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

using model chemistry: HF/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/3-21G
 hartrees
Energy at 0K-314.247661
Energy at 298.15K 
HF Energy-314.247661
Nuclear repulsion energy189.738489
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 HF/3-21G
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 3330 3016 24.06 47.56 0.71 0.83
2 A 3272 2963 3.57 172.13 0.02 0.04
3 A 3239 2933 6.66 64.36 0.34 0.51
4 A 1691 1531 0.97 21.68 0.74 0.85
5 A 1632 1478 6.96 11.79 0.75 0.85
6 A 1582 1433 9.74 2.49 0.73 0.85
7 A 1447 1311 0.29 28.61 0.70 0.83
8 A 1364 1235 0.61 13.61 0.74 0.85
9 A 1217 1102 12.67 2.34 0.75 0.85
10 A 1095 991 41.55 6.25 0.63 0.77
11 A 919 833 0.74 15.72 0.13 0.23
12 A 597 540 4.11 0.96 0.69 0.82
13 A 272 246 7.08 0.26 0.31 0.48
14 A 91 83 5.06 0.02 0.53 0.69
15 B 3331 3017 26.19 29.05 0.75 0.86
16 B 3284 2974 22.09 64.72 0.75 0.86
17 B 3266 2957 56.96 55.06 0.75 0.86
18 B 1699 1539 3.37 0.10 0.75 0.86
19 B 1558 1411 7.91 1.20 0.75 0.86
20 B 1534 1389 7.01 1.12 0.75 0.86
21 B 1361 1233 10.66 1.50 0.75 0.86
22 B 1221 1106 31.30 0.09 0.75 0.86
23 B 1160 1050 47.80 7.72 0.75 0.86
24 B 1057 957 21.87 5.07 0.75 0.86
25 B 856 775 2.19 1.49 0.75 0.86
26 B 416 377 10.78 0.37 0.75 0.86
27 B 217 196 18.45 0.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 21353.4 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 19337.7 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 HF/3-21G
ABC
0.28453 0.10780 0.09880

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.034
C2 0.000 1.239 0.154
C3 0.000 -1.239 0.154
F4 1.154 1.187 -0.660
F5 -1.154 -1.187 -0.660
H6 0.881 -0.006 1.663
H7 -0.881 0.006 1.663
H8 -0.865 1.233 -0.487
H9 0.031 2.148 0.735
H10 0.865 -1.233 -0.487
H11 -0.031 -2.148 0.735

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 H6 H7 H8 H9 H10 H11
C11.51951.51952.36822.36821.08221.08222.14012.16852.14012.1685
C21.51952.47811.41312.80682.14502.13801.07651.07862.69623.4361
C31.51952.47812.80681.41312.13802.14502.69623.43611.07651.0786
F42.36821.41312.80683.31042.62493.30572.02682.03212.44303.8033
F52.36822.80681.41313.31043.30572.62492.44303.80332.02682.0321
H61.08222.14502.13802.62493.30571.76203.03352.49442.47472.5056
H71.08222.13802.14503.30572.62491.76202.47472.50563.03352.4944
H82.14011.07652.69622.02682.44303.03352.47471.76923.01223.6899
H92.16851.07863.43612.03213.80332.49442.50561.76923.68994.2956
H102.14012.69621.07652.44302.02682.47473.03353.01223.68991.7692
H112.16853.43611.07863.80332.03212.50562.49443.68994.29561.7692

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 107.654 C1 C2 H8 109.877
C1 C2 H9 112.043 C1 C3 F5 107.654
C1 C3 H10 109.877 C1 C3 H11 112.043
C2 C1 C3 109.255 C2 C1 H6 109.927
C2 C1 H7 109.369 C3 C1 H6 109.369
C3 C1 H7 109.927 F4 C2 H8 108.239
F4 C2 H9 108.542 F5 C3 H10 108.239
F5 C3 H11 108.542 H6 C1 H7 108.982
H8 C2 H9 110.364 H10 C3 H11 110.364
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.563      
2 C 0.017      
3 C 0.017      
4 F -0.411      
5 F -0.411      
6 H 0.235      
7 H 0.235      
8 H 0.232      
9 H 0.209      
10 H 0.232      
11 H 0.209      


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 2.622 2.622
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.724 -4.631 0.000
y -4.631 -27.889 0.000
z 0.000 0.000 -29.776
Traceless
 xyz
x -3.891 -4.631 0.000
y -4.631 3.361 0.000
z 0.000 0.000 0.530
Polar
3z2-r21.061
x2-y2-4.834
xy-4.631
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.161 -0.024 0.000
y -0.024 4.493 0.000
z 0.000 0.000 4.128


<r2> (average value of r2) Å2
<r2> 123.487
(<r2>)1/2 11.112