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

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-315.765789
Energy at 298.15K 
HF Energy-315.765789
Nuclear repulsion energy188.410489
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 B3PW91/3-21G*
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 3136 3009 30.13      
2 A 3092 2966 4.71      
3 A 3076 2951 0.01      
4 A 1561 1498 1.86      
5 A 1516 1455 9.56      
6 A 1465 1405 5.63      
7 A 1347 1292 0.41      
8 A 1268 1216 0.02      
9 A 1131 1085 8.50      
10 A 1020 979 32.37      
11 A 889 853 0.69      
12 A 548 526 2.70      
13 A 257 246 4.63      
14 A 92 88 3.10      
15 B 3150 3022 26.80      
16 B 3126 2999 13.05      
17 B 3075 2950 70.48      
18 B 1575 1511 7.06      
19 B 1438 1379 9.60      
20 B 1417 1359 4.27      
21 B 1259 1208 7.09      
22 B 1134 1088 18.30      
23 B 1091 1047 38.31      
24 B 991 951 19.95      
25 B 795 762 2.56      
26 B 390 374 7.12      
27 B 205 197 15.79      

Unscaled Zero Point Vibrational Energy (zpe) 20021.5 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 19208.7 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 B3PW91/3-21G*
ABC
0.28158 0.10610 0.09747

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.037
C2 0.000 1.238 0.152
C3 0.000 -1.238 0.152
F4 1.172 1.197 -0.661
F5 -1.172 -1.197 -0.661
H6 0.892 -0.006 1.674
H7 -0.892 0.006 1.674
H8 -0.882 1.201 -0.494
H9 -0.003 2.159 0.743
H10 0.882 -1.201 -0.494
H11 0.003 -2.159 0.743

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 H6 H7 H8 H9 H10 H11
C11.52191.52192.38542.38541.09541.09542.13692.17922.13692.1792
C21.52192.47531.42642.82172.15842.15111.09391.09512.67253.4480
C31.52192.47532.82171.42642.15112.15842.67253.44801.09391.0951
F42.38541.42642.82173.35062.64123.33542.06042.06772.42143.8216
F52.38542.82171.42643.35063.33542.64122.42143.82162.06042.0677
H61.09542.15842.15112.64123.33541.78343.05012.52092.47532.5082
H71.09542.15112.15843.33542.64121.78342.47532.50823.05012.5209
H82.13691.09392.67252.06042.42143.05012.47531.79542.98003.6885
H92.17921.09513.44802.06773.82162.52092.50821.79543.68854.3185
H102.13692.67251.09392.42142.06042.47533.05012.98003.68851.7954
H112.17923.44801.09513.82162.06772.50822.52093.68854.31851.7954

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 107.965 C1 C2 H8 108.447
C1 C2 H9 111.720 C1 C3 F5 107.965
C1 C3 H10 108.447 C1 C3 H11 111.720
C2 C1 C3 108.827 C2 C1 H6 110.044
C2 C1 H7 109.466 C3 C1 H6 109.466
C3 C1 H7 110.044 F4 C2 H8 108.962
F4 C2 H9 109.471 F5 C3 H10 108.962
F5 C3 H11 109.471 H6 C1 H7 108.986
H8 C2 H9 110.207 H10 C3 H11 110.207
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.544      
2 C -0.097      
3 C -0.097      
4 F -0.304      
5 F -0.304      
6 H 0.234      
7 H 0.234      
8 H 0.228      
9 H 0.211      
10 H 0.228      
11 H 0.211      


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 2.141 2.141
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.581 -3.781 0.000
y -3.781 -27.880 0.000
z 0.000 0.000 -29.211
Traceless
 xyz
x -3.035 -3.781 0.000
y -3.781 2.516 0.000
z 0.000 0.000 0.519
Polar
3z2-r21.039
x2-y2-3.701
xy-3.781
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.421 -0.024 0.000
y -0.024 4.838 0.000
z 0.000 0.000 4.379


<r2> (average value of r2) Å2
<r2> 124.501
(<r2>)1/2 11.158