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

using model chemistry: QCISD/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 QCISD/6-31G**
 hartrees
Energy at 0K-316.780945
Energy at 298.15K 
HF Energy-315.970065
Nuclear repulsion energy188.712459
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 QCISD/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 3194 3007 35.12      
2 A 3134 2950 6.33      
3 A 3115 2933 7.11      
4 A 1577 1485 0.49      
5 A 1525 1436 6.04      
6 A 1486 1399 15.36      
7 A 1344 1266 0.00      
8 A 1275 1201 1.08      
9 A 1156 1088 21.73      
10 A 1042 981 36.14      
11 A 906 853 0.18      
12 A 558 525 4.16      
13 A 253 238 3.72      
14 A 89 84 3.23      
15 B 3195 3008 40.67      
16 B 3169 2983 16.81      
17 B 3130 2946 70.81      
18 B 1580 1488 2.05      
19 B 1466 1380 14.19      
20 B 1438 1353 6.79      
21 B 1288 1212 7.28      
22 B 1166 1097 14.42      
23 B 1130 1064 76.08      
24 B 995 937 23.60      
25 B 803 756 2.74      
26 B 422 397 7.59      
27 B 207 195 11.88      

Unscaled Zero Point Vibrational Energy (zpe) 20321.3 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 19130.5 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 QCISD/6-31G**
ABC
0.29456 0.10289 0.09514

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.002
C2 0.000 1.254 0.151
C3 0.000 -1.254 0.151
F4 1.152 1.257 -0.646
F5 -1.152 -1.257 -0.646
H6 0.883 -0.004 1.646
H7 -0.883 0.004 1.646
H8 -0.867 1.273 -0.510
H9 0.010 2.156 0.764
H10 0.867 -1.273 -0.510
H11 -0.010 -2.156 0.764

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 H6 H7 H8 H9 H10 H11
C11.51561.51562.37112.37111.09261.09262.15832.16902.15832.1690
C21.51562.50731.40022.87452.14392.13951.08981.09102.75143.4642
C31.51562.50732.87451.40022.13952.14392.75143.46421.08981.0910
F42.37111.40022.87453.40912.62923.31082.02272.02452.54923.8709
F52.37112.87451.40023.40913.31082.62922.54923.87092.02272.0245
H61.09262.14392.13952.62923.31081.76603.05582.49042.50172.4914
H71.09262.13952.14393.31082.62921.76602.50172.49143.05582.4904
H82.15831.08982.75142.02272.54923.05582.50171.78113.07963.7566
H92.16901.09103.46422.02453.87092.49042.49141.78113.75664.3117
H102.15832.75141.08982.54922.02272.50173.05583.07963.75661.7811
H112.16903.46421.09103.87092.02452.49142.49043.75664.31171.7811

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 108.754 C1 C2 H8 110.806
C1 C2 H9 111.589 C1 C3 F5 108.754
C1 C3 H10 110.806 C1 C3 H11 111.589
C2 C1 C3 111.616 C2 C1 H6 109.498
C2 C1 H7 109.156 C3 C1 H6 109.156
C3 C1 H7 109.498 F4 C2 H8 108.003
F4 C2 H9 108.067 F5 C3 H10 108.003
F5 C3 H11 108.067 H6 C1 H7 107.838
H8 C2 H9 109.510 H10 C3 H11 109.510
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability