 B 1519 1446 5.50 0.05 0.75 0.86
19 B 1424 1355 12.85 0.73 0.75 0.86
20 B 1392 1325 4.60 1.07 0.75 0.86
21 B 1262 1201 5.86 0.98 0.75 0.86
22 B 1129 1075 10.84 1.18 0.75 0.86
23 B 1096 1043 128.09 3.36 0.75 0.86
24 B 969 922 31.66 3.22 0.75 0.86
25 B 787 749 2.29 0.86 0.75 0.86
26 B 417 397 8.46 0.37 0.75 0.86
27 B 174 166 10.80 0.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 19877.2 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 18919.1 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 mPW1PW91/6-31+G**
ABC
0.31326 0.09543 0.09018

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.958
C2 0.000 1.265 0.129
C3 0.000 -1.265 0.129
F4 1.187 1.348 -0.603
F5 -1.187 -1.348 -0.603
H6 0.882 -0.006 1.608
H7 -0.882 0.006 1.608
H8 -0.825 1.277 -0.588
H9 -0.053 2.155 0.762
H10 0.825 -1.277 -0.588
H11 0.053 -2.155 0.762

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 H6 H7 H8 H9 H10 H11
C11.51301.51302.38052.38051.09561.09562.16852.16472.16852.1647
C21.51302.53041.39732.96242.14062.13361.09271.09322.76713.4787
C31.51302.53042.96241.39732.13362.14062.76713.47871.09271.0932
F42.38051.39732.96243.59312.61083.31282.01332.01322.65043.9271
F52.38052.96241.39733.59313.31282.61082.65043.92712.01332.0132
H61.09562.14062.13362.61083.31281.76483.06302.50242.53792.4540
H71.09562.13362.14063.31282.61081.76482.53792.45403.06302.5024
H82.16851.09272.76712.01332.65043.06302.53791.78513.04053.7910
H92.16471.09323.47872.01323.92712.50242.45401.78513.79104.3115
H102.16852.76711.09272.65042.01332.53793.06303.04053.79101.7851
H112.16473.47871.09323.92712.01322.45402.50243.79104.31151.7851

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 109.698 C1 C2 H8 111.641
C1 C2 H9 111.304 C1 C3 F5 109.698
C1 C3 H10 111.641 C1 C3 H11 111.304
C2 C1 C3 113.488 C2 C1 H6 109.244
C2 C1 H7 108.695 C3 C1 H6 108.695
C3 C1 H7 109.244 F4 C2 H8 107.278
F4 C2 H9 107.238 F5 C3 H10 107.278
F5 C3 H11 107.238 H6 C1 H7 107.293
H8 C2 H9 109.504 H10 C3 H11 109.504
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.341      
2 C -0.033      
3 C -0.033      
4 F -0.317      
5 F -0.317      
6 H 0.188      
7 H 0.188      
8 H 0.175      
9 H 0.157      
10 H 0.175      
11 H 0.157      


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 2.243 2.243
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.037 -4.864 0.000
y -4.864 -29.364 0.000
z 0.000 0.000 -29.363
Traceless
 xyz
x -3.674 -4.864 0.000
y -4.864 1.836 0.000
z 0.000 0.000 1.838
Polar
3z2-r23.676
x2-y2-3.673
xy-4.864
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.365 0.032 0.000
y 0.032 5.897 0.000
z 0.000 0.000 5.367


<r2> (average value of r2) Å2
<r2> 131.168
(<r2>)1/2 11.453