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: BLYP/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 BLYP/6-31G*
 hartrees
Energy at 0K-317.501116
Energy at 298.15K 
HF Energy-317.501116
Nuclear repulsion energy186.167349
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 BLYP/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 3018 2993 49.59 46.05 0.75 0.85
2 A 2975 2951 10.53 233.78 0.00 0.01
3 A 2963 2939 1.82 47.12 0.67 0.80
4 A 1502 1490 1.13 18.50 0.72 0.84
5 A 1455 1443 4.57 12.07 0.75 0.86
6 A 1417 1406 15.23 3.73 0.74 0.85
7 A 1285 1274 0.01 27.99 0.72 0.83
8 A 1217 1208 0.73 11.98 0.72 0.84
9 A 1092 1083 13.40 1.99 0.74 0.85
10 A 974 966 44.91 5.19 0.69 0.82
11 A 846 839 0.01 9.56 0.16 0.28
12 A 526 522 3.28 0.78 0.71 0.83
13 A 241 239 2.93 0.22 0.31 0.47
14 A 86 86 2.57 0.02 0.56 0.72
15 B 3022 2998 55.57 16.39 0.75 0.86
16 B 3003 2978 17.31 108.84 0.75 0.86
17 B 2967 2943 82.93 45.28 0.75 0.86
18 B 1506 1494 3.59 0.08 0.75 0.86
19 B 1382 1371 16.14 5.03 0.75 0.86
20 B 1373 1361 0.84 0.67 0.75 0.86
21 B 1225 1215 5.17 1.71 0.75 0.86
22 B 1100 1092 17.98 0.32 0.75 0.86
23 B 1041 1033 70.17 3.46 0.75 0.86
24 B 944 936 30.61 4.46 0.75 0.86
25 B 765 758 2.75 0.99 0.75 0.86
26 B 404 400 5.95 0.32 0.75 0.86
27 B 189 188 9.54 0.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 19258.5 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 19102.5 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 BLYP/6-31G*
ABC
0.29379 0.09811 0.09125

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.999
C2 0.000 1.272 0.147
C3 0.000 -1.272 0.147
F4 1.171 1.307 -0.642
F5 -1.171 -1.307 -0.642
H6 0.891 -0.006 1.653
H7 -0.891 0.006 1.653
H8 -0.871 1.284 -0.530
H9 -0.018 2.179 0.778
H10 0.871 -1.284 -0.530
H11 0.018 -2.179 0.778

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 H6 H7 H8 H9 H10 H11
C11.53131.53132.40252.40251.10521.10522.17852.19002.17852.1900
C21.53132.54481.41222.94042.16732.15981.10351.10462.78423.5084
C31.53132.54482.94041.41222.15982.16732.78423.50841.10351.1046
F42.40251.41222.94043.50892.65933.34812.04482.04702.61043.9365
F52.40252.94041.41223.50893.34812.65932.61043.93652.04482.0470
H61.10522.16732.15982.65933.34811.78173.08812.52302.52982.4994
H71.10522.15982.16733.34812.65931.78172.52982.49943.08812.5230
H82.17851.10352.78422.04482.61043.08812.52981.80033.10293.8068
H92.19001.10463.50842.04703.93652.52302.49941.80033.80684.3577
H102.17852.78421.10352.61042.04482.52983.08813.10293.80681.8003
H112.19003.50841.10463.93652.04702.49942.52303.80684.35771.8003

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 109.346 C1 C2 H8 110.497
C1 C2 H9 111.341 C1 C3 F5 109.346
C1 C3 H10 110.497 C1 C3 H11 111.341
C2 C1 C3 112.391 C2 C1 H6 109.516
C2 C1 H7 108.935 C3 C1 H6 108.935
C3 C1 H7 109.516 F4 C2 H8 108.114
F4 C2 H9 108.219 F5 C3 H10 108.114
F5 C3 H11 108.219 H6 C1 H7 107.423
H8 C2 H9 109.240 H10 C3 H11 109.240
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.285      
2 C 0.051      
3 C 0.051      
4 F -0.296      
5 F -0.296      
6 H 0.133      
7 H 0.133      
8 H 0.134      
9 H 0.119      
10 H 0.134      
11 H 0.119      


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 1.854 1.854
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.385 -3.539 0.000
y -3.539 -28.755 0.000
z 0.000 0.000 -29.120
Traceless
 xyz
x -2.448 -3.539 0.000
y -3.539 1.498 0.000
z 0.000 0.000 0.950
Polar
3z2-r21.899
x2-y2-2.630
xy-3.539
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.967 0.008 0.000
y 0.008 5.596 0.000
z 0.000 0.000 4.990


<r2> (average value of r2) Å2
<r2> 130.224
(<r2>)1/2 11.412