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

using model chemistry: QCISD/6-311G*

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/6-311G*
 hartrees
Energy at 0K-316.898370
Energy at 298.15K 
HF Energy-316.041578
Nuclear repulsion energy188.130087
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/6-311G*
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 3137 3004 32.58      
2 A 3080 2949 4.69      
3 A 3052 2922 10.16      
4 A 1554 1488 0.31      
5 A 1499 1435 10.56      
6 A 1471 1408 10.18      
7 A 1337 1280 0.40      
8 A 1271 1217 1.00      
9 A 1147 1098 23.26      
10 A 1032 988 41.61      
11 A 894 856 0.10      
12 A 554 531 4.38      
13 A 252 241 4.20      
14 A 87 83 4.00      
15 B 3138 3004 33.78      
16 B 3102 2970 25.79      
17 B 3076 2945 63.06      
18 B 1557 1490 3.39      
19 B 1452 1391 14.31      
20 B 1421 1361 4.44      
21 B 1287 1232 7.54      
22 B 1153 1104 13.54      
23 B 1120 1073 94.33      
24 B 982 940 24.75      
25 B 795 761 2.85      
26 B 424 406 8.06      
27 B 203 194 11.50      

Unscaled Zero Point Vibrational Energy (zpe) 20037.5 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 19183.9 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/6-311G*
ABC
0.30139 0.09998 0.09314

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.987
C2 0.000 1.261 0.142
C3 0.000 -1.261 0.142
F4 1.159 1.294 -0.631
F5 -1.159 -1.294 -0.631
H6 0.887 -0.003 1.635
H7 -0.887 0.003 1.635
H8 -0.855 1.280 -0.541
H9 -0.008 2.162 0.766
H10 0.855 -1.280 -0.541
H11 0.008 -2.162 0.766

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 H6 H7 H8 H9 H10 H11
C11.51791.51792.37422.37421.09831.09832.16912.17312.16912.1731
C21.51792.52191.39342.91032.14772.14411.09441.09572.76663.4791
C31.51792.52192.91031.39342.14412.14772.76663.47911.09441.0957
F42.37421.39342.91033.47432.62513.31462.01532.01602.59383.9014
F52.37422.91031.39343.47433.31462.62512.59383.90142.01532.0160
H61.09832.14772.14412.62513.31461.77433.06842.49842.52332.4877
H71.09832.14412.14773.31462.62511.77432.52332.48773.06842.4984
H82.16911.09442.76662.01532.59383.06842.52331.78983.07823.7813
H92.17311.09573.47912.01603.90142.49842.48771.78983.78134.3236
H102.16912.76661.09442.59382.01532.52333.06843.07823.78131.7898
H112.17313.47911.09573.90142.01602.48772.49843.78134.32361.7898

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 109.199 C1 C2 H8 111.233
C1 C2 H9 111.475 C1 C3 F5 109.199
C1 C3 H10 111.233 C1 C3 H11 111.475
C2 C1 C3 112.344 C2 C1 H6 109.300
C2 C1 H7 109.021 C3 C1 H6 109.021
C3 C1 H7 109.300 F4 C2 H8 107.596
F4 C2 H9 107.576 F5 C3 H10 107.596
F5 C3 H11 107.576 H6 C1 H7 107.747
H8 C2 H9 109.614 H10 C3 H11 109.614
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability