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: HF/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-315.985365
Energy at 298.15K 
HF Energy-315.985365
Nuclear repulsion energy189.778488
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/6-31G(2df,p)
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 2952 46.88 43.35 0.75 0.86
2 A 3209 2906 6.71 200.74 0.01 0.02
3 A 3178 2877 10.68 56.24 0.36 0.53
4 A 1646 1491 0.55 12.17 0.74 0.85
5 A 1585 1436 11.03 7.21 0.70 0.82
6 A 1572 1423 9.39 2.12 0.55 0.71
7 A 1420 1285 1.27 19.64 0.70 0.82
8 A 1352 1224 1.05 5.64 0.61 0.76
9 A 1231 1115 33.70 1.74 0.74 0.85
10 A 1110 1005 42.28 4.33 0.68 0.81
11 A 922 834 0.01 12.40 0.12 0.22
12 A 578 524 4.08 0.48 0.67 0.80
13 A 260 235 3.86 0.18 0.17 0.28
14 A 90 81 3.88 0.00 0.58 0.74
15 B 3261 2953 48.40 33.84 0.75 0.86
16 B 3224 2919 43.65 65.08 0.75 0.86
17 B 3203 2900 64.19 54.40 0.75 0.86
18 B 1648 1492 2.40 0.00 0.75 0.86
19 B 1551 1404 19.47 0.62 0.75 0.86
20 B 1514 1371 2.55 0.50 0.75 0.86
21 B 1375 1245 8.13 0.52 0.75 0.86
22 B 1222 1106 73.85 0.73 0.75 0.86
23 B 1191 1078 68.45 4.33 0.75 0.86
24 B 1041 943 18.90 3.39 0.75 0.86
25 B 844 764 3.58 1.07 0.75 0.86
26 B 443 401 8.06 0.19 0.75 0.86
27 B 201 182 10.71 0.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 21064.4 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 19073.8 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/6-31G(2df,p)
ABC
0.31131 0.10039 0.09369

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.975
C2 0.000 1.262 0.134
C3 0.000 -1.262 0.134
F4 1.136 1.309 -0.618
F5 -1.136 -1.309 -0.618
H6 0.878 -0.006 1.616
H7 -0.878 0.006 1.616
H8 -0.850 1.281 -0.538
H9 -0.024 2.146 0.761
H10 0.850 -1.281 -0.538
H11 0.024 -2.146 0.761

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 H6 H7 H8 H9 H10 H11
C11.51631.51632.35382.35381.08691.08692.15622.15722.15622.1572
C21.51632.52401.36322.90942.13842.13181.08311.08422.76403.4656
C31.51632.52402.90941.36322.13182.13842.76403.46561.08311.0842
F42.35381.36322.90943.46582.60493.27781.98731.98742.60673.8827
F52.35382.90941.36323.46583.27782.60492.60673.88271.98731.9874
H61.08692.13842.13182.60493.27781.75533.04552.48522.50282.4582
H71.08692.13182.13843.27782.60491.75532.50282.45823.04552.4852
H82.15621.08312.76401.98732.60673.04552.50281.76493.07433.7678
H92.15721.08423.46561.98743.88272.48522.45821.76493.76784.2932
H102.15622.76401.08312.60671.98732.50283.04553.07433.76781.7649
H112.15723.46561.08423.88271.98742.45822.48523.76784.29321.7649

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 109.543 C1 C2 H8 110.994
C1 C2 H9 111.009 C1 C3 F5 109.543
C1 C3 H10 110.994 C1 C3 H11 111.009
C2 C1 C3 112.667 C2 C1 H6 109.347
C2 C1 H7 108.833 C3 C1 H6 108.833
C3 C1 H7 109.347 F4 C2 H8 108.109
F4 C2 H9 108.050 F5 C3 H10 108.109
F5 C3 H11 108.050 H6 C1 H7 107.693
H8 C2 H9 109.043 H10 C3 H11 109.043
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.316      
2 C 0.045      
3 C 0.045      
4 F -0.296      
5 F -0.296      
6 H 0.140      
7 H 0.140      
8 H 0.141      
9 H 0.128      
10 H 0.141      
11 H 0.128      


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 2.047 2.047
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.734 -4.114 0.000
y -4.114 -28.634 0.000
z 0.000 0.000 -29.081
Traceless
 xyz
x -2.877 -4.114 0.000
y -4.114 1.774 0.000
z 0.000 0.000 1.103
Polar
3z2-r22.206
x2-y2-3.100
xy-4.114
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.765 0.010 0.000
y 0.010 5.339 0.000
z 0.000 0.000 4.816


<r2> (average value of r2) Å2
<r2> 127.022
(<r2>)1/2 11.270